CVE-2026-5201Network attack vector

Application crashes via undersized JPEG pixel buffer

Published Mar 31, 2026 · Updated Mar 31, 2026

Heap-based buffer overflow in gdk-pixbuf on affected Red Hat Enterprise Linux releases allows remote attackers to crash image-processing applications. The gdk_pixbuf__jpeg_image_load() function allocates too little pixel storage after failing to reject an unsupported color-component count, so libjpeg writes past the heap buffer. Automatic thumbnail generation can reach the loader without user interaction; the confirmed consequence is an application crash, not reliable code execution.

CVSS severity7.5
High
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

Heap-based buffer overflow in gdk-pixbuf on affected Red Hat Enterprise Linux releases allows remote attackers to crash image-processing applications. The gdk_pixbuf__jpeg_image_load() function allocates too little pixel storage after failing to reject an unsupported color-component count, so libjpeg writes past the heap buffer. Automatic thumbnail generation can reach the loader without user interaction; the confirmed consequence is an application crash, not reliable code execution.

The record

CVE
CVE-2026-5201
Published
Mar 31, 2026
Updated
Mar 31, 2026
Vendor
389 Directory Server
Product
Red Hat Enterprise Linux 10
Classifications
CWE-122, T1499.004
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Mar 31, 2026CVE publishedPublication date reported by the CVE source.
  2. Mar 31, 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 vectornetwork
Required privilegesunauthenticated

What is affected?

389 Directory Server · Red Hat Enterprise Linux 10Affected versions are unavailable in this record.
389 Directory Server · Red Hat Enterprise Linux 7Affected versions are unavailable in this record.
389 Directory Server · Red Hat Enterprise Linux 9Affected versions are unavailable in this record.
389 Directory Server · Red Hat Enterprise Linux 8Affected versions are unavailable in this record.

Published CVSS scores

7.5Red Hat, Inc.CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/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.

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

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-122Heap-based Buffer Overflow
T1499.004Application or System Exploitation

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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