CVE-2026-92399CWE-119CWE-122

CVE-2026-92399

High · published September 16, 2026

CVSS v3.1
7.3
EPSS
1%
Percentile
52.2
In the wild
Unconfirmed
What it is

A vulnerability was determined in GPAC 26.07.0. This affects the function rmt_client_handle_ws_frame of the file src/utils/rmt_ws.c of the component WebSocket Handler. Executing a manipulation of the argument payload_size can lead to heap-based buffer overflow. It is possible to launch the attack remotely. The exploit has been publicly disclosed and may be utilized. Upgrading to version abi-16.26 is able to mitigate this issue. This patch is called 37bccbb30cf53a0e1a084cea9a1ce422b3ddfe12. Upgrading the affected component is recommended.

The record
Technical detail
CVSS v3.1
7.3 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
CVSS v4.0
6.9 · CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P
EPSS
0.00690 · 52.2th percentile
Weaknesses
CWE-119 · Improper Restriction of Operations within the Bounds of a Memory Buffer; CWE-122 · Heap-based Buffer Overflow
Published
2026-09-16T21:18Z
References (9)
https://github.com/gpac/gpac/ · [email protected]https://github.com/gpac/gpac/commit/37bccbb30cf53a0e1a084cea9a1ce422b3ddfe12 · [email protected]https://github.com/gpac/gpac/issues/3860 · [email protected]https://github.com/gpac/gpac/releases/tag/abi-16.26 · [email protected]https://github.com/user-attachments/files/31208030/poc_rmt_ws_malicious_frame.py · [email protected]https://vuldb.com/cve/CVE-2026-92399 · [email protected]https://vuldb.com/submit/940250 · [email protected]https://vuldb.com/vuln/405551 · [email protected]https://vuldb.com/vuln/405551/cti · [email protected]
EPSS history
Timeline
  • 18 SEP 04:02Z
    EPSS moved — → 1%
    epss
  • 16 SEP 16:15Z
    GPAC WebSocket rmt_ws.c rmt_client_handle_ws_frame heap-based overflow
    cvelistv5