MEDIUM 5.7 Microsoft
CVE-2026-89157
PCRE2 before 10.48, on 32-bit platforms, has a pcre2_pattern_convert out-of-bounds write when an attacker can provide a large pattern.
Microsoft Security Update 2026-Sep: PCRE2 before 10.48, on 32-bit platforms, has a pcre2_pattern_convert out-of-bounds write when an attacker can provide a large pattern.
Affected Products
- azl3 pcre2 10.42-3 on Azure Linux 3.0
- azl3 nmap 7.95-5 on Azure Linux 3.0
References
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-89157
- https://nvd.nist.gov/vuln/detail/CVE-2026-89157
This medium severity vulnerability with a CVSS score of 5.7 was published on 2026-09-08 via Microsoft. Affected: azl3 pcre2 10.42-3 on Azure Linux 3.0, azl3 nmap 7.95-5 on Azure Linux 3.0.
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