CVE-2010-4523

CVE-2010-4523 is a high-severity vulnerability in Opensc-project Opensc with a CVSS 2.0 base score of 7.2. 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: High (CVSS 2.0 base score 7.2)
• EPSS exploit prediction: 1% (54th percentile)
• Actively exploited: Not listed in CISA KEV
• Weakness: CWE-119
• Affected product: Opensc-project Opensc
• Published: 2011-01-07
• Last modified: 2026-06-16

Description

Multiple stack-based buffer overflows in libopensc in OpenSC 0.11.13 and earlier allow physically proximate attackers to execute arbitrary code via a long serial-number field on a smart card, related to (1) card-acos5.c, (2) card-atrust-acos.c, and (3) card-starcos.c.

Frequently asked questions

What is CVE-2010-4523?

Multiple stack-based buffer overflows in libopensc in OpenSC 0.11.13 and earlier allow physically proximate attackers to execute arbitrary code via a long serial-number field on a smart card, related to (1) card-acos5.c, (2) card-atrust-acos.c, and (3) card-starcos.c.

How severe is CVE-2010-4523?

CVE-2010-4523 has a CVSS 2.0 base score of 7.2, rated high severity.

Is CVE-2010-4523 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (54th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2010-4523?

CVE-2010-4523 primarily affects Opensc-project Opensc. In total, 38 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2010-4523?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2010-4523 published?

CVE-2010-4523 was published on 2011-01-07 and last updated on 2026-06-16.

References

• http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=607427
• http://labs.mwrinfosecurity.com/files/Advisories/mwri_opensc-get-serial-buffer-overflow_2010-12-13.pdf
• http://lists.fedoraproject.org/pipermail/package-announce/2011-January/052777.html
• http://lists.fedoraproject.org/pipermail/package-announce/2011-January/052796.html
• http://lists.opensuse.org/opensuse-security-announce/2011-01/msg00006.html
• http://openwall.com/lists/oss-security/2010/12/21/2
• http://openwall.com/lists/oss-security/2010/12/22/3
• http://secunia.com/advisories/42658
• http://secunia.com/advisories/42807
• http://secunia.com/advisories/43068
• http://www.h-online.com/open/news/item/When-a-smart-card-can-root-your-computer-1154829.html
• http://www.mandriva.com/security/advisories?name=MDVSA-2011:011
• http://www.securityfocus.com/bid/45435
• http://www.vupen.com/english/advisories/2011/0009
• http://www.vupen.com/english/advisories/2011/0109
• http://www.vupen.com/english/advisories/2011/0212
• https://bugs.launchpad.net/ubuntu/+source/opensc/+bug/692483
• https://bugzilla.redhat.com/show_bug.cgi?id=664831
• https://www.opensc-project.org/opensc/changeset/4913

Affected products (38)

• cpe:2.3:a:opensc-project:opensc:*:*:*:*:*:*:*:*
• cpe:2.3:a:opensc-project:opensc:0.3.2:*:*:*:*:*:*:*
• cpe:2.3:a:opensc-project:opensc:0.3.5:*:*:*:*:*:*:*
• cpe:2.3:a:opensc-project:opensc:0.4.0:*:*:*:*:*:*:*
• cpe:2.3:a:opensc-project:opensc:0.5.0:*:*:*:*:*:*:*
• cpe:2.3:a:opensc-project:opensc:0.6.0:*:*:*:*:*:*:*
• cpe:2.3:a:opensc-project:opensc:0.6.1:*:*:*:*:*:*:*
• cpe:2.3:a:opensc-project:opensc:0.7.0:*:*:*:*:*:*:*
• cpe:2.3:a:opensc-project:opensc:0.8:*:*:*:*:*:*:*
• cpe:2.3:a:opensc-project:opensc:0.8.0:*:*:*:*:*:*:*
• cpe:2.3:a:opensc-project:opensc:0.8.0.0:*:*:*:*:*:*:*
• cpe:2.3:a:opensc-project:opensc:0.8.1:*:*:*:*:*:*:*
• cpe:2.3:a:opensc-project:opensc:0.9:*:*:*:*:*:*:*
• cpe:2.3:a:opensc-project:opensc:0.9.2:*:*:*:*:*:*:*
• cpe:2.3:a:opensc-project:opensc:0.9.3:*:*:*:*:*:*:*
• cpe:2.3:a:opensc-project:opensc:0.9.4:*:*:*:*:*:*:*
• cpe:2.3:a:opensc-project:opensc:0.9.5:*:*:*:*:*:*:*
• cpe:2.3:a:opensc-project:opensc:0.9.6:*:*:*:*:*:*:*
• cpe:2.3:a:opensc-project:opensc:0.9.7:*:*:*:*:*:*:*
• cpe:2.3:a:opensc-project:opensc:0.9.7:b:*:*:*:*:*:*
• cpe:2.3:a:opensc-project:opensc:0.9.7:d:*:*:*:*:*:*
• cpe:2.3:a:opensc-project:opensc:0.9.8:*:*:*:*:*:*:*
• cpe:2.3:a:opensc-project:opensc:0.10.0:*:*:*:*:*:*:*
• cpe:2.3:a:opensc-project:opensc:0.10.1:*:*:*:*:*:*:*
• cpe:2.3:a:opensc-project:opensc:0.11.0:*:*:*:*:*:*:*
• cpe:2.3:a:opensc-project:opensc:0.11.1:*:*:*:*:*:*:*
• cpe:2.3:a:opensc-project:opensc:0.11.2:*:*:*:*:*:*:*
• cpe:2.3:a:opensc-project:opensc:0.11.3:*:*:*:*:*:*:*
• cpe:2.3:a:opensc-project:opensc:0.11.3:pre3:*:*:*:*:*:*
• cpe:2.3:a:opensc-project:opensc:0.11.4:*:*:*:*:*:*:*
• cpe:2.3:a:opensc-project:opensc:0.11.5:*:*:*:*:*:*:*
• cpe:2.3:a:opensc-project:opensc:0.11.6:*:*:*:*:*:*:*
• cpe:2.3:a:opensc-project:opensc:0.11.7:*:*:*:*:*:*:*
• cpe:2.3:a:opensc-project:opensc:0.11.8:*:*:*:*:*:*:*
• cpe:2.3:a:opensc-project:opensc:0.11.9:*:*:*:*:*:*:*
• cpe:2.3:a:opensc-project:opensc:0.11.10:*:*:*:*:*:*:*
• cpe:2.3:a:opensc-project:opensc:0.11.11:*:*:*:*:*:*:*
• cpe:2.3:a:opensc-project:opensc:0.11.12:*:*:*:*:*:*:*

More vulnerabilities in Opensc-project Opensc

• CVE-2009-1603 — High (CVSS 7.5): src/tools/pkcs11-tool.c in pkcs11-tool in OpenSC 0.11.7, when used with unspecified third-party PKCS#11 modules,…
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• CVE-2008-2235 — Medium (CVSS 4.9): OpenSC before 0.11.5 uses weak permissions (ADMIN file control information of 00) for the 5015 directory on smart cards…
• CVE-2009-0368 — Low (CVSS 2.1): OpenSC before 0.11.7 allows physically proximate attackers to bypass intended PIN requirements and read private data…

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