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Libtiff CVE-2025-61143

MEDIUM
NULL Pointer Dereference (CWE-476)
2026-02-23 cve@mitre.org
Null Pointer Dereference Red Hat Libtiff Suse
5.5
CVSS 3.1 · NVD
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Vulnerability Assessment

Weakness
CWE
CWE-476
OWASP Top 10:2025
A10:2025 - Mishandling of Exceptional Conditions
ASVS 5.0
V16 - Security Logging and Error Handling Null pointer safety, defensive checks
MITRE ATT&CK

1 technique across 1 tactic: Impact

The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up.

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Impact

CVSS 5.5 (MEDIUM). Attack vector: Local. Complexity: Low. Privileges required: None. User interaction: Required.
Exploit ScenarioDerived

An attacker could exploit this vulnerability to compromise the affected system.
This Month Plan within 30 days. Why: MEDIUM severity (CVSS 4.0-6.9).
Patch available 0.0% exploitation probability (EPSS)

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AnalysisAIv1 – Mar 12, 2026

libtiff up to v4.7.1 was discovered to contain a NULL pointer dereference via the component libtiff/tif_open.c. [CVSS 5.5 MEDIUM]

RemediationAI

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Affects your stack

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Technical ContextAI · show details

Classified as CWE-476 (NULL Pointer Dereference). Affects the the component of Libtiff. libtiff up to v4.7.1 was discovered to contain a NULL pointer dereference via the component libtiff/tif_open.c.

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  • Exploit and PoC references, threat intelligence from 22 sources
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Severity by source

NVD PRIMARY 5.5 MEDIUM
AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
SUSE MEDIUM
Red Hat 5.5 MEDIUM

Primary rating from NVD.

CVSS VectorNVD

Attack Vector
Local
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

Lifecycle Timeline

2
Patch released
Mar 23, 2026 - 14:45 nvd
Patch available
CVE Published
Feb 23, 2026 - 19:22 nvd
MEDIUM 5.5

DescriptionCVE.org

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

Executive ViewAI

Why It Matters

Organizations using libtiff up to v4.7.1 should be aware of moderate risk from CVE-2025-61143, a null pointer dereference vulnerability rated CVSS 5.5. Exploitation could compromise the security of affected deployments. A patch is available and should be applied during regular vulnerability management.

Business Impact: Low
Compensating Controls

Apply vendor patch. If patching is delayed: enable ASLR/DEP, apply network segmentation.

Threat Intelligence Overview

EPSS Score
0.0%
Top 98% exploitable
Data Quality
4 sources
Confidence: Medium
NVD CVE.org EPSS Vendor GitHub VulDB

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue
Severity MEDIUM
CISA KEV No
Public POC No
EPSS 0.0%
Patch available Yes
Active threat No
Deciding rule
MEDIUM severity (CVSS 4.0-6.9)
What every action level means
Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.
Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.
This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.
This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.
Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived
Defer
Exploitation· derived
None
System Exposure· derived
Small
Automatable· derived
No
Human Impact
Low

Priority Score

28
Low Medium High Critical
KEV: 0
EPSS: 0
CVSS: +28
PoC: 0
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

Null Pointer Dereference MEDIUM

A null pointer dereference occurs when a program attempts to access memory through a pointer that has been set to NULL (address 0x0).

Affected Products (CPE)CVE.org

cpe:2.3:a:libtiff:libtiff:*:*:*:*:*:*:*:*

More in Libtiff

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CVE-2012-4564 MEDIUM POC
6.8 Nov 11

ppm2tiff does not check the return value of the TIFFScanlineSize function, which allows remote attackers to cause a deni
CVE-2015-8668 CRITICAL POC
9.8 Jan 08

Heap-based buffer overflow in the PackBitsPreEncode function in tif_packbits.c in bmp2tiff in libtiff 4.0.6 and earlier

CVE-2015-7554 CRITICAL POC
9.8 Jan 08

The _TIFFVGetField function in tif_dir.c in libtiff 4.0.6 allows attackers to cause a denial of service (invalid memory

CVE-2016-9534 CRITICAL POC
9.8 Nov 22

tif_write.c in libtiff 4.0.6 has an issue in the error code path of TIFFFlushData1() that didn't reset the tif_rawcc and
CVE-2017-17095 HIGH POC
8.8 Dec 02

tools/pal2rgb.c in pal2rgb in LibTIFF 4.0.9 allows remote attackers to cause a denial of service (TIFFSetupStrips heap-b
CVE-2016-8331 HIGH POC
8.1 Oct 28

An exploitable remote code execution vulnerability exists in the handling of TIFF images in LibTIFF version 4.0.6. Rated
CVE-2017-5225 HIGH POC
8.8 Jan 12

LibTIFF version 4.0.7 is vulnerable to a heap buffer overflow in the tools/tiffcp resulting in DoS or code execution via
CVE-2017-17973 HIGH POC
8.8 Dec 29

In LibTIFF 4.0.8, there is a heap-based use-after-free in the t2p_writeproc function in tiff2pdf.c. Rated high severity

CVE-2017-9935 HIGH POC
8.8 Jun 26

In LibTIFF 4.0.8, there is a heap-based buffer overflow in the t2p_write_pdf function in tools/tiff2pdf.c. Rated high se
CVE-2017-17942 HIGH POC
8.8 Dec 28

In LibTIFF 4.0.9, there is a heap-based buffer over-read in the function PackBitsEncode in tif_packbits.c. Rated high se
CVE-2023-25434 HIGH POC
8.8 Jun 14

libtiff 4.5.0 is vulnerable to Buffer Overflow via extractContigSamplesBytes() at /libtiff/tools/tiffcrop.c:3215. Rated

CVE-2022-3970 HIGH POC
8.8 Nov 13

A vulnerability was found in LibTIFF. Rated high severity (CVSS 8.8), this vulnerability is remotely exploitable, no aut

Same weakness CWE-476 – NULL Pointer Dereference

View all
CVE-2016-0742 HIGH
7.5
CVE-2014-3470 MEDIUM
4.3
CVE-2020-1967 HIGH POC
7.5
CVE-2017-3730 HIGH POC
7.5
CVE-2017-3169 CRITICAL POC
9.8
CVE-2016-4957 HIGH
7.5
CVE-2021-3449 MEDIUM
5.9
CVE-2015-3194 HIGH
7.5

Vendor StatusVendor

SUSE

Severity: Medium
Product Status
SUSE Linux Enterprise Micro 5.2 Affected
SUSE Linux Enterprise Micro 5.3 Affected
SUSE Linux Enterprise Micro 5.4 Affected
SUSE Linux Enterprise Micro 5.5 Affected
SUSE Linux Enterprise Module for Basesystem 15 SP7 Affected

References

Advisories & patches
ADVISORY https://ubuntu.com/security/notices/USN-8113-1 ADVISORY https://vuldb.com/vuln/347419 REF https://gist.github.com/optionGo/9c024cd8e7b131463b84dc60af9bb0aa REF https://gitlab.com/libtiff/libtiff/-/issues/737 REF https://gitlab.com/libtiff/libtiff/-/merge_requests/755

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