CVE-2025-49140 — Vulnetix

CVE-2025-49140 PUBLISHED CVSS 7.5 HIGH

Pion Interceptor is a framework for building RTP/RTCP communication software. Versions v0.1.36 through v0.1.38 contain a bug in a RTP packet factory that can be exploited to trigger a panic with Pion based SFU via crafted RTP packets, This only affect users that use pion/interceptor. Users should upgrade to v0.1.39 or later, which validates that: `padLen > 0 && padLen <= payloadLength` and return error on overflow, avoiding panic. If upgrading is not possible, apply the patch from the pull request manually or drop packets whose P-bit is set but whose padLen is zero or larger than the remaining payload.

EPSS 0.55% · 68.5th percentile

Risk Scores

CVSS 3.1

7.5

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS Score

0.55%

68.5th percentile

Affected Products

Vendor	Product	Versions
pion	interceptor	>= 0.1.36, < 0.1.39, >= 0.1.36, < 0.1.39
github.com	pion/interceptor	0.1.36, 0.1.36

Exploit Intelligence

CIRCL seen: CVE-2025-49140 (circl-sighting)
CIRCL seen: CVE-2025-49140 (circl-sighting)
CIRCL published-proof-of-concept: CVE-2025-49140 (circl-sighting)
https://github.com/pion/interceptor/security/advisories/GHSA-f26w-gh5m-qq77 (circl)
https://github.com/pion/webrtc/issues/3148 (circl)
https://github.com/pion/interceptor/pull/338 (circl)
https://github.com/pion/interceptor/commit/fa5b35ea867389cec33a9c82fffbd459ca8958e5 (circl)

Timeline

Jan 21, 1970 Security Advisory
Jun 9, 2025 CVE Published
Jun 9, 2025 Coalition ESS Score
Jun 9, 2025 PoC Published
Jun 9, 2025 PoC Published
Jun 9, 2025 PoC Published
Jun 10, 2025 CVE Updated
Jun 10, 2025 EPSS Score
Jun 12, 2025 Coalition ESS Score
Jun 20, 2025 EPSS Score
Jul 1, 2025 EPSS Score
Jul 11, 2025 EPSS Score

References

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