CVE-2025-49140 json
Pion Interceptor's improper RTP padding handling allows remote crash for SFU users (DoS)
published 2025-06-09 17 mo ago modified 2026-09-10 1 mo ago also GHSA-f26w-gh5m-qq77 , GO-2025-3748 , EUVD-2025-17569
- cvss
- 7.5
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.5%
- EPSS 0.5% chance of exploitation in 30 days, percentile 44%
- public exploits
- 0
- none known
Summary
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.
Patch / fix
- go github.com/pion/interceptor 0.1.39
- govulncheck-vulndb openSUSE Tumbleweed 0.0.20250612T141001-1.1
opensuse advisories openSUSE-SU-2025:15225-1
- github.com/pion/interceptor@fa5b35e commit
- github.com/pion/interceptor#338 pull request
CISA SSVC
- Exploitation
- none
- Automatable
- yes
- Technical impact
- partial
- Assessed
- 16 mo ago
Exploit prediction
0.51% chance of exploitation in the next 30 days, higher than 44% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
| GitHub | 3.1 | 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| go | github.com/pion/interceptor | >=0.1.36, <0.1.39 |
0.1.39 |
Affected products
- pion interceptor
Classification
- Weakness
-
- CWE-770 Allocation of Resources Without Limits or Throttling
References
-
github.com
/pion/interceptor/pull/338
web, patch
-
github.com
/pion/interceptor/commit/fa5b35ea867389cec33a9c82fffbd459ca8958e5
web, patch
-
github.com
/pion/interceptor/security/advisories/GHSA-f26w-gh5m-qq77
web, advisory
-
github.com
/pion/webrtc/issues/3148
web
-
nvd.nist.gov
/vuln/detail/CVE-2025-49140
advisory
-
github.com
/pion/interceptor
package
Sources
- CVE List CVE-2025-49140
- GitHub Advisory GHSA-f26w-gh5m-qq77
- NVD CVE-2025-49140
- OSV GO-2025-3748
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.