libtiff up to 4.7.1 libtiff/tif_open.c null pointer dereference

CVSS Meta Temp Score
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CTI Interest Score
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4.3$0-$5k0.00

Summaryinfo

A vulnerability identified as problematic has been detected in libtiff up to 4.7.1. The affected element is an unknown function of the file libtiff/tif_open.c. This manipulation causes null pointer dereference. The identification of this vulnerability is CVE-2025-61143. It is possible to initiate the attack remotely. There is no exploit available.

Detailsinfo

A vulnerability classified as problematic was found in libtiff up to 4.7.1. Affected by this vulnerability is some unknown functionality of the file libtiff/tif_open.c. The manipulation with an unknown input leads to a null pointer dereference vulnerability. The CWE definition for the vulnerability is CWE-476. A NULL pointer dereference occurs when the application dereferences a pointer that it expects to be valid, but is NULL, typically causing a crash or exit. As an impact it is known to affect availability. The summary by CVE is:

libtiff up to v4.7.1 was discovered to contain a NULL pointer dereference via the component libtiff/tif_open.c.

It is possible to read the advisory at gitlab.com. This vulnerability is known as CVE-2025-61143 since 09/26/2025. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. It demands that the victim is doing some kind of user interaction. Technical details of the vulnerability are known, but there is no available exploit.

The vulnerability scanner Nessus provides a plugin with the ID 299824 (Linux Distros Unpatched Vulnerability : CVE-2025-61143), which helps to determine the existence of the flaw in a target environment.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the databases at Tenable (299824) and CERT Bund (WID-SEC-2026-0482). Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Affected

  • Amazon Linux 2
  • Ubuntu Linux
  • SUSE Linux
  • Open Source libTIFF

Productinfo

Type

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.3
VulDB Meta Temp Score: 4.3

VulDB Base Score: 4.3
VulDB Temp Score: 4.3
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Null pointer dereference
CWE: CWE-476 / CWE-404
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Nessus ID: 299824
Nessus Name: Linux Distros Unpatched Vulnerability : CVE-2025-61143

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔒

Timelineinfo

09/26/2025 CVE reserved
02/23/2026 +150 days Advisory disclosed
02/23/2026 +0 days VulDB entry created
04/17/2026 +53 days VulDB entry last update

Sourcesinfo

Product: libtiff.org

Advisory: gitlab.com
Status: Confirmed

CVE: CVE-2025-61143 (🔒)
GCVE (CVE): GCVE-0-2025-61143
GCVE (VulDB): GCVE-100-347419
CERT Bund: WID-SEC-2026-0482 - libTIFF: Mehrere Schwachstellen ermöglichen Denial of Service

Entryinfo

Created: 02/23/2026 19:57
Updated: 04/17/2026 11:17
Changes: 02/23/2026 19:57 (53), 02/24/2026 09:56 (2), 04/17/2026 11:17 (7)
Complete: 🔍
Cache ID: 216::103

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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