Is CVE-2011-1983 in the CISA KEV catalog?

No. CVE-2011-1983 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2011-1983?

CVE-2011-1983 has a CVSS v2 base score of 9.3 (HIGH).

What is the EPSS score for CVE-2011-1983?

CVE-2011-1983 has an EPSS score of 22.72% (97th percentile), estimating the probability of exploitation in the next 30 days.

CVE & CISA-KEV Catalog

CVE-2011-1983

HIGHEPSS 97th pctl

9.3

CVSS v2

NVD

Description

Use-after-free vulnerability in Microsoft Office 2007 SP2 and SP3, Office 2010 Gold and SP1, and Office for Mac 2011 allows remote attackers to execute arbitrary code via a crafted Word document, aka "Word Use After Free Vulnerability."

CWE-399

CVSS v2 Vector

No CVSS vector data available.

Exploit Intelligence

22.72%probability of exploitation in 30 days

97thpercentile

Very high risk: more likely to be exploited than 97% of all known CVEs.

References

http://www.securitytracker.com/id?1026409
http://www.us-cert.gov/cas/techalerts/TA11-347A.html
https://docs.microsoft.com/en-us/security-updates/securitybulletins/2011/ms11-089
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A14197
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A14558

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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 2026-04-29.