cvedb.io
CVE-2026-40892
CRITICAL · CVSS 9.8
EPSS exploitation probability: 0%
Published 2026-04-21T21:16:44.153 · Last modified 2026-06-17T10:45:50.253

Summary

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.

Affected products

pjsip — pjsip

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References

This product uses data from the NVD API but is not endorsed or certified by the NVD. Informational only; not professional security advice.