Is CVE-2007-3897 in the CISA KEV catalog?

No. CVE-2007-3897 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2007-3897?

CVE-2007-3897 has a CVSS v2 base score of 9.3 (HIGH).

What is the EPSS score for CVE-2007-3897?

CVE-2007-3897 has an EPSS score of 54.63% (99th percentile), estimating the probability of exploitation in the next 30 days.

CVE & CISA-KEV Catalog

CVE-2007-3897

HIGHEPSS 99th pctl

9.3

CVSS v2

NVD

Description

Heap-based buffer overflow in Microsoft Outlook Express 6 and earlier, and Windows Mail for Vista, allows remote Network News Transfer Protocol (NNTP) servers to execute arbitrary code via long NNTP responses that trigger memory corruption.

CWE-119Buffer Overflow

CVSS v2 Vector

No CVSS vector data available.

Exploit Intelligence

54.63%probability of exploitation in 30 days

99thpercentile

Very high risk: more likely to be exploited than 99% of all known CVEs.

References

http://labs.idefense.com/intelligence/vulnerabilities/display.php?id=607
http://secunia.com/advisories/27112
http://securitytracker.com/id?1018785
http://securitytracker.com/id?1018786
http://www.securityfocus.com/archive/1/481983/100/100/threaded
http://www.securityfocus.com/archive/1/482366/100/0/threaded
http://www.securityfocus.com/bid/25908
http://www.us-cert.gov/cas/techalerts/TA07-282A.html
http://www.vupen.com/english/advisories/2007/3436
https://docs.microsoft.com/en-us/security-updates/securitybulletins/2007/ms07-056
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A1706

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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.