CVE-2023-23143

Memory corruption via unchecked AVC parameter IDs

Published Jan 20, 2023 · Updated Apr 3, 2025

Buffer overflow in GPAC 2.3-DEV-rev1-g4669ba229-master allows attackers to corrupt memory through a crafted AVC bitstream. The avc_parse_slice function accepts a picture parameter set ID of 255 or a sequence parameter set ID above 31, then uses it to index fixed parser arrays. Processing attacker-controlled media requires user interaction, and the resulting out-of-bounds access corrupts memory; reliable code execution is not established publicly.

CVSS severity7.8
High
EPSS probability0.40%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Buffer overflow in GPAC 2.3-DEV-rev1-g4669ba229-master allows attackers to corrupt memory through a crafted AVC bitstream. The avc_parse_slice function accepts a picture parameter set ID of 255 or a sequence parameter set ID above 31, then uses it to index fixed parser arrays. Processing attacker-controlled media requires user interaction, and the resulting out-of-bounds access corrupts memory; reliable code execution is not established publicly.

The record

CVE
CVE-2023-23143
Published
Jan 20, 2023
Updated
Apr 3, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-120, T1204.002
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jan 20, 2023CVE publishedPublication date reported by the CVE source.
  2. Apr 3, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

7.8CISACVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-120Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
T1204.002User Execution: Malicious File

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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