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CVE-2026-40892

8.1 high SSVC exploitation: none Analyzed
NVD · CVE.org

PJSIP is a free and open source multimedia communication library written in C. In 2.16 and earlier, a stack buffer overflow exists in pjsip_auth_create_digest2() in PJSIP when using pre-computed digest credentials (PJSIP_CRED_DATA_DIGEST). The function copies credential data using cred_info->data.slen as the length without an upper-bound check, which can overflow the fixed-size ha1 stack buffer (128 bytes) if data.slen exceeds the expected digest string length.

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 8.1 · pjsipNVD modified 2026-10-26 21:10

Affected (CPE criteria) 1

  • cpe:2.3:a:pjsip:pjsip:*:*:*:*:*:*:*:*

References 2