Cyber Resilience

CVE-2025-61143

Memory Safety in Libtiff ≤ 4.7.1

Memory Safety
Published
23 February 2026
Modified
25 February 2026
CVSS Score v3.1 5.5
Click a component to see what it means
Raw vectorCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
EPSS Score 0.0011 2th percentile
Risk Priority 35 floored blend · peak EPSS

Summary

CVE-2025-61143 is a medium-severity NULL Pointer Dereference (CWE-476) vulnerability in Libtiff Libtiff. Its CVSS base score is 5.5 (Medium).

Operationally, ranked at the 2th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.

The strongest mitigations our analysis identified map to SI-2 (Flaw Remediation) and RA-5 (Vulnerability Monitoring and Scanning) — see the control section below for these in your framework.

OWASP Top 10 for Web (2025)

A10:2025 Mishandling of Exceptional Conditions

EU & UK References

Vulnerability Data

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

CWE(s)
CWE-476

Related Threats

MITRE ATT&CK Enterprise TechniquesAI

Insufficient information to map techniques.
Confidence: LOW · MITRE ATT&CK Enterprise v19.0

CVEs Like This One

CVE-2023-3316Same product: Libtiff Libtiff
CVE-2023-2908Same product: Libtiff Libtiff
CVE-2025-8534Same product: Libtiff Libtiff
CVE-2024-13978Same product: Libtiff Libtiff
CVE-2023-0803Same product: Libtiff Libtiff
CVE-2025-61144Same product: Libtiff Libtiff
CVE-2023-25434Same product: Libtiff Libtiff
CVE-2025-8961Same product: Libtiff Libtiff
CVE-2023-0801Same product: Libtiff Libtiff
CVE-2025-61145Same product: Libtiff Libtiff

Affected Assets

libtiff
libtiff
≤ 4.7.1

Mitigating Controls

Control response

Prevent
Stop it (NIST 800-53)
  • SI-2 Flaw Remediation
  • SI-10 Information Input Validation
Detect
Catch it (NIST detect / respond)
  • RA-5 Vulnerability Monitoring and Scanning
Harden
Shrink the surface (DISA STIG)

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Validate
Prove the fix (OWASP ASVS)

—

Mitigating Controls (NIST 800-53 r5) AI

SI-2 Flaw Remediation good match
prevent

Directly requires timely patching or updating of libtiff to eliminate the NULL pointer dereference in tif_open.c.

SI-10 Information Input Validation partial match
prevent

Requires validation of inputs and parameters passed to libtiff functions, reducing the chance of triggering the dereference condition.

RA-5 Vulnerability Monitoring and Scanning partial match
detect

Enables discovery of vulnerable libtiff versions through scanning so the flaw can be addressed before exploitation.

Mitigating Controls (NIST CSF 2.0) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→CSF cross-walk (authority under review) — links open the control.

PR.PS-06 mostly match
prevents

Secure SDLC practices (static analysis, code review, safe coding standards) directly prevent NULL dereference bugs during development.

Mitigating Controls (ISO/IEC 27001:2022 Annex A) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→ISO cross-walk (authority under review) — links open the control.

A.8.29 Security testing in development and acceptance mostly match
detects

Security testing can detect NULL dereference defects before release.

A.8.25 Secure development life cycle partial match
prevents

Secure SDLC mandates defensive coding practices that can prevent NULL dereferences.

A.8.26 Application security requirements partial match
prevents

Application security requirements can specify input validation and pointer-safety rules.

A.8.27 Secure system architecture and engineering principles partial match
prevents

Secure architecture principles encourage defensive design that avoids unsafe pointer use.

A.8.28 Secure coding partial match
prevents

Secure coding standards directly require NULL-pointer checks and safe dereference patterns.

References