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CVE-2016-4302

28
FAUCET Score

CVE-2016-4302 describes a heap-based buffer overflow in libarchive, specifically within the parse_codes function when processing RAR files with a zero-sized dictionary. This vulnerability, affecting libarchive and Red Hat products, carries a high CVSS score of 7.8 due to its potential for remote code execution with high impact on confidentiality, integrity, and availability, requiring user interaction. While no active exploitation or public exploit code (Metasploit, Nuclei, ExploitDB) is reported, it has received some community discussion and media coverage, indicating awareness despite its inactive status on the CISA KEV catalog.

Impacted Technologies

VendorProductVersion(s)CPE
7.0CPE matchmatch criteria
cpe:2.3:o:redhat:enterprise_linux_desktop:7.0:*:*:*:*:*:*:*
7.0CPE matchmatch criteria
cpe:2.3:o:redhat:enterprise_linux_hpc_node:7.0:*:*:*:*:*:*:*
7.2CPE matchmatch criteria
cpe:2.3:o:redhat:enterprise_linux_hpc_node_eus:7.2:*:*:*:*:*:*:*
7.0CPE matchmatch criteria
cpe:2.3:o:redhat:enterprise_linux_server:7.0:*:*:*:*:*:*:*
7.2CPE matchmatch criteria
cpe:2.3:o:redhat:enterprise_linux_server_aus:7.2:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

7.8HIGH

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

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
1.8
Impact Score
5.9
CvssVersion
3.0

Exploit Intelligence

EPSS Score
4.76%
Probability of exploitation in next 30 days
EPSS Percentile
91.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.0476 is in the 92nd percentile among its peer group of 11,616 CVEs.

Social Chatter

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

Media Mentions

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

Remediation

Patch Available

Vendor Patches (2)

github_advisorypatch availablevia nvd_reference
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: libarchive-0:3.1.2-10.el7_2
View patch

Vendor Advisories (1)

redhatCVE-2016-4302Moderate

libarchive: Heap buffer overflow in the Rar decompression functionality

Jun 19, 2016

References

blog.talosintel.com / 2016/06/the-poisoned-archives.html
ExploitThird Party Advisory
bugzilla.redhat.com / bugzilla/show_bug.cgi
Issue Tracking
rhn.redhat.com / errata/RHSA-2016-1844.html
Third Party Advisory
github.com / libarchive/libarchive/commit/05caadc7eedbef471ac9610809ba683f0c698700
Issue TrackingPatch
github.com / libarchive/libarchive/issues/719
Issue TrackingPatch
security.gentoo.org / glsa/201701-03
debian.org / security/2016/dsa-3657
oracle.com / technetwork/topics/security/bulletinjul2016-3090568.html
oracle.com / technetwork/topics/security/linuxbulletinjul2016-3090544.html
securityfocus.com / bid/91331
Third Party AdvisoryVDB Entry
talosintel.com / reports/TALOS-2016-0154
ExploitThird Party Advisory