Is CVE-2009-2906 in the CISA KEV catalog?

No. CVE-2009-2906 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2009-2906?

CVE-2009-2906 has a CVSS v2 base score of 4.0 (MEDIUM).

What is the EPSS score for CVE-2009-2906?

CVE-2009-2906 has an EPSS score of 4.21% (90th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2009-2906?

Upgrade samba on debian 11 to 2:3.4.2-1 or later.

CVE & CISA-KEV Catalog

CVE-2009-2906

MEDIUMEPSS 90th pctl

4.0

CVSS v2

NVD

Description

smbd in Samba 3.0 before 3.0.37, 3.2 before 3.2.15, 3.3 before 3.3.8, and 3.4 before 3.4.2 allows remote authenticated users to cause a denial of service (infinite loop) via an unanticipated oplock break notification reply packet.

CWE-835

How to fix

Remediation Available

sambaDebian

Fixed in:2:3.4.2-1CVE-2009-2906

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

4.21%probability of exploitation in 30 days

90thpercentile

Elevated risk: more likely to be exploited than 90% 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.