CVE-2026-62439

Code execution via overflowing pixel-buffer allocation

Published Oct 16, 2026 · Updated Oct 16, 2026

Integer overflow in GIMP's file-pvr plug-in allows attackers to execute code or crash the application via crafted PVR files. The pvr_decode_compressed() function multiplies image width, height, and component count without overflow checks, allocating an undersized heap buffer. Exploitation requires opening or previewing the crafted file; the reported consequences are heap corruption, application crashes, and arbitrary code execution.

CVSS severity7.8
High
EPSS probability0.18%
Next 30 days · Oct 19, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Integer overflow in GIMP's file-pvr plug-in allows attackers to execute code or crash the application via crafted PVR files. The pvr_decode_compressed() function multiplies image width, height, and component count without overflow checks, allocating an undersized heap buffer. Exploitation requires opening or previewing the crafted file; the reported consequences are heap corruption, application crashes, and arbitrary code execution.

The record

CVE
CVE-2026-62439
Published
Oct 16, 2026
Updated
Oct 16, 2026
Vendor
libuser Project
Product
Red Hat Enterprise Linux 9
Classifications
T1203
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Oct 16, 2026CVE publishedPublication date reported by the CVE source.
  2. Oct 16, 2026Record 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 versions are unavailable in this record. Check the vendor advisory for version and patch details.

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

libuser Project · Red Hat Enterprise Linux 9Affected versions are unavailable in this record.
libuser Project · Red Hat Enterprise Linux 8Affected versions are unavailable in this record.
libuser Project · Red Hat Enterprise Linux 10Affected versions are unavailable in this record.
libuser Project · Red Hat Enterprise Linux 7Affected versions are unavailable in this record.

Published CVSS scores

6.1SUSECVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H
6.8SUSECVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:L/VI:N/VA:H/SC:N/SI:N/SA:N
7.8Amazon LinuxCVSS: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.

Activity data is delayed. The latest report is Sep 28, 2026.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 22, 2026Sep 28, 2026
Latest reporting daySep 28, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

T1203Exploitation for Client Execution

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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