Off-by-one error in the READ_ENCINT macro in chmd.c in libmspack before 0.5 allows remote attackers to cause a denial of service (application crash) or possibly have unspecified other impact via a crafted CHM file.
Conclusion & alert: CVE-2015-4472 is rated High Exploit Risk (68.7/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 1.59%). Core evidence: 1 public exploit reference(s) are indexed (Exploit-DB). EPSS rose +1.22% over the last day, indicating growing attacker interest. Mandatory action: 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.
| EDB-ID | Source | Kind | Published | Link |
|---|---|---|---|---|
| — | nvd_ref | exploit_tag | Exploit-DB ↗ |
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 | 0.36% | 1.59% | +1.22% |
| 2 | 2026-02-27 | 0.47% | 0.36% | -0.10% |
| 3 | 2025-03-30 | — | 0.47% | — |
Full EPSS history (8 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 6.8 | 2.0 | MEDIUM |
|
8.6 | 6.4 | [email protected] |
| vendor | priority | summary | link |
|---|---|---|---|
debian
|
not yet assigned | CVE-2015-4472 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-2015-4472 |
gentoo
|
normal | CVE-2015-4472: 1 GLSA(s) (201506-01), 1 atom(s) (www-plugins/adobe-flash); latest impact normal. | https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2015-4472 |
ubuntu
|
medium | CVE-2015-4472 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-2015-4472 |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| libmspack_project | libmspack | <= 0.4-3 | cpe:2.3:a:libmspack_project:libmspack:*:*:*:*:*:*:*:* |