CVE-2015-4467

Exp

The chmd_init_decomp function in chmd.c in libmspack before 0.5 does not properly validate the reset interval, which allows remote attackers to cause a denial of service (divide-by-zero error and application crash) via a crafted CHM file.

Published: 2015-06-11 Last update: 2026-05-06 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2015-4467 is rated Exploit Available (57.8/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 1.46%). 1 public exploit reference(s) are indexed (Exploit-DB). EPSS rose +1.08% over the last day, indicating growing attacker interest. Public exploits are available—assess exposure, apply mitigations, and prioritize patching.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Public exploit references (Exploit-DB) for CVE-2015-4467

EDB-ID Source Kind Published Link
— nvd_ref exploit_tag Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2015-4467

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 0.38% 1.46% +1.08%
2 2026-02-27 0.48% 0.38% -0.10%
3 2025-03-30 — 0.48% —

Full EPSS history (7 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2015-4467

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
4.3 2.0 MEDIUM
AV:N/AC:M/Au:N/C:N/I:N/A:P Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:M)
Exploitation needs some favorable conditions, but not exceptional ones.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:N)
No confidentiality impact.
Integrity impact (I:N)
No integrity impact.
Availability impact (A:P)
Partial availability impact.
 8.6 2.9 [email protected]

Weakness enumeration for CVE-2015-4467

OS Trackers for CVE-2015-4467

vendor priority summary link
debian not yet assigned CVE-2015-4467 not yet assigned priority: Debian including 1 source packages (libmspack), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. https://security-tracker.debian.org/tracker/CVE-2015-4467
ubuntu medium CVE-2015-4467 medium priority: Ubuntu including 1 source packages (libmspack), 21 status rows across 21 suites (artful, bionic, cosmic, disco, focal, jammy, kinetic, lunar, mantic, noble, oracular, plucky, precise, trusty, upstream, utopic, vivid, wily, xenial, yakkety, zesty): not-affected 17, released 2, DNE 1, ignored 1. https://ubuntu.com/security/CVE-2015-4467

Affected software / configurations for CVE-2015-4467

Vendor Product Version Raw CPE
libmspack_project libmspack <= 0.4-3 cpe:2.3:a:libmspack_project:libmspack:*:*:*:*:*:*:*:*

References for CVE-2015-4467

cvelogic Threat Intelligence