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CVE-2017-11423

16
FAUCET Score

CVE-2017-11423 is a stack-based buffer over-read vulnerability in the cabd_read_string function of libmspack 0.5alpha, affecting products like ClamAV 0.99.2. This flaw allows remote attackers to trigger a denial of service and application crash via a specially crafted CAB file. Rated MEDIUM (CVSS 5.5), exploitation requires user interaction (UI:R) and local access (AV:L), but has a high impact on availability (A:H). 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
0.5CPE matchmatch criteria
cpe:2.3:a:libmspack_project:libmspack:0.5:alpha:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

5.5MEDIUM

CVSS:3.0/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
3.0

Exploit Intelligence

EPSS Score
2.07%
Probability of exploitation in next 30 days
EPSS Percentile
79.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-24
Model: v2026.06.15
This CVE's current EPSS score of 0.0207 is in the 90th percentile among its peer group of 5,758 CVEs.

Social Chatter

No social media mentions found for this CVE.

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

Vendor Patches (1)

redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: libmspack

Vendor Advisories (1)

redhatCVE-2017-11423Moderate

clamav: Stack-based buffer over-read in cabd_read_string function

Jul 18, 2017

References

bugzilla.clamav.net / show_bug.cgi
Permissions Required
github.com / hackerlib/hackerlib-vul/tree/master/clamav-vul
Third Party Advisory
lists.debian.org / debian-lts-announce/2018/02/msg00014.html
security.gentoo.org / glsa/201804-16
debian.org / security/2017/dsa-3946