CVE-2020-19751Network attack vector

Memory disclosure and process crash via descriptor over-read

Published Sep 7, 2021 · Updated Aug 4, 2024

Heap buffer over-read in GPAC 0.8.0 allows remote attackers to disclose memory or crash the process via malformed MPEG-4 descriptor data. The gf_odf_del_ipmp_tool function in odf_code.c accepts an invalid descriptor size, traverses beyond the allocated heap region, and frees an invalid address. No authentication or user interaction is required; exposure depends on untrusted descriptor data reaching GPAC's ODF parser.

CVSS severity9.1
Critical
EPSS probability1.30%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Heap buffer over-read in GPAC 0.8.0 allows remote attackers to disclose memory or crash the process via malformed MPEG-4 descriptor data. The gf_odf_del_ipmp_tool function in odf_code.c accepts an invalid descriptor size, traverses beyond the allocated heap region, and frees an invalid address. No authentication or user interaction is required; exposure depends on untrusted descriptor data reaching GPAC's ODF parser.

The record

CVE
CVE-2020-19751
Published
Sep 7, 2021
Updated
Aug 4, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-125
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Sep 7, 2021CVE publishedPublication date reported by the CVE source.
  2. Aug 4, 2024Record 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 vectornetwork
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

6.4NIST NVDAV:N/AC:L/Au:N/C:P/I:N/A:P
9.1NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

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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)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-125Out-of-bounds Read

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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