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CVE-2026-42268

8.2 high SSVC exploitation: poc Analyzed

ModSecurity is an open source, cross platform web application firewall (WAF) engine for Apache, IIS and Nginx. From 3.0.0 to before 3.0.15, there is an unhandled exception (std::out_of_range) caused by unsigned integer underflow in libmodsecurity3 if the user (administrator) uses a rule any of @verifySSN, @verifyCPF, or @verifySVNR. This vulnerability is fixed in 3.0.15.

Fix

Patch, vendor advisory and mitigation references on NVD 2

Every line above is quoted from NVD, CISA, Microsoft, the vendor's own advisory or DISA; nothing is generated.

Change history 1

  1. First seenCVSS 8.2 · owaspNVD modified 2026-10-26 14:10

Affected (CPE criteria) 1

  • cpe:2.3:a:owasp:modsecurity:*:*:*:*:*:*:*:*

References 2