CVE-2026-112060
librtmp (RTMPDump) through 2.6 Heap Out-of-Bounds Write via AMF3_Decode
RTMPDump librtmp
CVSS
6.1MediumExploitationPublic exploit codeCISA's assessment says proof of concept code is public, assessed 19 Oct 2026. Not in the KEV catalogCISA via CVE List
Exploit odds (EPSS)0.18%Chance of exploitation activity in the next 30 days, higher than 6% of CVEs. Scored 23 Oct 2026FIRST EPSS
Fixed inNone listedNo source names a fixed version. Check the vendor advisory below
What fixes it
No source in this snapshot names a fixed version. The vendor advisories under References are the place to check.
Description
librtmp in RTMPDump through 2.6 contains an out-of-bounds read and heap out-of-bounds write vulnerability because AMF3_Decode 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.
Text from CVE List
Affected versions 1
- librtmpaffected: all versions through 2.6CVE List
References 4
- hackmd.io/@haindpwn/librtmp-amf3-decode-and-strict-array-oobAdvisoryvia CVE List
- vulncheck.com/advisories/librtmp-rtmpdump-through-2.6-heap-out-of-bounds-write-via-amf3-decodeAdvisoryvia CVE List
- git.ffmpeg.org/gitweb/rtmpdump.git/blob/138fdb258d9fc26f1843fd1b891180416c9dc575:/librtmp/amf.cReferencevia CVE List
- rtmpdump.mplayerhq.hu/Referencevia CVE List