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 update: 2026-04-23 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2009-1603 is rated Moderate Risk (56.7/100): CVSS High severity, with medium exploitation likelihood (EPSS 1.05%). Review affected assets and schedule remediation.

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-2009-1603

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 2025-03-19 0.67% 1.05% +0.38%
2 2025-03-17 0.28% 0.67% +0.39%
3 2024-12-17 — 0.28% —

Full EPSS history (6 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2009-1603

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
7.5 3.1 HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:N)
Service keeps running; no real outage angle.
 3.9 3.6 [email protected]
4.3 2.0 MEDIUM
AV:N/AC:M/Au:N/C:P/I:N/A:N Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:M)
Exploitation needs some favorable conditions, but not exceptional ones.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:P)
Partial confidentiality impact.
Integrity impact (I:N)
No integrity impact.
Availability impact (A:N)
No availability impact.
 8.6 2.9 [email protected]

Weakness enumeration for CVE-2009-1603

OS Trackers for CVE-2009-1603

vendor priority summary link
debian high CVE-2009-1603 high priority: Debian including 1 source packages (opensc), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. https://security-tracker.debian.org/tracker/CVE-2009-1603
gentoo normal CVE-2009-1603: 1 GLSA(s) (200908-01), 1 atom(s) (dev-libs/opensc); latest impact normal. https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2009-1603
redhat medium — https://access.redhat.com/security/cve/CVE-2009-1603
ubuntu low CVE-2009-1603 low priority: Ubuntu including 1 source packages (opensc), 9 status rows across 9 suites (dapper, hardy, intrepid, jaunty, karmic, lucid, maverick, natty, upstream): not-affected 7, ignored 1, released 1. https://ubuntu.com/security/CVE-2009-1603

Affected software / configurations for CVE-2009-1603

Vendor Product Version Raw CPE
opensc-project opensc 0.11.7 cpe:2.3:a:opensc-project:opensc:0.11.7:*:*:*:*:*:*:*
fedoraproject fedora 9 cpe:2.3:o:fedoraproject:fedora:9:*:*:*:*:*:*:*
fedoraproject fedora 10 cpe:2.3:o:fedoraproject:fedora:10:*:*:*:*:*:*:*
fedoraproject fedora 11 cpe:2.3:o:fedoraproject:fedora:11:*:*:*:*:*:*:*

References for CVE-2009-1603

URL Tags
http://secunia.com/advisories/35035 Broken Link
http://secunia.com/advisories/35293 Broken Link
http://secunia.com/advisories/35309 Broken Link
http://secunia.com/advisories/36074 Broken Link
http://security.gentoo.org/glsa/glsa-200908-01.xml Third Party Advisory
http://www.mandriva.com/security/advisories?name=MDVSA-2009:123 Broken Link
http://www.opensc-project.org/pipermail/opensc-announce/2009-May/000025.html Broken Link
http://www.openwall.com/lists/oss-security/2009/05/08/1 Mailing List Patch
http://www.vupen.com/english/advisories/2009/1295 Broken Link
https://www.redhat.com/archives/fedora-package-announce/2009-June/msg00095.html Mailing List
https://www.redhat.com/archives/fedora-package-announce/2009-June/msg00097.html Mailing List
https://www.redhat.com/archives/fedora-package-announce/2009-May/msg01420.html Mailing List
https://www.redhat.com/archives/fedora-package-announce/2009-May/msg01432.html Mailing List
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