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CVE-2020-19499

28
FAUCET Score

CVE-2020-19499 is a high-severity vulnerability affecting libheif version 1.4.0, specifically within the heif::Box_iref::get_references function. This flaw allows attackers to trigger an invalid memory read, potentially leading to a Denial of Service or other unspecified impacts. With a CVSS score of 8.8, this vulnerability can be exploited remotely with low complexity, requiring user interaction, and could result in high impacts to confidentiality, integrity, and availability. Currently, there is no evidence of active exploitation, nor is public exploit code available, and it has received minimal 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: 3.1

8.8HIGH

CVSS:3.1/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
3.1

Exploit Intelligence

EPSS Score
1.37%
Probability of exploitation in next 30 days
EPSS Percentile
69.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0137 is in the 68th percentile among its peer group of 14,855 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 (1)

github_advisorypatch availablevia nvd_reference
View patch

References

github.com / strukturag/libheif/commit/f7399b62d7fbc596f1b2871578c1d2053bedf1dd
PatchThird Party Advisory
github.com / strukturag/libheif/issues/138
ExploitThird Party Advisory