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CVE-2019-11471

27
FAUCET Score

CVE-2019-11471 is a use-after-free vulnerability in libheif version 1.4.0, specifically within the heif::HeifContext::Image::set_alpha_channel function, due to mishandling of non-existent alpha image references. This flaw carries a high CVSS score of 8.8, indicating a critical risk with potential for high impact on confidentiality, integrity, and availability, and can be exploited remotely with low attack complexity, requiring user interaction. Despite its severity, there is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
1.4.0CPE matchmatch criteria
cpe:2.3:a:struktur:libheif:1.4.0:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

8.8HIGH

CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
2.8
Impact Score
5.9
CvssVersion
3.0

Exploit Intelligence

EPSS Score
1.84%
Probability of exploitation in next 30 days
EPSS Percentile
76.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.0184 is in the 76th percentile among its peer group of 14,848 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.2 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.1 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (4)

autodeskpatch availablevia llm_extracted
View patch
freepbxpatch availablevia llm_extracted
View patch
github_advisorypatch availablevia nvd_reference
View patch
honeywellpatch availablevia llm_extracted
View patch

Vendor Advisories (3)

honeywellllm-honeywell-c82b5cfda9df97a3CRITICAL

HP ThinPro 8.1 SP8 Security Updates

Oct 27, 2025
autodeskllm-autodesk-c365b674a2ff5a3aCRITICAL

HP ThinPro 8.1 SP8 Security Updates

Oct 27, 2025
freepbxllm-freepbx-e54908c7967265f6CRITICAL

HP ThinPro 8.1 SP8 Security Updates

Oct 27, 2025

References

github.com / strukturag/libheif/commit/995a4283d8ed2d0d2c1ceb1a577b993df2f0e014
PatchThird Party Advisory
github.com / strukturag/libheif/issues/123
ExploitPatchThird Party Advisory