What is the CVSS score of CVE-2025-43967?

CVE-2025-43967 has a CVSS 3.1 base score of 2.9 (Low). CVSS vector: CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L. EPSS exploitation probability: 0.2%.

Which versions of Libheif are affected by CVE-2025-43967?

CVE-2025-43967 is a low-severity vulnerability in libheif before 1.19.6 involving null pointer dereference (CVSS 2.9).. A patch is available.

Is there a public PoC exploit available for CVE-2025-43967?

Yes, a public proof-of-concept exploit is available for CVE-2025-43967. Prioritise patching immediately. EPSS: 0.2%.

How to fix or mitigate CVE-2025-43967?

During next maintenance window: Apply vendor patches when convenient. Verify null pointer dereference controls are in place.

Libheif CVE-2025-43967

LOW

NULL Pointer Dereference (CWE-476)

2025-04-21 cve@mitre.org

Null Pointer Dereference Denial Of Service Libheif

2.9

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

2.9 LOW

AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L

Attack Vector

Local

Attack Complexity

High

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

Low

Lifecycle Timeline

Analysis Generated

Mar 28, 2026 - 18:38 vuln.today

Patch released

Mar 28, 2026 - 18:38 nvd

Patch available

PoC Detected

May 08, 2025 - 16:05 vuln.today

Public exploit code

CVE Published

Apr 21, 2025 - 00:15 nvd

LOW 2.9

DescriptionCVE.org

libheif before 1.19.6 has a NULL pointer dereference in ImageItem_Grid::get_decoder in image-items/grid.cc because a grid image can reference a nonexistent image item.

AnalysisAI

libheif before 1.19.6 has a NULL pointer dereference in ImageItem_Grid::get_decoder in image-items/grid.cc because a grid image can reference a nonexistent image item. Rated low severity (CVSS 2.9), this vulnerability is no authentication required. Public exploit code available.

Technical ContextAI

This vulnerability is classified as NULL Pointer Dereference (CWE-476), which allows attackers to crash the application by dereferencing a null pointer. libheif before 1.19.6 has a NULL pointer dereference in ImageItem_Grid::get_decoder in image-items/grid.cc because a grid image can reference a nonexistent image item. Affected products include: Struktur Libheif. Version information: before 1.19.6.

RemediationAI

A vendor patch is available. Apply the latest security update as soon as possible. Check pointers before dereferencing. Use static analysis tools to detect null pointer paths.

CVE-2025-43967 vulnerability details – vuln.today

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Libheif CVE-2025-43967

Severity by source

CVSS VectorNVD

Lifecycle Timeline

DescriptionCVE.org

AnalysisAI

Technical ContextAI

RemediationAI

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External POC / Exploit Code