What’s Vulnerable › Vulnerabilities
CVE-2020-7793: Regular Expression Denial of Service (ReDoS)
- Severity: high (CVSS 7.5 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 3.9% probability of exploitation in the next 30 days
- Public exploit or detection template: yes
- Published: 2020-12-11 · updated 2026-06-17
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).
Affected products
- Siemens SINEC INS: before 1.0; 1.0, 1.0-sp1 — fixed in 1.0
- ua-parser-js: before 0.7.23 — fixed in 0.7.23
- Npm Ua-Parser-Js: before 0.7.23 — fixed in 0.7.23
How to fix
Upgrade to a fixed version: Siemens SINEC INS 1.0; ua-parser-js 0.7.23; Npm Ua-Parser-Js 0.7.23. Check the vendor advisory for mitigations.
References
- https://cert-portal.siemens.com/productcert/pdf/ssa-637483.pdf
- https://github.com/faisalman/ua-parser-js/commit/6d1f26df051ba681463ef109d36c9cf0f7e32b18
- https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSBOWERGITHUBFAISALMAN-1050388
- https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-1050387
- https://snyk.io/vuln/SNYK-JS-UAPARSERJS-1023599
- https://cert-portal.siemens.com/productcert/pdf/ssa-637483.pdf
- https://github.com/faisalman/ua-parser-js/commit/6d1f26df051ba681463ef109d36c9cf0f7e32b18
- https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSBOWERGITHUBFAISALMAN-1050388
- https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-1050387
- https://snyk.io/vuln/SNYK-JS-UAPARSERJS-1023599
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