CVE-2026-112061
librtmp (RTMPDump) through 2.6 Heap Out-of-Bounds Read via AMFProp_Decode
- State
- Published
- Severity
- 5.3 Medium
- Published
- Oct 18, 2026
- Updated
- Oct 19, 2026
- Reserved
- Oct 18, 2026
Description
librtmp (RTMPDump) through 2.6 contains a heap out-of-bounds read vulnerability in AMFProp_Decode that reads an AMF0 strict-array element count before checking that four bytes remain. A malicious RTMP server or man in the middle can send an AMF0 body ending with a strict-array type byte and fewer than four trailing bytes to crash the client.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 5.3 Medium | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N | VulnCheck |
| 3.1 | 4.3 Medium | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L | VulnCheck |
Weaknesses
- CWE-125 Out-of-bounds Read
Affected Products
| Product | Versions |
|---|---|
librtmpRTMPDump |
|
References
- https://hackmd.io/@haindpwn/librtmp-amf3-decode-and-strict-array-oobthird-party-advisory
- https://git.ffmpeg.org/gitweb/rtmpdump.git/blob/138fdb258d9fc26f1843fd1b891180416c9dc575:/librtmp/amf.ctechnical-description
- https://rtmpdump.mplayerhq.hu/product
- VulnCheck Advisory: librtmp (RTMPDump) through 2.6 Heap Out-of-Bounds Read via AMFProp_Decodethird-party-advisory
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