Is CVE-2009-3853 in the CISA KEV catalog?

No. CVE-2009-3853 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2009-3853?

CVE-2009-3853 has a CVSS v2 base score of 9.3 (HIGH).

What is the EPSS score for CVE-2009-3853?

CVE-2009-3853 has an EPSS score of 36.72% (98th percentile), estimating the probability of exploitation in the next 30 days.

CVE & CISA-KEV Catalog

CVE-2009-3853

HIGHEPSS 98th pctl

9.3

CVSS v2

NVD

Description

Stack-based buffer overflow in the client acceptor daemon (CAD) scheduler in the client in IBM Tivoli Storage Manager (TSM) 5.3 before 5.3.6.7, 5.4 before 5.4.3, 5.5 before 5.5.2.2, and 6.1 before 6.1.0.2, and TSM Express 5.3.3.0 through 5.3.6.6, allows remote attackers to execute arbitrary code via crafted data in a TCP packet.

CWE-119Buffer Overflow

CVSS v2 Vector

No CVSS vector data available.

Exploit Intelligence

36.72%probability of exploitation in 30 days

98thpercentile

Very high risk: more likely to be exploited than 98% 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.