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CVE-2025-43967

22
FAUCET Score

CVE-2025-43967 describes a NULL pointer dereference vulnerability in libheif versions prior to 1.19.6, specifically within the ImageItem_Grid::get_decoder function. This flaw occurs when a grid image attempts to reference a non-existent image item, potentially leading to a denial of service. With a CVSS score of 7.5 (HIGH), this vulnerability can be exploited remotely with low attack complexity, resulting in high availability impact. Currently, there is no known active exploitation, publicly available exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
< 1.19.6CPE matchmatch criteria
cpe:2.3:a:struktur:libheif:*:*:*:*:*:*:*:*
>= 0, < 1.19.6CPE match
cpe:2.3:a:struktur:libheif:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

2.9LOW

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 Impact
NONE
Integrity Impact
NONE
Availability Impact
LOW
Exploitability Score
1.4
Impact Score
1.4
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.41%
Probability of exploitation in next 30 days
EPSS Percentile
33.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0041 is in the 13th percentile among its peer group of 51,553 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (1)

github_advisorypatch availablevia nvd_reference
View patch

References

github.com / strukturag/libheif/commit/6e35af7b0ff9fb6cc952a1539590d160db32f671
Patch
github.com / strukturag/libheif/compare/v1.19.5...v1.19.6
PatchRelease Notes
github.com / strukturag/libheif/issues/1455
ExploitIssue Tracking