HOMEVULNERABILITIESCVE-2019-11463
MEDIUM

CVE-2019-11463

CWE-401Published: April 23, 2019· Updated: Jun 17, 2026

5.5
CVSS v3.1

Official Description

A memory leak in archive_read_format_zip_cleanup in archive_read_support_format_zip.c in libarchive 3.3.4-dev allows remote attackers to cause a denial of service via a crafted ZIP file because of a HAVE_LZMA_H typo. NOTE: this only affects users who downloaded the development code from GitHub. Users of the product's official releases are unaffected.

NVD Source

Technical Analysis

CVE-2019-11463 requires local access, meaning attackers must already have a foothold on the target system.

Exploitation does not require any privileges, though user interaction (Required) is needed, which slightly reduces the risk of mass automated attacks.

A successful exploit results in availability disruption (denial of service), with a CVSS base score of 5.5.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorLocal
Attack ComplexityLow
Privileges Req.None
User InteractionRequired
ScopeUnchanged
Impact
ConfidentialityNone
IntegrityNone
AvailabilityHigh
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Affected Vendors & Products

libarchive1 product(s)
libarchive
Source: NVD CPE · 1 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

PATCHhttps://github.com/libarchive/libarchive/commit/ba641f73f3d758d9032b3f0e5597a9c6e593a505
PATCHhttps://github.com/libarchive/libarchive/commit/ba641f73f3d758d9032b3f0e5597a9c6e593a505
ADVISORYhttps://github.com/libarchive/libarchive/issues/1165
ADVISORYhttps://access.redhat.com/security/cve/cve-2019-11463
ADVISORYhttps://github.com/libarchive/libarchive/issues/1165

All References (5)

→
https://github.com/libarchive/libarchive/commit/ba641f73f3d758d9032b3f0e5597a9c6e593a505Patch · Third Party Advisory
→
https://github.com/libarchive/libarchive/issues/1165Exploit · Third Party Advisory
→
https://access.redhat.com/security/cve/cve-2019-11463Third Party Advisory
→
https://github.com/libarchive/libarchive/commit/ba641f73f3d758d9032b3f0e5597a9c6e593a505Patch · Third Party Advisory
→
https://github.com/libarchive/libarchive/issues/1165Exploit · Third Party Advisory

Quick Facts

CVE IDCVE-2019-11463
CVSS Score5.5 / 10
SeverityMEDIUM
WeaknessCWE-401
CISA KEVNo
Affected1 vendor(s)
PublishedApr 23, 2019

Related CVEs (CWE-401)

CVE-2021-40633
8.8
CVE-2023-33718
8.8
CVE-2019-17340
8.8
CVE-2019-6128
8.8
CVE-2026-0646
8.7
CVE-2021-1353
8.6

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2019-11463 in threat intel feeds
  • →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.
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