CVE-2020-7793

Name: CVE-2020-7793
Creator: NVD / NIST
Published: 2020-12-11T14:15:11.283+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.5/10EPSS 3.88%

Last modified Jun 17, 2026

CVE-2020-7793 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. The package ua-parser-js before 0.7.23 are vulnerable to Regular Expression Denial of Service (ReDoS) in multiple regexes (see linked commit for more info).. EPSS estimates a 3.88% chance of exploitation in the next 30 days.

Description

The package ua-parser-js before 0.7.23 are vulnerable to Regular Expression Denial of Service (ReDoS) in multiple regexes (see linked commit for more info).

Metrics

CVSS 3.1

7.5/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS Probability

3.88%

88.9th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

Vendor	Product	Versions
Ua-Parser-Js Project	Ua-Parser-Js	< 0.7.23
Siemens	Sinec Ins	< 1.0
Siemens	Sinec Ins	1.0

References

https://cert-portal.siemens.com/productcert/pdf/ssa-637483.pdfThird Party Advisory
https://github.com/faisalman/ua-parser-js/commit/6d1f26df051ba681463ef109d36c9cf0f7e32b18Patch, Third Party Advisory
https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSBOWERGITHUBFAISALMAN-1050388Exploit, Third Party Advisory
https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-1050387Exploit, Third Party Advisory
https://snyk.io/vuln/SNYK-JS-UAPARSERJS-1023599Exploit, Third Party Advisory
https://cert-portal.siemens.com/productcert/pdf/ssa-637483.pdfThird Party Advisory
https://github.com/faisalman/ua-parser-js/commit/6d1f26df051ba681463ef109d36c9cf0f7e32b18Patch, Third Party Advisory
https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSBOWERGITHUBFAISALMAN-1050388Exploit, Third Party Advisory
https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-1050387Exploit, Third Party Advisory
https://snyk.io/vuln/SNYK-JS-UAPARSERJS-1023599Exploit, Third Party Advisory

Timeline

Published: Dec 11, 2020
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-7793?

The package ua-parser-js before 0.7.23 are vulnerable to Regular Expression Denial of Service (ReDoS) in multiple regexes (see linked commit for more info).

How severe is CVE-2020-7793?

CVE-2020-7793 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 3.88% probability of exploitation in the next 30 days.

How do I fix CVE-2020-7793?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2020-7793?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST