CVE-2009-4902

Buffer overflow in the MSGFunctionDemarshall function in winscard_svc.c in the PC/SC Smart Card daemon (aka PCSCD) in MUSCLE PCSC-Lite 1.5.4 and earlier might allow local users to gain privileges via crafted SCARD_CONTROL message data, which is improperly demarshalled. NOTE: this vulnerability exists because of an incorrect fix for CVE-2010-0407.

Published: 2010-06-18 Last update: 2026-04-29 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2009-4902 is rated Low Risk (36.3/100): CVSS Medium severity, with low exploitation likelihood (EPSS 0.09%). Monitor for updates and reassess as exploit intelligence or EPSS changes.

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

Exploit prediction scoring system (EPSS) score for CVE-2009-4902

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 2026-04-12 0.02% 0.09% +0.07%
2 2026-01-30 0.05% 0.02% -0.03%
3 2025-03-17 — 0.05% —

Full EPSS history (5 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2009-4902

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
6.8 2.0 MEDIUM
AV:L/AC:L/Au:S/C:C/I:C/A:C Click to expand
Access vector (AV:L)
Requires local access to the target system.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:S)
A single authentication is required.
Confidentiality impact (C:C)
Complete confidentiality impact.
Integrity impact (I:C)
Complete integrity impact.
Availability impact (A:C)
Complete availability impact.
 3.1 10.0 [email protected]

Weakness enumeration for CVE-2009-4902

OS Trackers for CVE-2009-4902

vendor priority summary link
debian unimportant CVE-2009-4902 unimportant priority: Debian including 1 source packages (pcsc-lite), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. https://security-tracker.debian.org/tracker/CVE-2009-4902
redhat medium — https://access.redhat.com/security/cve/CVE-2009-4902
ubuntu medium CVE-2009-4902 medium priority: Ubuntu including 1 source packages (pcsc-lite), 6 status rows across 6 suites (dapper, hardy, jaunty, karmic, lucid, upstream): not-affected 5, released 1. https://ubuntu.com/security/CVE-2009-4902

Affected software / configurations for CVE-2009-4902

Vendor Product Version Raw CPE
muscle pcsc-lite <= 1.5.4 cpe:2.3:a:muscle:pcsc-lite:*:*:*:*:*:*:*:*
muscle pcsc-lite 1.1.2 cpe:2.3:a:muscle:pcsc-lite:1.1.2:beta2:*:*:*:*:*:*
muscle pcsc-lite 1.1.2 cpe:2.3:a:muscle:pcsc-lite:1.1.2:beta3:*:*:*:*:*:*
muscle pcsc-lite 1.1.2 cpe:2.3:a:muscle:pcsc-lite:1.1.2:beta4:*:*:*:*:*:*
muscle pcsc-lite 1.1.2 cpe:2.3:a:muscle:pcsc-lite:1.1.2:beta5:*:*:*:*:*:*
muscle pcsc-lite 1.2.0 cpe:2.3:a:muscle:pcsc-lite:1.2.0:*:*:*:*:*:*:*
muscle pcsc-lite 1.2.0 cpe:2.3:a:muscle:pcsc-lite:1.2.0:rc1:*:*:*:*:*:*
muscle pcsc-lite 1.2.0 cpe:2.3:a:muscle:pcsc-lite:1.2.0:rc2:*:*:*:*:*:*
muscle pcsc-lite 1.2.0 cpe:2.3:a:muscle:pcsc-lite:1.2.0:rc3:*:*:*:*:*:*
muscle pcsc-lite 1.2.9 cpe:2.3:a:muscle:pcsc-lite:1.2.9:beta1:*:*:*:*:*:*
muscle pcsc-lite 1.2.9 cpe:2.3:a:muscle:pcsc-lite:1.2.9:beta10:*:*:*:*:*:*
muscle pcsc-lite 1.2.9 cpe:2.3:a:muscle:pcsc-lite:1.2.9:beta2:*:*:*:*:*:*
muscle pcsc-lite 1.2.9 cpe:2.3:a:muscle:pcsc-lite:1.2.9:beta3:*:*:*:*:*:*
muscle pcsc-lite 1.2.9 cpe:2.3:a:muscle:pcsc-lite:1.2.9:beta4:*:*:*:*:*:*
muscle pcsc-lite 1.2.9 cpe:2.3:a:muscle:pcsc-lite:1.2.9:beta5:*:*:*:*:*:*
muscle pcsc-lite 1.2.9 cpe:2.3:a:muscle:pcsc-lite:1.2.9:beta6:*:*:*:*:*:*
muscle pcsc-lite 1.2.9 cpe:2.3:a:muscle:pcsc-lite:1.2.9:beta7:*:*:*:*:*:*
muscle pcsc-lite 1.2.9 cpe:2.3:a:muscle:pcsc-lite:1.2.9:beta8:*:*:*:*:*:*
muscle pcsc-lite 1.2.9 cpe:2.3:a:muscle:pcsc-lite:1.2.9:beta9:*:*:*:*:*:*
muscle pcsc-lite 1.3.0 cpe:2.3:a:muscle:pcsc-lite:1.3.0:*:*:*:*:*:*:*
muscle pcsc-lite 1.3.1 cpe:2.3:a:muscle:pcsc-lite:1.3.1:*:*:*:*:*:*:*
muscle pcsc-lite 1.3.2 cpe:2.3:a:muscle:pcsc-lite:1.3.2:*:*:*:*:*:*:*
muscle pcsc-lite 1.3.3 cpe:2.3:a:muscle:pcsc-lite:1.3.3:*:*:*:*:*:*:*
muscle pcsc-lite 1.4.0 cpe:2.3:a:muscle:pcsc-lite:1.4.0:*:*:*:*:*:*:*
muscle pcsc-lite 1.4.1 cpe:2.3:a:muscle:pcsc-lite:1.4.1:*:*:*:*:*:*:*
muscle pcsc-lite 1.4.2 cpe:2.3:a:muscle:pcsc-lite:1.4.2:*:*:*:*:*:*:*
muscle pcsc-lite 1.4.3 cpe:2.3:a:muscle:pcsc-lite:1.4.3:*:*:*:*:*:*:*
muscle pcsc-lite 1.4.4 cpe:2.3:a:muscle:pcsc-lite:1.4.4:*:*:*:*:*:*:*
muscle pcsc-lite 1.4.99 cpe:2.3:a:muscle:pcsc-lite:1.4.99:*:*:*:*:*:*:*
muscle pcsc-lite 1.4.100 cpe:2.3:a:muscle:pcsc-lite:1.4.100:*:*:*:*:*:*:*
muscle pcsc-lite 1.4.101 cpe:2.3:a:muscle:pcsc-lite:1.4.101:*:*:*:*:*:*:*
muscle pcsc-lite 1.4.102 cpe:2.3:a:muscle:pcsc-lite:1.4.102:*:*:*:*:*:*:*
muscle pcsc-lite 1.5.0 cpe:2.3:a:muscle:pcsc-lite:1.5.0:*:*:*:*:*:*:*
muscle pcsc-lite 1.5.1 cpe:2.3:a:muscle:pcsc-lite:1.5.1:*:*:*:*:*:*:*
muscle pcsc-lite 1.5.2 cpe:2.3:a:muscle:pcsc-lite:1.5.2:*:*:*:*:*:*:*

References for CVE-2009-4902

cvelogic Threat Intelligence