CVE-2021-30022Public exploit

Process crash via unchecked negative PPS identifier

Published Apr 19, 2021 · Updated Mar 5, 2025

Integer overflow in GPAC 0.5.2 through 1.0.1 allows context-dependent attackers to crash the process via a crafted AVC stream. The gf_avc_read_pps_bs_internal parser checks only whether the signed pps_id is at least 255, then uses a negative value to index the 255-entry avc->pps array and writes through the resulting out-of-bounds pointer. Processing the crafted media is required; the established consequence is a process crash, while the upstream report's arbitrary-address-write claim is not confirmed by the CVE record.

CVSS severity5.5
Medium
EPSS probability1.07%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Integer overflow in GPAC 0.5.2 through 1.0.1 allows context-dependent attackers to crash the process via a crafted AVC stream. The gf_avc_read_pps_bs_internal parser checks only whether the signed pps_id is at least 255, then uses a negative value to index the 255-entry avc->pps array and writes through the resulting out-of-bounds pointer. Processing the crafted media is required; the established consequence is a process crash, while the upstream report's arbitrary-address-write claim is not confirmed by the CVE record.

The record

CVE
CVE-2021-30022
Published
Apr 19, 2021
Updated
Mar 5, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-190, T1499.004
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Apr 19, 2021CVE publishedPublication date reported by the CVE source.
  2. Mar 5, 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

5.5NIST NVDCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
4.3NIST NVDAV:N/AC:M/Au:N/C:N/I:N/A:P

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 exploitPublished

Weakness, pattern, technique

CWE-190Integer Overflow or Wraparound
T1499.004Application or System Exploitation

Public exploit references

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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