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CVE-2018-14680

24
FAUCET Score

CVE-2018-14680 is a denial-of-service vulnerability in libmspack, specifically within the mspack/chmd.c component, affecting versions prior to 0.7alpha. This flaw allows attackers to trigger a denial of service by providing specially crafted CHM files with blank filenames, impacting products like cabextract, Canonical, Debian, and Red Hat. Rated Medium severity (CVSS 6.5), it requires user interaction (UI:R) but can be exploited remotely (AV:N) with low attack complexity (AC:L), leading to high availability impact (A:H). There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
0.0.20060920CPE matchmatch criteria
cpe:2.3:a:cabextract:libmspack:0.0.20060920:alpha:*:*:*:*:*:*
0.3CPE matchmatch criteria
cpe:2.3:a:cabextract:libmspack:0.3:alpha:*:*:*:*:*:*
0.4CPE matchmatch criteria
cpe:2.3:a:cabextract:libmspack:0.4:alpha:*:*:*:*:*:*
0.5CPE matchmatch criteria
cpe:2.3:a:cabextract:libmspack:0.5:alpha:*:*:*:*:*:*
0.6CPE matchmatch criteria
cpe:2.3:a:cabextract:libmspack:0.6:alpha:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

6.5MEDIUM

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
2.8
Impact Score
3.6
CvssVersion
3.0

Exploit Intelligence

EPSS Score
3.75%
Probability of exploitation in next 30 days
EPSS Percentile
88.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0375 is in the 95th percentile among its peer group of 26,219 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 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 (2)

github_advisorypatch availablevia nvd_reference
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: libmspack-0:0.5-0.6.alpha.el7
View patch

Vendor Advisories (1)

redhatCVE-2018-14680Low

libmspack: off-by-one error in the CHM chunk number validity checks

May 12, 2018

References

access.redhat.com / errata/RHSA-2018:3327
Third Party Advisory
access.redhat.com / errata/RHSA-2018:3505
Third Party Advisory
bugs.debian.org / 904801
Issue TrackingMailing ListPatchThird Party Advisory
github.com / kyz/libmspack/commit/72e70a921f0f07fee748aec2274b30784e1d312a
PatchThird Party Advisory
lists.debian.org / debian-lts-announce/2018/08/msg00007.html
Mailing ListThird Party Advisory
security.gentoo.org / glsa/201903-20
Third Party Advisory
usn.ubuntu.com / 3728-1
Third Party Advisory
usn.ubuntu.com / 3728-2
Third Party Advisory
usn.ubuntu.com / 3728-3
Third Party Advisory
usn.ubuntu.com / 3789-2
Third Party Advisory
debian.org / security/2018/dsa-4260
Third Party Advisory
openwall.com / lists/oss-security/2018/07/26/1
Mailing ListThird Party Advisory
securitytracker.com / id/1041410
Third Party AdvisoryVDB Entry