Is CVE-2009-1603 in the CISA KEV catalog?

No. CVE-2009-1603 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2009-1603?

CVE-2009-1603 has a CVSS v3 base score of 7.5 (HIGH).

What is the EPSS score for CVE-2009-1603?

CVE-2009-1603 has an EPSS score of 1.09% (61th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2009-1603?

Upgrade opensc on debian 11 to 0.11.8 or later.

CVE & CISA-KEV Catalog

CVE-2009-1603

HIGH

7.5

CVSS v3

NVD

Description

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.

CWE-312

How to fix

Remediation Available

openscDebian

Fixed in:0.11.8CVE-2009-1603

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityNone

AvailabilityNone

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Exploit Intelligence

1.09%probability of exploitation in 30 days

61stpercentile

Moderate risk: more likely to be exploited than 61% of all known CVEs.

References

Patch1

openwall.com

Third-Party Advisory1

security.gentoo.org

Mailing List4

Other references7

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-04-23.