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GPAC CVE-2026-93331

| EUVDEUVD-2026-82639 MEDIUM
Out-of-bounds Read (CWE-125)
2026-09-18 VulDB GHSA-rfh4-j4pw-9cvw
Buffer Overflow Information Disclosure Gpac N A
6.9
CVSS 4.0 · Vendor: VulDB
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Severity by source

Vendor (VulDB) PRIMARY
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:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
vuln.today AI
6.5 MEDIUM

Network-reachable RTP input with no auth (AV:N/PR:N); an out-of-bounds read yields limited disclosure and a crash (C:L/A:L) but no integrity impact (I:N).

3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L
4.0 AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:L/SC:N/SI:N/SA:N

Primary rating from Vendor (VulDB).

CVSS VectorVendor: VulDB

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
X

Lifecycle Timeline

1
Analysis Generated
Sep 18, 2026 - 02:20 vuln.today

DescriptionCVE.org

A vulnerability was identified in GPAC 26.08-DEV. This vulnerability affects the function gf_rtp_parse_ttxt of the file src/ietf/rtp_depacketizer.c of the component RTP Depacketizer. Such manipulation of the argument size leads to out-of-bounds read. It is possible to launch the attack remotely. Upgrading to version abi-16.26 is able to resolve this issue. The name of the patch is 6bb0f64b4d1039c0fecd14ee2c1ee861d8661a68. The affected component should be upgraded.

AnalysisAI

An out-of-bounds read in GPAC's RTP depacketizer lets unauthenticated remote attackers crash or partially disclose memory by delivering a crafted 3GPP timed-text (TTXT) RTP payload with an oversized advertised length. The flaw lives in gf_rtp_parse_ttxt() in src/ietf/rtp_depacketizer.c and affects GPAC 26.08-DEV and earlier builds prior to abi-16.26; exploitation requires the target to be acting as an RTP receiver/depacketizer rather than simply parsing a local file. …

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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata

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Vulnerability AssessmentAI

Exploitation Requires the target GPAC instance to act as an RTP receiver/depacketizer processing a 3GPP timed-text (TTXT) RTP payload, so the attacker must be able to deliver a crafted RTP stream (with an oversized advertised ttu_len) into that session. … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment This is a genuine but moderate-severity memory-safety flaw, not a top-tier priority. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in.
Exploit Scenario Full exploit scenario with step-by-step reproduction available after sign-in.
Remediation Vendor-released patch: upgrade to GPAC abi-16.26, which contains the fix, or cherry-pick commit 6bb0f64b4d1039c0fecd14ee2c1ee861d8661a68 (reference: https://github.com/gpac/gpac/commit/6bb0f64b4d1039c0fecd14ee2c1ee861d8661a68 and https://github.com/gpac/gpac/releases/tag/abi-16.26). … Detailed patch versions, workarounds, and compensating controls in full report.
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CVE-2026-93331 vulnerability details – vuln.today
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