CVE-2026-92399: GPAC
Affects gpacSource GCVE Database
Public exploit available · CVSS 6.9 Medium.
Data as of 8 Nov 2026, 23:24 UTC
- EPSS
- 0.6% chance of exploitation in 30 days – higher than 53% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
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:PExploitation evidence
Disclosed: evidence found.
CVE published 16 Sep 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: evidence found.
CVSS exploit maturity: proof of concept public
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), CVSS vector, the Metasploit, Exploit-DB and nuclei-templates index as of 8 Nov 2026.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
Ubuntu Pro 24.04 LTSgpacpkg:deb/ubuntu/gpac?arch=source&distro=esm-apps/nobleOther threats | Affected
| Fixed in– |
Ubuntu Pro 22.04 LTSgpacpkg:deb/ubuntu/gpac?arch=source&distro=esm-apps/jammyOther threats | Affected
| Fixed in– |
Ubuntu Pro 20.04 LTSgpacpkg:deb/ubuntu/gpac?arch=source&distro=esm-apps/focalOther threats | Affected
| Fixed in– |
Ubuntu Pro 18.04 LTSgpacpkg:deb/ubuntu/gpac?arch=source&distro=esm-apps/bionicOther threats | Affected
| Fixed in– |
Ubuntu Pro 16.04 LTSgpacpkg:deb/ubuntu/gpac?arch=source&distro=esm-apps/xenialOther threats | Affected
| Fixed in– |
Ubuntu Pro 14.04 LTSgpacpkg:deb/ubuntu/gpac?arch=source&distro=esm-infra-legacy/trustyOther threats | Affected
| Fixed in– |
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
AI-suggested
Upgrade the affected GPAC component to version abi-16.26 or later, which contains the official patch (commit 37bccbb30cf53a0e1a084cea9a1ce422b3ddfe12) that mitigates this vulnerability. No other mitigation steps are indicated by the vendor advisory.
Description
A heap-based buffer overflow vulnerability exists in GPAC 26.07.0 within the WebSocket Handler component's rmt_client_handle_ws_frame function. This vulnerability can be triggered remotely by manipulating the payload_size argument. Exploit code has been publicly disclosed. Upgrading to version abi-16.26 mitigates the issue.