CVE-2025-61143
NULL Pointer Dereference in libtiff tif_open.c Causes Crash
Publication date: 2026-02-23
Last updated on: 2026-02-25
Assigner: MITRE
Description
Description
CVSS Scores
EPSS Scores
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Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| libtiff | libtiff | to 4.7.1 (exc) |
Helpful Resources
Exploitability
| CWE ID | Description |
|---|---|
| CWE-476 | The product dereferences a pointer that it expects to be valid but is NULL. |
Attack-Flow Graph
AI Powered Q&A
Can you explain this vulnerability to me?
CVE-2025-61143 affects the libtiff library, specifically versions up to and including v4.7.1. The vulnerability is a NULL pointer dereference located in the source file libtiff/tif_open.c.
This flaw can cause the application using libtiff to crash when processing TIFF files, due to the NULL pointer dereference.
How can this vulnerability impact me? :
The vulnerability can lead to application crashes or denial of service when processing TIFF files using the affected libtiff versions.
How does this vulnerability affect compliance with common standards and regulations (like GDPR, HIPAA)?:
I don't know
How can this vulnerability be detected on my network or system? Can you suggest some commands?
The vulnerability in libtiff up to version 4.7.1 is a NULL pointer dereference in the source file libtiff/tif_open.c, which can cause application crashes or denial of service when processing TIFF files.
Detection can involve monitoring for crashes or abnormal behavior in applications that process TIFF files using libtiff, especially when handling suspicious or malformed TIFF images.
Specific commands to detect this vulnerability are not provided in the available resources.
What immediate steps should I take to mitigate this vulnerability?
To mitigate this vulnerability, update libtiff to a version later than 4.7.1 where the NULL pointer dereference issue in tif_open.c has been fixed.
The fix was merged in the libtiff repository as part of merge request 755, which addresses the null pointer dereference.
Until an update can be applied, avoid processing untrusted or malformed TIFF files that could trigger the vulnerability.