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CVE-2018-14679

23
FAUCET Score

CVE-2018-14679 is an off-by-one error in libmspack's CHM PMGI/PMGL chunk number validity checks, affecting products like cabextract, Debian, and Red Hat. This vulnerability has a CVSS score of 6.5 (Medium), indicating it can be exploited remotely with low complexity, requiring user interaction, to cause a denial of service through an uninitialized data dereference and application crash. There is no evidence of active exploitation, publicly available exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.

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
3.31%
Probability of exploitation in next 30 days
EPSS Percentile
87.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-24
Model: v2026.06.15
This CVE's current EPSS score of 0.0331 is in the 94th percentile among its peer group of 26,208 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-2018-14679Low

libmspack: off-by-one error in the CHM PMGI/PMGL 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 / 904802
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