CVE-2026-25795
Description
A flaw was found in ImageMagick, a widely used image editing and manipulation software. This vulnerability arises from a NULL pointer dereference that occurs when the software attempts to create temporary files and fails. An attacker could exploit this issue to trigger an application crash, leading to a Denial of Service (DoS).
Statement
This MODERATE impact flaw in ImageMagick can lead to a denial of service due to a NULL pointer dereference when processing a crafted SFW image file. The vulnerability occurs if temporary file creation fails during image processing. Red Hat Enterprise Linux 6 ELS and 7 ELS are affected by this flaw.
Mitigation
To reduce the risk associated with this vulnerability, avoid processing untrusted SFW image files with ImageMagick. If ImageMagick is deployed in environments where it processes untrusted input, consider implementing sandboxing or resource limits for ImageMagick processes to contain potential crashes and limit impact.
Common Vulnerability Scoring System (CVSS) Score Details
Info alert:Important note
CVSS scores for open source components depend on vendor-specific factors (e.g. version or build chain). Therefore, Red Hat's score and impact rating can be different from NVD and other vendors. Red Hat remains the authoritative CVE Naming Authority (CNA) source for its products and services (see Red Hat classifications).
The following CVSS metrics and score provided are preliminary and subject to review.
CVSS v3 Score Breakdown
| Red Hat | NVD | cve.org | |
|---|---|---|---|
| Base Score | 5.3 | 7.5 | N/A |
| Attack Vector | Network | Network | N/A |
| Attack Complexity | Low | Low | N/A |
| Privileges Required | None | None | N/A |
| User Interaction | None | None | N/A |
| Scope | Unchanged | Unchanged | N/A |
| Confidentiality | None | None | N/A |
| Integrity Impact | None | None | N/A |
| Availability Impact | Low | High | N/A |
Vector
Red Hat: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
NVD: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Understanding the Weakness (CWE)
Availability
Technical Impact: DoS: Crash, Exit, or Restart
NULL pointer dereferences usually result in the failure of the process unless exception handling (on some platforms) is available and implemented. Even when exception handling is being used, it can still be very difficult to return the software to a safe state of operation.
Integrity,Confidentiality
Technical Impact: Execute Unauthorized Code or Commands; Read Memory; Modify Memory
In rare circumstances, when NULL is equivalent to the 0x0 memory address and privileged code can access it, then writing or reading memory is possible, which may lead to code execution.
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