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CVE-2019-5866

Out of bounds memory access in JavaScript in Google Chrome prior to 75.0.3770.142 allowed a...

9.8 CriticalFix available

Out of bounds memory access in JavaScript in Google Chrome prior to 75.0.3770.142 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.

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

1.11%Up 0.8 points since Apr 14, 2021
90%50%10%1%

What each source reports

NVD Score used 9.8

Out of bounds memory access in JavaScript in Google Chrome prior to 75.0.3770.142 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.

Record
CVE-2019-5866
CVSS 3.1
9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS 2.0
7.5 HighAV:N/AC:L/Au:N/C:P/I:P/A:P
Weakness
CWE-787
Updated
2026-11-02
CVE List No score

Out of bounds memory access in JavaScript in Google Chrome prior to 75.0.3770.142 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.

Record
CVE-2019-5866
Updated
2026-11-02
EUVDEUVD-2019-15437 No score

Out of bounds memory access in JavaScript in Google Chrome prior to 75.0.3770.142 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.

Record
EUVD-2019-15437
Updated
2026-11-03
GitHub AdvisoriesGHSA-pmgx-8jcm-w9ch No score

Out of bounds memory access in JavaScript in Google Chrome prior to 75.0.3770.142 allowed a...

Out of bounds memory access in JavaScript in Google Chrome prior to 75.0.3770.142 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.

Record
GHSA-pmgx-8jcm-w9ch
Updated
2026-11-02
OSV 9.8

Out of bounds memory access in JavaScript in Google Chrome prior to 75.0.3770.142 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.

Record
CVE-2019-5866
CVSS 3.1
9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Updated
2026-11-02
OSVDEBIAN-CVE-2019-5866 9.8

Out of bounds memory access in JavaScript in Google Chrome prior to 75.0.3770.142 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.

Record
DEBIAN-CVE-2019-5866
CVSS 3.1
9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Updated
2026-11-02
OSVUBUNTU-CVE-2019-5866 9.8

Out of bounds memory access in JavaScript in Google Chrome prior to 75.0.3770.142 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.

Record
UBUNTU-CVE-2019-5866
CVSS 3.1
9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Updated
2026-11-02
OSVMGASA-2019-0283 No score

Updated chromium-browser-stable packages fix security vulnerabilities

Multiple flaws were found in the way Chromium 73.0.3683.103 processes various types of web content, where loading a web page containing malicious content could cause Chromium to crash, execute arbitrary code, or disclose sensitive information. (CVE-2019-5805, CVE-2019-5806, CVE-2019-5807, CVE-2019-5808, CVE-2019-5809, CVE-2019-5810, CVE-2019-5811, CVE-2019-5812, CVE-2019-5813, CVE-2019-5814, CVE-2019-5815, CVE-2019-5816, CVE-2019-5817, CVE-2019-5818, CVE-2019-5819, CVE-2019-5820, CVE-2019-5821, CVE-2019-5822, CVE-2019-5823, CVE-2019-5824, CVE-2019-5825, CVE-2019-5826, CVE-2019-5827, CVE-2019-5828, CVE-2019-5829, CVE-2019-5830, CVE-2019-5831, CVE-2019-5832, CVE-2019-5833, CVE-2019-5834, CVE-2019-5835, CVE-2019-5836, CVE-2019-5837, CVE-2019-5838, CVE-2019-5839, CVE-2019-5840, CVE-2019-5842, CVE-2019-5847, CVE-2019-5848, CVE-2019-5849, CVE-2019-5850, CVE-2019-5851, CVE-2019-5852, CVE-2019-5853, CVE-2019-5854, CVE-2019-5855, CVE-2019-5856, CVE-2019-5857, CVE-2019-5858, CVE-2019-5859, CVE-2019-5860, CVE-2019-5861, CVE-2019-5862, CVE-2019-5863, CVE-2019-5864, CVE-2019-5865, CVE-2019-5866, CVE-2019-5867, CVE-2019-5868, CVE-2019-5869, CVE-2019-5870, CVE-2019-5871, CVE-2019-5872, CVE-2019-5873, CVE-2019-5874, CVE-2019-5875, CVE-2019-5876, CVE-2019-5877, CVE-2019-5878, CVE-2019-5879, CVE-2019-5880, CVE-2019-5881, CVE-2019-13659, CVE-2019-13660, CVE-2019-13661, CVE-2019-13662, CVE-2019-13663, CVE-2019-13664, CVE-2019-13665, CVE-2019-13666, CVE-2019-13667, CVE-2019-13668, CVE-2019-13669, CVE-2019-13670, CVE-2019-13671, CVE-2019-13673, CVE-2019-13674, CVE-2019-13675, CVE-2019-13676, CVE-2019-13677, CVE-2019-13678, CVE-2019-13679, CVE-2019-13680, CVE-2019-13681, CVE-2019-13682, CVE-2019-13683)

Record
MGASA-2019-0283
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
chromium
Debian:12
 before 76.0.3809.71-1
76.0.3809.71-1
chromium
Debian:13
 before 76.0.3809.71-1
76.0.3809.71-1
chromium
Debian:14
 before 76.0.3809.71-1
76.0.3809.71-1
chromium-browser-stable
Mageia:7
From an advisory covering 96 CVEs
 before 77.0.3865.75-1.mga7
77.0.3865.75-1.mga7
chromium-browser
Ubuntu:16.04:LTS
 before 76.0.3809.87-0ubuntu0.16.04.1, plus listed versions
45.0.2454.101-0ubuntu1.120147.0.2526.73-0ubuntu1.121847.0.2526.106-0ubuntu1.122148.0.2564.82-0ubuntu1.122248.0.2564.116-0ubuntu1.1229
Show 45 moreShow less
49.0.2623.87-0ubuntu1.123249.0.2623.108-0ubuntu1.123350.0.2661.102-0ubuntu0.16.04.1.123751.0.2704.79-0ubuntu0.16.04.1.124252.0.2743.116-0ubuntu0.16.04.1.125053.0.2785.143-0ubuntu0.16.04.1.125453.0.2785.143-0ubuntu0.16.04.1.125755.0.2883.87-0ubuntu0.16.04.126356.0.2924.76-0ubuntu0.16.04.126857.0.2987.98-0ubuntu0.16.04.127658.0.3029.81-0ubuntu0.16.04.127758.0.3029.96-0ubuntu0.16.04.127958.0.3029.110-0ubuntu0.16.04.128159.0.3071.109-0ubuntu0.16.04.128959.0.3071.109-0ubuntu0.16.04.129160.0.3112.78-0ubuntu0.16.04.129360.0.3112.113-0ubuntu0.16.04.129861.0.3163.79-0ubuntu0.16.04.130061.0.3163.100-0ubuntu0.16.04.130662.0.3202.62-0ubuntu0.16.04.130862.0.3202.75-0ubuntu0.16.04.131362.0.3202.89-0ubuntu0.16.04.131562.0.3202.94-0ubuntu0.16.04.131763.0.3239.84-0ubuntu0.16.04.163.0.3239.132-0ubuntu0.16.04.164.0.3282.119-0ubuntu0.16.04.164.0.3282.140-0ubuntu0.16.04.164.0.3282.167-0ubuntu0.16.04.165.0.3325.181-0ubuntu0.16.04.166.0.3359.139-0ubuntu0.16.04.366.0.3359.181-0ubuntu0.16.04.167.0.3396.99-0ubuntu0.16.04.268.0.3440.75-0ubuntu0.16.04.168.0.3440.106-0ubuntu0.16.04.169.0.3497.81-0ubuntu0.16.04.170.0.3538.67-0ubuntu0.16.04.170.0.3538.77-0ubuntu0.16.04.170.0.3538.110-0ubuntu0.16.04.171.0.3578.80-0ubuntu0.16.04.171.0.3578.98-0ubuntu0.16.04.172.0.3626.119-0ubuntu0.16.04.172.0.3626.121-0ubuntu0.16.04.173.0.3683.75-0ubuntu0.16.04.173.0.3683.86-0ubuntu0.16.04.174.0.3729.169-0ubuntu0.16.04.1
76.0.3809.87-0ubuntu0.16.04.1
chromium-browser
Ubuntu:18.04:LTS
 before 75.0.3770.142-0ubuntu0.18.04.1, plus listed versions
61.0.3163.100-0ubuntu1.137862.0.3202.62-0ubuntu0.17.10.138062.0.3202.89-0ubuntu1.138662.0.3202.94-0ubuntu1.138863.0.3239.84-0ubuntu1
Show 23 moreShow less
63.0.3239.108-0ubuntu164.0.3282.119-0ubuntu164.0.3282.140-0ubuntu164.0.3282.167-0ubuntu165.0.3325.146-0ubuntu165.0.3325.181-0ubuntu166.0.3359.139-0ubuntu0.18.04.366.0.3359.181-0ubuntu0.18.04.167.0.3396.99-0ubuntu0.18.04.168.0.3440.75-0ubuntu0.18.04.168.0.3440.106-0ubuntu0.18.04.169.0.3497.81-0ubuntu0.18.04.170.0.3538.67-0ubuntu0.18.04.170.0.3538.77-0ubuntu0.18.04.170.0.3538.110-0ubuntu0.18.04.171.0.3578.80-0ubuntu0.18.04.171.0.3578.98-0ubuntu0.18.04.172.0.3626.119-0ubuntu0.18.04.172.0.3626.121-0ubuntu0.18.04.173.0.3683.75-0ubuntu0.18.04.173.0.3683.86-0ubuntu0.18.04.174.0.3729.169-0ubuntu0.18.04.175.0.3770.90-0ubuntu0.18.04.1
75.0.3770.142-0ubuntu0.18.04.1

History

History
RecordedChangedSources
affected, facts
aliasesEUVD
first indexedCVE List, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2019-5866 is a critical vulnerability (CVSS 9.8) in Google Chrome, published September 21, 2019. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.11%, the 66th percentile. Fixed in chromium 76.0.3809.71-1.

References

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