CVE-2020-7733
Regular Expression Denial of Service (ReDoS)
The package ua-parser-js before 0.7.22 are vulnerable to Regular Expression Denial of Service (ReDoS) via the regex for Redmi Phones and Mi Pad Tablets UA.
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
- None
- Integrity
- None
- Availability
- High
Exploit likelihood
What each source reports
CVE List Score used
Regular Expression Denial of Service (ReDoS)
The package ua-parser-js before 0.7.22 are vulnerable to Regular Expression Denial of Service (ReDoS) via the regex for Redmi Phones and Mi Pad Tablets UA.
- Record
CVE-2020-7733- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Updated
- 2026-11-02
EUVDEUVD-2021-0967
The package ua-parser-js before 0.7.22 are vulnerable to Regular Expression Denial of Service (ReDoS) via the regex for Redmi Phones and Mi Pad Tablets UA.
- Record
EUVD-2021-0967- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Updated
- 2026-11-03
GitHub AdvisoriesGHSA-662x-fhqg-9p8v
Regular Expression Denial of Service in ua-parser-js
The package ua-parser-js before 0.7.22 are vulnerable to Regular Expression Denial of Service (ReDoS) via the regex for Redmi Phones and Mi Pad Tablets UA.
- Record
GHSA-662x-fhqg-9p8v- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Weakness
- CWE-400
- Updated
- 2026-11-02
NVD
The package ua-parser-js before 0.7.22 are vulnerable to Regular Expression Denial of Service (ReDoS) via the regex for Redmi Phones and Mi Pad Tablets UA.
- Record
CVE-2020-7733- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - CVSS 2.0
- 5.0 Medium
AV:N/AC:L/Au:N/C:N/I:N/A:P - Weakness
- CWE-400
- Updated
- 2026-11-02
OSV
The package ua-parser-js before 0.7.22 are vulnerable to Regular Expression Denial of Service (ReDoS) via the regex for Redmi Phones and Mi Pad Tablets UA.
- Record
CVE-2020-7733- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Updated
- 2026-11-02
OSVGHSA-662x-fhqg-9p8v
Regular Expression Denial of Service in ua-parser-js
The package ua-parser-js before 0.7.22 are vulnerable to Regular Expression Denial of Service (ReDoS) via the regex for Redmi Phones and Mi Pad Tablets UA.
- Record
GHSA-662x-fhqg-9p8v- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Weakness
- CWE-400
- Updated
- 2026-11-02
Show 4 moreShow less
OSVRHSA-2021:2865
Red Hat Security Advisory: RHV Manager (ovirt-engine) security update [ovirt-4.4.7]
- Record
RHSA-2021:2865- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Updated
- 2026-11-02
OSVRHSA-2021:4626
Red Hat Security Advisory: RHV Manager (ovirt-engine) security update [ovirt-4.4.9]
- Record
RHSA-2021:4626- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Updated
- 2026-11-02
OSVUBUNTU-CVE-2020-7733
The package ua-parser-js before 0.7.22 are vulnerable to Regular Expression Denial of Service (ReDoS) via the regex for Redmi Phones and Mi Pad Tablets UA.
- Record
UBUNTU-CVE-2020-7733- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Updated
- 2026-11-02
OSVCLSA-2026-1774311649 No score
TuxCare security update for ua-parser-js (3 CVEs)
TuxCare rebuilt ua-parser-js to address 3 CVEs. Fixed in 0.7.21-tuxcare.1.
- Record
CLSA-2026-1774311649- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
ua-parser-jsnpm |
before 0.7.22 | 0.7.22 |
ua-parser-jsTuxCare:npm From an advisory covering 3 CVEs |
0.7.21-tuxcare.0 up to 0.7.21-tuxcare.1, plus listed versions 0.7.21 |
0.7.21-tuxcare.1 |
ovirt-engine-ui-extensionsRed Hat:rhev_manager:4.4:el8 From an advisory covering 4 CVEs |
before 0:1.2.7-1.el8ev | 0:1.2.7-1.el8ev |
ovirt-web-uiRed Hat:rhev_manager:4.4:el8 From an advisory covering 2 CVEs |
before 0:1.7.2-1.el8ev | 0:1.7.2-1.el8ev |
node-ua-parser-jsUbuntu:18.04:LTS |
All versions, plus listed versions 0.7.14-1 |
None known |
node-ua-parser-jsUbuntu:20.04:LTS |
All versions, plus listed versions 0.7.14-1 |
None known |
node-ua-parser-jsUbuntu:22.04:LTS |
All versions, plus listed versions 0.7.24+ds-10.7.24+ds-20.7.31+ds+~0.7.36-1 |
None known |
node-ua-parser-jsUbuntu:24.04:LTS |
All versions, plus listed versions 0.8.1+ds+~0.7.36-3 |
None known |
node-ua-parser-jsUbuntu:25.10 |
All versions, plus listed versions 0.8.1+ds+~0.7.36-3 |
None known |
node-ua-parser-jsUbuntu:26.10 |
All versions, plus listed versions 0.8.1+ds+~0.7.36-32.0.10+ds+~cs0.3.5-1 |
None known |
node-ua-parser-jsUbuntu:26.04:LTS |
All versions, plus listed versions 0.8.1+ds+~0.7.36-3 |
None known |
History
| Recorded | Changed | Sources |
|---|---|---|
| affected, facts | ||
| aliases, products, published | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2020-7733 is a high vulnerability (CVSS 7.5) in Ua-parser-js Project Ua-parser-js, published September 16, 2020. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 4.48%, the 91st percentile. Fixed in ua-parser-js 0.7.22.
References
snyk.io/vuln/SNYK-JS-UAPARSERJS-610226
github.com/faisalman/ua-parser-js/commit/233d3bae22a795153a7e6638887ce159c63e557d
oracle.com//security-alerts/cpujul2021.html
nvd.nist.gov/vuln/detail/CVE-2020-7733
Show 62 moreShow less
access.redhat.com/errata/RHSA-2021:2865
bugzilla.redhat.com/show_bug.cgi?id=1752996
security.access.redhat.com/data/csaf/v2/advisories/2021/rhsa-2021_2865.json
cve.org/CVERecord?id=CVE-2020-7733
ubuntu.com/security/CVE-2020-7733