CVE-2010-4531

CVE-2010-4531 is a medium-severity vulnerability in Muscle Pcsc-lite with a CVSS 2.0 base score of 4.4. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-119.

Key facts

• Severity: Medium (CVSS 2.0 base score 4.4)
• EPSS exploit prediction: 0% (39th percentile)
• Actively exploited: Not listed in CISA KEV
• Weakness: CWE-119
• Affected product: Muscle Pcsc-lite
• Published: 2011-01-18
• Last modified: 2026-06-16

Description

Stack-based buffer overflow in the ATRDecodeAtr function in the Answer-to-Reset (ATR) Handler (atrhandler.c) for pcscd in PCSC-Lite 1.5.3, and possibly other 1.5.x and 1.6.x versions, allows physically proximate attackers to cause a denial of service (crash) and possibly execute arbitrary code via a smart card with an ATR message containing a long attribute value.

Frequently asked questions

What is CVE-2010-4531?

Stack-based buffer overflow in the ATRDecodeAtr function in the Answer-to-Reset (ATR) Handler (atrhandler.c) for pcscd in PCSC-Lite 1.5.3, and possibly other 1.5.x and 1.6.x versions, allows physically proximate attackers to cause a denial of service (crash) and possibly execute arbitrary code via a smart card with an ATR message containing a long attribute value.

How severe is CVE-2010-4531?

CVE-2010-4531 has a CVSS 2.0 base score of 4.4, rated medium severity.

Is CVE-2010-4531 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (39th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2010-4531?

CVE-2010-4531 affects Muscle Pcsc-lite. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2010-4531?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2010-4531 published?

CVE-2010-4531 was published on 2011-01-18 and last updated on 2026-06-16.

References

• http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=607781
• http://labs.mwrinfosecurity.com/files/Advisories/mwri_pcsc-atr-handler-buffer-overflow_2010-12-13.pdf
• http://lists.alioth.debian.org/pipermail/pcsclite-cvs-commit/2010-November/004923.html
• http://lists.fedoraproject.org/pipermail/package-announce/2011-January/053079.html
• http://lists.fedoraproject.org/pipermail/package-announce/2011-January/053095.html
• http://secunia.com/advisories/42912
• http://secunia.com/advisories/43112
• http://www.debian.org/security/2011/dsa-2156
• http://www.mandriva.com/security/advisories?name=MDVSA-2011:015
• http://www.openwall.com/lists/oss-security/2010/12/22/7
• http://www.openwall.com/lists/oss-security/2011/01/03/3
• http://www.securityfocus.com/bid/45450
• http://www.vupen.com/english/advisories/2010/3264
• http://www.vupen.com/english/advisories/2011/0101
• http://www.vupen.com/english/advisories/2011/0180
• http://www.vupen.com/english/advisories/2011/0256
• https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2010-4531

Affected products (1)

• cpe:2.3:a:muscle:pcsc-lite:1.5.3:*:*:*:*:*:*:*

More vulnerabilities in Muscle Pcsc-lite

• CVE-2016-10109 — High (CVSS 7.5): Use-after-free vulnerability in pcsc-lite before 1.8.20 allows a remote attackers to cause denial of service (crash)…
• CVE-2010-0407 — Medium (CVSS 6.8): Multiple buffer overflows in the MSGFunctionDemarshall function in winscard_svc.c in the PC/SC Smart Card daemon (aka…
• CVE-2009-4902 — Medium (CVSS 6.8): Buffer overflow in the MSGFunctionDemarshall function in winscard_svc.c in the PC/SC Smart Card daemon (aka PCSCD) in…
• CVE-2010-4530 — Medium (CVSS 4.4): Signedness error in ccid_serial.c in libccid in the USB Chip/Smart Card Interface Devices (CCID) driver, as used in…
• CVE-2009-4901 — Low (CVSS 2.1): The MSGFunctionDemarshall function in winscard_svc.c in the PC/SC Smart Card daemon (aka PCSCD) in MUSCLE PCSC-Lite…

All CVEs affecting Muscle Pcsc-lite →

Other CWE-119 (Improper Restriction of Operations within the Bounds of a Memory Buffer) vulnerabilities

• CVE-2026-2778 — Critical (CVSS 10.0): Sandbox escape due to incorrect boundary conditions in the DOM: Core & HTML component. This vulnerability was fixed in…
• CVE-2026-2776 — Critical (CVSS 10.0): Sandbox escape due to incorrect boundary conditions in the Telemetry component in External Software. This vulnerability…
• CVE-2025-1866 — Critical (CVSS 10.0): Improper Restriction of Operations within the Bounds of a Memory Buffer vulnerability in warmcat libwebsockets allows…
• CVE-2022-27625 — Critical (CVSS 10.0): A vulnerability regarding improper restriction of operations within the bounds of a memory buffer is found in the…
• CVE-2022-27624 — Critical (CVSS 10.0): A vulnerability regarding improper restriction of operations within the bounds of a memory buffer is found in the…
• CVE-2020-11896 — Critical (CVSS 10.0): The Treck TCP/IP stack before 6.0.1.66 allows Remote Code Execution, related to IPv4 tunneling.

Browse all CWE-119 (Improper Restriction of Operations within the Bounds of a Memory Buffer) vulnerabilities →