CVE-2026-58379

Code execution via undersized PSP row buffer

Published Jul 3, 2026 · Updated Jul 3, 2026

Heap buffer overflow in GIMP's PSP parser on Red Hat Enterprise Linux 9 allows remote attackers to execute code via a crafted PSP image. In read_channel_data() in file-psp.c, low-bit-depth rows allocate packed-width storage but fread() copies one byte per pixel into that smaller heap buffer. Exploitation requires a user to open the image and can execute code in the GIMP process or crash it.

CVSS severity7.3
High
EPSS probability0.23%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Heap buffer overflow in GIMP's PSP parser on Red Hat Enterprise Linux 9 allows remote attackers to execute code via a crafted PSP image. In read_channel_data() in file-psp.c, low-bit-depth rows allocate packed-width storage but fread() copies one byte per pixel into that smaller heap buffer. Exploitation requires a user to open the image and can execute code in the GIMP process or crash it.

The record

CVE
CVE-2026-58379
Published
Jul 3, 2026
Updated
Jul 3, 2026
Vendor
389 Directory Server
Product
Red Hat Enterprise Linux 9
Classifications
CWE-122, T1203
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Jul 3, 2026CVE publishedPublication date reported by the CVE source.
  2. Jul 3, 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 privilegesauthenticated

What is affected?

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

Published CVSS scores

7.3Red Hat, Inc.CVSS:3.1/AV:L/AC:L/PR:L/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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-122Heap-based Buffer Overflow
T1203Exploitation for Client Execution

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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