Is CVE-2009-0846 in the CISA KEV catalog?

No. CVE-2009-0846 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2009-0846?

CVE-2009-0846 has a CVSS v2 base score of 10.0 (HIGH).

What is the EPSS score for CVE-2009-0846?

CVE-2009-0846 has an EPSS score of 8.90% (95th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2009-0846?

Upgrade krb5 on debian 11 to 1.6.dfsg.4~beta1-13 or later.

CVE & CISA-KEV Catalog

CVE-2009-0846

HIGHEPSS 95th pctl

10.0

CVSS v2

NVD

Description

The asn1_decode_generaltime function in lib/krb5/asn.1/asn1_decode.c in the ASN.1 GeneralizedTime decoder in MIT Kerberos 5 (aka krb5) before 1.6.4 allows remote attackers to cause a denial of service (daemon crash) or possibly execute arbitrary code via vectors involving an invalid DER encoding that triggers a free of an uninitialized pointer.

CWE-824

How to fix

Remediation Available

krb5Debian

Fixed in:1.6.dfsg.4~beta1-13CVE-2009-0846

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

CVSS v2 Vector

No CVSS vector data available.

Exploit Intelligence

8.90%probability of exploitation in 30 days

95thpercentile

High risk: more likely to be exploited than 95% of all known CVEs.

References

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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.