CVE-2026-92399
GPAC WebSocket rmt_ws.c rmt_client_handle_ws_frame heap-based overflow
- State
- Published
- Severity
- 6.9 Medium
- Published
- Sep 16, 2026
- Updated
- Sep 18, 2026
- Reserved
- Sep 16, 2026
Description
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 6.9 Medium | 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 | VulDB |
| 3.1 | 7.3 High | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C | VulDB |
| 3.0 | 7.3 High | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C | VulDB |
| 2.0 | 7.5 High | AV:N/AC:L/Au:N/C:P/I:P/A:P/E:POC/RL:OF/RC:C | VulDB |
Weaknesses
Affected Products
| Product | Versions |
|---|---|
GPACn/a |
|
References
- VDB-405551 | GPAC WebSocket rmt_ws.c rmt_client_handle_ws_frame heap-based overflowvdb-entrytechnical-description
- VDB-405551 | CTI Indicators (IOB, IOC, IOA)signaturepermissions-required
- CVE-2026-92399 | CVE Analysis and Reportthird-party-advisory
- Submit #940250 | GPAC v26.07.0 (commit 2d7da22e) / master HEAD 6fed75df — fixed in 37bccbb Memory Corruption (CWE-122: Heap-based Buffer Overflow)third-party-advisory
- https://github.com/gpac/gpac/issues/3860issue-tracking
- https://github.com/user-attachments/files/31208030/poc_rmt_ws_malicious_frame.pyexploit
- https://github.com/gpac/gpac/commit/37bccbb30cf53a0e1a084cea9a1ce422b3ddfe12patch
- https://github.com/gpac/gpac/releases/tag/abi-16.26patch
- https://github.com/gpac/gpac/product
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