What is CVE-2009-1603?

CVE-2009-1603 is a high-severity vulnerability in Opensc-Project Opensc, classified under Cleartext Storage of Sensitive Information. CVSS score: 7.5/10. Published 2009-05-11.

How severe is CVE-2009-1603?

High severity. CVSS v3 base score is 7.5 out of 10.

Vulnerability in Opensc-Project Opensc

CVE-2009-1603

src/tools/pkcs11-tool.c in pkcs11-tool in OpenSC 0.11.7, when used with unspecified third-party PKCS#11 modules, generates RSA keys with incorrect public exponents, which allows attackers to read the cleartext form of messages that were intended to be encrypted.

Published 2009-05-11 · last modified 2026-06-16.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.

EPSS exploit prediction

EPSS: 0.011 (64.1th percentile), scored 2026-09-30.

Low probability of exploitation in the next 30 days, but still tracked. 64th percentile — 64.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.011 · newest: 0.011 · change: 0.000

Affected products

Opensc-Project Opensc — versions 0.11.7
Fedoraproject Fedora — versions 9, 10, 11

Weakness classification (CWE)

CWE-312 — Cleartext Storage of Sensitive Information

References

www.vupen.com/english/advisories/2009/1295 (vdb-entry, Broken Link)
secunia.com/advisories/35293 (Broken Link, third-party-advisory)
www.redhat.com/archives/fedora-package-announce/2009-May/msg01420.html (vendor-advisory, Mailing List)
www.openwall.com/lists/oss-security/2009/05/08/1 (mailing-list, Patch, Mailing List)
www.redhat.com/archives/fedora-package-announce/2009-June/msg00097.html (vendor-advisory, Mailing List)
www.redhat.com/archives/fedora-package-announce/2009-June/msg00095.html (vendor-advisory, Mailing List)
secunia.com/advisories/36074 (Broken Link, third-party-advisory)
www.mandriva.com/security/advisories (vendor-advisory, Broken Link)
www.redhat.com/archives/fedora-package-announce/2009-May/msg01432.html (vendor-advisory, Mailing List)
secunia.com/advisories/35035 (Broken Link, third-party-advisory)

Frequently asked questions

What is CVE-2009-1603?: CVE-2009-1603 is a high-severity vulnerability in Opensc-Project Opensc, classified under Cleartext Storage of Sensitive Information. CVSS score: 7.5/10. Published 2009-05-11.
How severe is CVE-2009-1603?: High severity. CVSS v3 base score is 7.5 out of 10.