CVE-2026-92399

GPAC WebSocket rmt_ws.c rmt_client_handle_ws_frame heap-based overflow

HIGH
7.3
CVSS Score
Published: September 16, 2026 at 04:15 PM UTC
Updated: September 18, 2026 at 06:18 PM UTC
1 product affected across 1 vendorGpac

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Severity
HIGH7.3
Exploit prediction
EPSS 0.7%
SSVC
PoC

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Vendor states this is fixed in abi-16.26 (unaffected)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

References (9)

VDB EntryTechnical Description
Source: cverecord
https://vuldb.com/vuln/405551
SignaturePermissions Required
Source: cverecord
https://vuldb.com/vuln/405551/cti
Third Party Advisory
Source: cverecord
https://vuldb.com/cve/CVE-2026-92399
Third Party Advisory
Source: cverecord
https://vuldb.com/submit/940250
Issue Tracking
Source: cverecord
https://github.com/gpac/gpac/issues/3860

SSVC — Action Prioritization

SSVCPoCAutomatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7.3HIGHVulDB
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-122CWE-119

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