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CVE-2019-11463

21
FAUCET Score

CVE-2019-11463 describes a memory leak in libarchive 3.3.4-dev, specifically within the archive_read_format_zip_cleanup function, due to a typo in the development code. This vulnerability affects only users who downloaded the development code from GitHub, with official releases being unaffected. The CVSS score of 5.5 (Medium) indicates a local attack vector with low complexity, requiring user interaction, and leading to a high availability impact (denial of service). There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage, suggesting a low practical risk.

Impacted Technologies

VendorProductVersion(s)CPE
< 3.4.0CPE matchmatch criteria
cpe:2.3:a:libarchive:libarchive:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

5.5MEDIUM

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

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
1.8
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
1.30%
Probability of exploitation in next 30 days
EPSS Percentile
67.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0130 is in the 78th percentile among its peer group of 5,765 CVEs.

Social Chatter

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

Vendor Advisories (1)

redhatCVE-2019-11463Low

libarchive: memory leak in archive_read_format_zip_cleanup in archive_read_support_format_zip.c causing denial of service via crafted zip file

Mar 28, 2019

References

github.com / libarchive/libarchive/commit/ba641f73f3d758d9032b3f0e5597a9c6e593a505
PatchThird Party Advisory
github.com / libarchive/libarchive/issues/1165
ExploitThird Party Advisory
access.redhat.com / security/cve/cve-2019-11463
Third Party Advisory