librtmp in RTMPDump through 2.6 contains an out-of-bounds read and heap out-of-bounds write vulnerability because AMF3Decode ignores AMF3…
CVE-2026-112060
librtmp in RTMPDump through 2.6 contains an out-of-bounds read and heap out-of-bounds write vulnerability because AMF3Decode ignores AMF3 property decode failures. Malicious RTMP servers or man-in-the-middle attackers can send oversized AMF3 string lengths, and with the token option DecodeTEA corrupts heap memory and leaks heap bytes.
Assessment
- CVSS
- 6.1 (v4.0)
- Severity
- Medium
- EPSS
- 0.18% chance of exploitation in the next 30 days
- Known exploited
- Not listed in CISA KEV
- Exploit availability
- Nothing found in Exploit-DB, Metasploit, Nuclei or public PoC repositories
- Published
- 18 October 2026
- Last updated
- 6 November 2026
- Assigner
- VulnCheck
CVSS vectorCVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:L/VI:L/VA:H/SC:N/SI:N/SA:N
At the source
References
- https://hackmd.io/@haindpwn/librtmp-amf3-decode-and-strict-array-oob
- https://git.ffmpeg.org/gitweb/rtmpdump.git/blob/138fdb258d9fc26f1843fd1b891180416c9dc575:/librtmp/amf.c
- https://rtmpdump.mplayerhq.hu/
- https://www.vulncheck.com/advisories/librtmp-rtmpdump-through-2.6-heap-out-of-bounds-write-via-amf3-decode
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