CVE-2017-7811
Memory safety bugs were reported in Firefox 55. Some of these bugs showed evidence of memory...
Memory safety bugs were reported in Firefox 55. Some of these bugs showed evidence of memory corruption and we presume that with enough effort that some of these could be exploited to run arbitrary code. This vulnerability affects Firefox < 56.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Exploit likelihood
What each source reports
NVD Score used
9.8
Memory safety bugs were reported in Firefox 55. Some of these bugs showed evidence of memory corruption and we presume that with enough effort that some of these could be exploited to run arbitrary code. This vulnerability affects Firefox < 56.
- Record
CVE-2017-7811- CVSS 3.0
- 9.8 Critical
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - CVSS 2.0
- 10.0 High
AV:N/AC:L/Au:N/C:C/I:C/A:C - Weakness
- CWE-119
- Updated
- 2026-11-02
CVE List No score
Memory safety bugs were reported in Firefox 55. Some of these bugs showed evidence of memory corruption and we presume that with enough effort that some of these could be exploited to run arbitrary code. This vulnerability affects Firefox < 56.
- Record
CVE-2017-7811- Updated
- 2026-11-02
EUVDEUVD-2017-16786 No score
Memory safety bugs were reported in Firefox 55. Some of these bugs showed evidence of memory corruption and we presume that with enough effort that some of these could be exploited to run arbitrary code. This vulnerability affects Firefox < 56.
- Record
EUVD-2017-16786- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-6j32-5w3w-vrq5
9.8
Memory safety bugs were reported in Firefox 55. Some of these bugs showed evidence of memory...
Memory safety bugs were reported in Firefox 55. Some of these bugs showed evidence of memory corruption and we presume that with enough effort that some of these could be exploited to run arbitrary code. This vulnerability affects Firefox < 56.
- Record
GHSA-6j32-5w3w-vrq5- CVSS 3.0
- 9.8 Critical
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-119
- Updated
- 2026-11-02
OSVUBUNTU-CVE-2017-7811
9.8
Memory safety bugs were reported in Firefox 55. Some of these bugs showed evidence of memory corruption and we presume that with enough effort that some of these could be exploited to run arbitrary code. This vulnerability affects Firefox < 56.
- Record
UBUNTU-CVE-2017-7811- CVSS 3.0
- 9.8 Critical
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Updated
- 2026-11-02
OSVopenSUSE-SU-2024:10600-1 No score
MozillaFirefox-92.0-1.2 on GA media
These are all security issues fixed in the MozillaFirefox-92.0-1.2 package on the GA media of openSUSE Tumbleweed.
- Record
openSUSE-SU-2024:10600-1- Updated
- 2026-11-02
OSVopenSUSE-SU-2024:14572-1 No score
firefox-esr-128.5.1-1.1 on GA media
These are all security issues fixed in the firefox-esr-128.5.1-1.1 package on the GA media of openSUSE Tumbleweed.
- Record
openSUSE-SU-2024:14572-1- Updated
- 2026-11-02
OSVUSN-3435-1 No score
firefox vulnerabilities
Multiple security issues were discovered in Firefox. If a user were tricked in to opening a specially crafted website, an attacker could potentially exploit these to read uninitialized memory, obtain sensitive information, bypass phishing and malware protection, spoof the origin in modal dialogs, conduct cross-site scripting (XSS) attacks, cause a denial of service via application crash, or execute arbitrary code. (CVE-2017-7793, CVE-2017-7810, CVE-2017-7811, CVE-2017-7812, CVE-2017-7813, CVE-2017-7814, CVE-2017-7815, CVE-2017-7818, CVE-2017-7819, CVE-2017-7820, CVE-2017-7822, CVE-2017-7823, CVE-2017-7824)
Martin Thomson discovered that NSS incorrectly generated handshake hashes. A remote attacker could potentially exploit this to cause a denial of service via application crash, or execute arbitrary code. (CVE-2017-7805)
Multiple security issues were discovered in WebExtensions. If a user were tricked in to installing a specially crafted extension, an attacker could potentially exploit these to download and open non-executable files without interaction, or obtain elevated privileges. (CVE-2017-7816, CVE-2017-7821)
- Record
USN-3435-1- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
firefoxUbuntu:14.04:LTS |
before 56.0+build6-0ubuntu0.14.04.1, plus listed versions 24.0+build1-0ubuntu125.0+build3-0ubuntu0.13.10.128.0~b2+build1-0ubuntu228.0+build1-0ubuntu128.0+build2-0ubuntu1 Show 45 moreShow less28.0+build2-0ubuntu229.0+build1-0ubuntu0.14.04.230.0+build1-0ubuntu0.14.04.331.0+build1-0ubuntu0.14.04.132.0+build1-0ubuntu0.14.04.132.0.3+build1-0ubuntu0.14.04.133.0+build2-0ubuntu0.14.04.134.0+build2-0ubuntu0.14.04.135.0+build3-0ubuntu0.14.04.235.0.1+build1-0ubuntu0.14.04.136.0+build2-0ubuntu0.14.04.436.0.1+build2-0ubuntu0.14.04.136.0.4+build1-0ubuntu0.14.04.137.0+build2-0ubuntu0.14.04.137.0.1+build1-0ubuntu0.14.04.137.0.2+build1-0ubuntu0.14.04.138.0+build3-0ubuntu0.14.04.139.0+build5-0ubuntu0.14.04.139.0.3+build2-0ubuntu0.14.04.140.0+build4-0ubuntu0.14.04.140.0+build4-0ubuntu0.14.04.440.0.3+build1-0ubuntu0.14.04.141.0+build3-0ubuntu0.14.04.141.0.1+build2-0ubuntu0.14.04.141.0.2+build2-0ubuntu0.14.04.142.0+build2-0ubuntu0.14.04.143.0+build1-0ubuntu0.14.04.143.0.4+build3-0ubuntu0.14.04.144.0+build3-0ubuntu0.14.04.144.0.1+build2-0ubuntu0.14.04.144.0.2+build1-0ubuntu0.14.04.145.0+build2-0ubuntu0.14.04.145.0.1+build1-0ubuntu0.14.04.245.0.2+build1-0ubuntu0.14.04.146.0+build5-0ubuntu0.14.04.246.0.1+build1-0ubuntu0.14.04.347.0+build3-0ubuntu0.14.04.148.0+build2-0ubuntu0.14.04.149.0+build4-0ubuntu0.14.04.149.0.2+build2-0ubuntu0.14.04.150.0+build2-0ubuntu0.14.04.250.0.2+build1-0ubuntu0.14.04.150.1.0+build2-0ubuntu0.14.04.151.0.1+build2-0ubuntu0.14.04.151.0.1+build2-0ubuntu0.14.04.2 |
56.0+build6-0ubuntu0.14.04.1 |
firefoxUbuntu:16.04:LTS |
before 56.0+build6-0ubuntu0.16.04.1, plus listed versions 41.0.2+build2-0ubuntu142.0+build2-0ubuntu144.0+build3-0ubuntu244.0.1+build1-0ubuntu144.0.2+build1-0ubuntu1 Show 23 moreShow less45.0+build2-0ubuntu145.0.1+build1-0ubuntu145.0.2+build1-0ubuntu146.0+build5-0ubuntu0.16.04.246.0.1+build1-0ubuntu0.16.04.247.0+build3-0ubuntu0.16.04.148.0+build2-0ubuntu0.16.04.149.0+build4-0ubuntu0.16.04.149.0.2+build2-0ubuntu0.16.04.250.0+build2-0ubuntu0.16.04.250.0.2+build1-0ubuntu0.16.04.150.1.0+build2-0ubuntu0.16.04.151.0.1+build2-0ubuntu0.16.04.151.0.1+build2-0ubuntu0.16.04.252.0+build2-0ubuntu0.16.04.152.0.1+build2-0ubuntu0.16.04.152.0.2+build1-0ubuntu0.16.04.153.0+build6-0ubuntu0.16.04.153.0.2+build1-0ubuntu0.16.04.253.0.3+build1-0ubuntu0.16.04.254.0+build3-0ubuntu0.16.04.155.0.1+build2-0ubuntu0.16.04.255.0.2+build1-0ubuntu0.16.04.1 |
56.0+build6-0ubuntu0.16.04.1 |
firefoxUbuntu:18.04:LTS |
before 56.0+build6-0ubuntu1 | 56.0+build6-0ubuntu1 |
mozjs38Ubuntu:18.04:LTS |
All versions, plus listed versions 38.8.0~repack1-0ubuntu138.8.0~repack1-0ubuntu338.8.0~repack1-0ubuntu4 |
None known |
firefoxUbuntu:14.04:LTS From an advisory covering 16 CVEs |
before 56.0+build6-0ubuntu0.14.04.1, plus listed versions 24.0+build1-0ubuntu125.0+build3-0ubuntu0.13.10.128.0~b2+build1-0ubuntu228.0+build1-0ubuntu128.0+build2-0ubuntu1 Show 45 moreShow less28.0+build2-0ubuntu229.0+build1-0ubuntu0.14.04.230.0+build1-0ubuntu0.14.04.331.0+build1-0ubuntu0.14.04.132.0+build1-0ubuntu0.14.04.132.0.3+build1-0ubuntu0.14.04.133.0+build2-0ubuntu0.14.04.134.0+build2-0ubuntu0.14.04.135.0+build3-0ubuntu0.14.04.235.0.1+build1-0ubuntu0.14.04.136.0+build2-0ubuntu0.14.04.436.0.1+build2-0ubuntu0.14.04.136.0.4+build1-0ubuntu0.14.04.137.0+build2-0ubuntu0.14.04.137.0.1+build1-0ubuntu0.14.04.137.0.2+build1-0ubuntu0.14.04.138.0+build3-0ubuntu0.14.04.139.0+build5-0ubuntu0.14.04.139.0.3+build2-0ubuntu0.14.04.140.0+build4-0ubuntu0.14.04.140.0+build4-0ubuntu0.14.04.440.0.3+build1-0ubuntu0.14.04.141.0+build3-0ubuntu0.14.04.141.0.1+build2-0ubuntu0.14.04.141.0.2+build2-0ubuntu0.14.04.142.0+build2-0ubuntu0.14.04.143.0+build1-0ubuntu0.14.04.143.0.4+build3-0ubuntu0.14.04.144.0+build3-0ubuntu0.14.04.144.0.1+build2-0ubuntu0.14.04.144.0.2+build1-0ubuntu0.14.04.145.0+build2-0ubuntu0.14.04.145.0.1+build1-0ubuntu0.14.04.245.0.2+build1-0ubuntu0.14.04.146.0+build5-0ubuntu0.14.04.246.0.1+build1-0ubuntu0.14.04.347.0+build3-0ubuntu0.14.04.148.0+build2-0ubuntu0.14.04.149.0+build4-0ubuntu0.14.04.149.0.2+build2-0ubuntu0.14.04.150.0+build2-0ubuntu0.14.04.250.0.2+build1-0ubuntu0.14.04.150.1.0+build2-0ubuntu0.14.04.151.0.1+build2-0ubuntu0.14.04.151.0.1+build2-0ubuntu0.14.04.2 |
56.0+build6-0ubuntu0.14.04.1 |
firefoxUbuntu:16.04:LTS From an advisory covering 16 CVEs |
before 56.0+build6-0ubuntu0.16.04.1, plus listed versions 41.0.2+build2-0ubuntu142.0+build2-0ubuntu144.0+build3-0ubuntu244.0.1+build1-0ubuntu144.0.2+build1-0ubuntu1 Show 23 moreShow less45.0+build2-0ubuntu145.0.1+build1-0ubuntu145.0.2+build1-0ubuntu146.0+build5-0ubuntu0.16.04.246.0.1+build1-0ubuntu0.16.04.247.0+build3-0ubuntu0.16.04.148.0+build2-0ubuntu0.16.04.149.0+build4-0ubuntu0.16.04.149.0.2+build2-0ubuntu0.16.04.250.0+build2-0ubuntu0.16.04.250.0.2+build1-0ubuntu0.16.04.150.1.0+build2-0ubuntu0.16.04.151.0.1+build2-0ubuntu0.16.04.151.0.1+build2-0ubuntu0.16.04.252.0+build2-0ubuntu0.16.04.152.0.1+build2-0ubuntu0.16.04.152.0.2+build1-0ubuntu0.16.04.153.0+build6-0ubuntu0.16.04.153.0.2+build1-0ubuntu0.16.04.253.0.3+build1-0ubuntu0.16.04.254.0+build3-0ubuntu0.16.04.155.0.1+build2-0ubuntu0.16.04.255.0.2+build1-0ubuntu0.16.04.1 |
56.0+build6-0ubuntu0.16.04.1 |
MozillaFirefoxopenSUSE:Tumbleweed From an advisory covering 661 CVEs |
before 92.0-1.2 | 92.0-1.2 |
firefox-esropenSUSE:Tumbleweed From an advisory covering 1860 CVEs |
before 128.5.1-1.1 | 128.5.1-1.1 |
History
| Recorded | Changed | Sources |
|---|---|---|
| affected, facts | ||
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2017-7811 is a critical vulnerability (CVSS 9.8) in Mozilla Firefox, published October 2, 2017. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 2.27%, the 83rd percentile. Fixed in firefox 56.0+build6-0ubuntu0.14.04.1.
References
securitytracker.com/id/1039465
mozilla.org/security/advisories/mfsa2017-21
securityfocus.com/bid/101057
bugzilla.mozilla.org/buglist.cgi?bug_id=1392105%2C1395919%2C1388113%2C1348955%2C1394522%2C1387659%2C1369560%2C1388045%2C1378658%2C1379414%2C1385112%2C1367497
nvd.nist.gov/vuln/detail/CVE-2017-7811
github.com/advisories/GHSA-6j32-5w3w-vrq5
Show 194 moreShow less
ubuntu.com/security/CVE-2017-7811
mozilla.org/en-US/security/advisories/mfsa2017-21
ubuntu.com/security/notices/USN-3435-1
cve.org/CVERecord?id=CVE-2017-7811
ubuntu.com/security/CVE-2017-7793
ubuntu.com/security/CVE-2017-7805
ubuntu.com/security/CVE-2017-7810
ubuntu.com/security/CVE-2017-7812
ubuntu.com/security/CVE-2017-7813
ubuntu.com/security/CVE-2017-7814
ubuntu.com/security/CVE-2017-7815
ubuntu.com/security/CVE-2017-7816
ubuntu.com/security/CVE-2017-7818
ubuntu.com/security/CVE-2017-7819
ubuntu.com/security/CVE-2017-7820
ubuntu.com/security/CVE-2017-7821
ubuntu.com/security/CVE-2017-7822
ubuntu.com/security/CVE-2017-7823
ubuntu.com/security/CVE-2017-7824
suse.com/security/cve/CVE-2006-6077
suse.com/security/cve/CVE-2007-0008
suse.com/security/cve/CVE-2007-0009
suse.com/security/cve/CVE-2007-0078
suse.com/security/cve/CVE-2007-0079
suse.com/security/cve/CVE-2007-0775
suse.com/security/cve/CVE-2007-0776
suse.com/security/cve/CVE-2007-0777
suse.com/security/cve/CVE-2007-0780
suse.com/security/cve/CVE-2007-0800
suse.com/security/cve/CVE-2007-0981
suse.com/security/cve/CVE-2007-0995
suse.com/security/cve/CVE-2007-0996
suse.com/security/cve/CVE-2007-3089
suse.com/security/cve/CVE-2007-3285
suse.com/security/cve/CVE-2007-3656
suse.com/security/cve/CVE-2007-3670
suse.com/security/cve/CVE-2007-3734
suse.com/security/cve/CVE-2007-3735
suse.com/security/cve/CVE-2007-3736
suse.com/security/cve/CVE-2007-3737
suse.com/security/cve/CVE-2007-3738
suse.com/security/cve/CVE-2008-0412
suse.com/security/cve/CVE-2008-0414
suse.com/security/cve/CVE-2008-0415
suse.com/security/cve/CVE-2008-0417
suse.com/security/cve/CVE-2008-0418
suse.com/security/cve/CVE-2008-0419
suse.com/security/cve/CVE-2008-0591
suse.com/security/cve/CVE-2008-0592
suse.com/security/cve/CVE-2008-0593
suse.com/security/cve/CVE-2008-0594
suse.com/security/cve/CVE-2008-4063
suse.com/security/cve/CVE-2009-0352
suse.com/security/cve/CVE-2009-0354
suse.com/security/cve/CVE-2009-0355
suse.com/security/cve/CVE-2009-0356
suse.com/security/cve/CVE-2009-0357
suse.com/security/cve/CVE-2009-0358
suse.com/security/cve/CVE-2017-16541
suse.com/security/cve/CVE-2017-5373
suse.com/security/cve/CVE-2017-5374
suse.com/security/cve/CVE-2017-5375
suse.com/security/cve/CVE-2017-5376
suse.com/security/cve/CVE-2017-5377
suse.com/security/cve/CVE-2017-5378
suse.com/security/cve/CVE-2017-5379
suse.com/security/cve/CVE-2017-5380
suse.com/security/cve/CVE-2017-5381
suse.com/security/cve/CVE-2017-5382
suse.com/security/cve/CVE-2017-5383
suse.com/security/cve/CVE-2017-5384
suse.com/security/cve/CVE-2017-5385
suse.com/security/cve/CVE-2017-5386
suse.com/security/cve/CVE-2017-5387
suse.com/security/cve/CVE-2017-5388
suse.com/security/cve/CVE-2017-5389
suse.com/security/cve/CVE-2017-5390
suse.com/security/cve/CVE-2017-5391
suse.com/security/cve/CVE-2017-5392
suse.com/security/cve/CVE-2017-5393
suse.com/security/cve/CVE-2017-5394
suse.com/security/cve/CVE-2017-5395
suse.com/security/cve/CVE-2017-5396
suse.com/security/cve/CVE-2017-5398
suse.com/security/cve/CVE-2017-5399
suse.com/security/cve/CVE-2017-5400
suse.com/security/cve/CVE-2017-5401
suse.com/security/cve/CVE-2017-5402
suse.com/security/cve/CVE-2017-5403
suse.com/security/cve/CVE-2017-5404
suse.com/security/cve/CVE-2017-5405
suse.com/security/cve/CVE-2017-5406
suse.com/security/cve/CVE-2017-5407
suse.com/security/cve/CVE-2017-5408
suse.com/security/cve/CVE-2017-5410
suse.com/security/cve/CVE-2017-5412
suse.com/security/cve/CVE-2017-5413
suse.com/security/cve/CVE-2017-5414
suse.com/security/cve/CVE-2017-5415
suse.com/security/cve/CVE-2017-5416
suse.com/security/cve/CVE-2017-5417
suse.com/security/cve/CVE-2017-5418
suse.com/security/cve/CVE-2017-5419
suse.com/security/cve/CVE-2017-5420
suse.com/security/cve/CVE-2017-5421
suse.com/security/cve/CVE-2017-5422
suse.com/security/cve/CVE-2017-5426
suse.com/security/cve/CVE-2017-5427
suse.com/security/cve/CVE-2017-5428
suse.com/security/cve/CVE-2017-5429
suse.com/security/cve/CVE-2017-5430
suse.com/security/cve/CVE-2017-5432
suse.com/security/cve/CVE-2017-5433
suse.com/security/cve/CVE-2017-5434
suse.com/security/cve/CVE-2017-5435
suse.com/security/cve/CVE-2017-5436
suse.com/security/cve/CVE-2017-5437
suse.com/security/cve/CVE-2017-5438
suse.com/security/cve/CVE-2017-5439
suse.com/security/cve/CVE-2017-5440
suse.com/security/cve/CVE-2017-5441
suse.com/security/cve/CVE-2017-5442
suse.com/security/cve/CVE-2017-5443
suse.com/security/cve/CVE-2017-5444
suse.com/security/cve/CVE-2017-5445
suse.com/security/cve/CVE-2017-5446
suse.com/security/cve/CVE-2017-5447
suse.com/security/cve/CVE-2017-5448
suse.com/security/cve/CVE-2017-5449
suse.com/security/cve/CVE-2017-5451
suse.com/security/cve/CVE-2017-5453
suse.com/security/cve/CVE-2017-5454
suse.com/security/cve/CVE-2017-5455
suse.com/security/cve/CVE-2017-5456
suse.com/security/cve/CVE-2017-5458
suse.com/security/cve/CVE-2017-5459
suse.com/security/cve/CVE-2017-5460
suse.com/security/cve/CVE-2017-5461
suse.com/security/cve/CVE-2017-5462
suse.com/security/cve/CVE-2017-5464
suse.com/security/cve/CVE-2017-5465
suse.com/security/cve/CVE-2017-5466
suse.com/security/cve/CVE-2017-5467
suse.com/security/cve/CVE-2017-5468
suse.com/security/cve/CVE-2017-5469
suse.com/security/cve/CVE-2017-7753
suse.com/security/cve/CVE-2017-7779
suse.com/security/cve/CVE-2017-7780
suse.com/security/cve/CVE-2017-7781
suse.com/security/cve/CVE-2017-7782
suse.com/security/cve/CVE-2017-7783
suse.com/security/cve/CVE-2017-7784
suse.com/security/cve/CVE-2017-7785
suse.com/security/cve/CVE-2017-7786
suse.com/security/cve/CVE-2017-7787
suse.com/security/cve/CVE-2017-7788
suse.com/security/cve/CVE-2017-7789
suse.com/security/cve/CVE-2017-7790
suse.com/security/cve/CVE-2017-7791
suse.com/security/cve/CVE-2017-7792
suse.com/security/cve/CVE-2017-7793
suse.com/security/cve/CVE-2017-7794
suse.com/security/cve/CVE-2017-7796
suse.com/security/cve/CVE-2017-7797
suse.com/security/cve/CVE-2017-7798
suse.com/security/cve/CVE-2017-7799
suse.com/security/cve/CVE-2017-7800
suse.com/security/cve/CVE-2017-7801
suse.com/security/cve/CVE-2017-7802
suse.com/security/cve/CVE-2017-7803
suse.com/security/cve/CVE-2017-7804
suse.com/security/cve/CVE-2017-7805
suse.com/security/cve/CVE-2017-7806
suse.com/security/cve/CVE-2017-7807
suse.com/security/cve/CVE-2017-7808
suse.com/security/cve/CVE-2017-7809
suse.com/security/cve/CVE-2017-7810
suse.com/security/cve/CVE-2017-7811
suse.com/security/cve/CVE-2017-7812
suse.com/security/cve/CVE-2017-7813
suse.com/security/cve/CVE-2017-7814
suse.com/security/cve/CVE-2017-7815
suse.com/security/cve/CVE-2017-7816
suse.com/security/cve/CVE-2017-7817
suse.com/security/cve/CVE-2017-7818
suse.com/security/cve/CVE-2017-7819
suse.com/security/cve/CVE-2017-7820
suse.com/security/cve/CVE-2017-7821
suse.com/security/cve/CVE-2017-7822
suse.com/security/cve/CVE-2017-7823
suse.com/security/cve/CVE-2017-7824
suse.com/security/cve/CVE-2017-7825
suse.com/security/cve/CVE-2017-7826
lists.opensuse.org/archives/list/[email protected]/thread/3HI2RC7AJAHY74Q6MK7GNGWU6TITB22V
Left out here: 18 versions and 1,686 references. The JSON record has them.