CVE-2008-1091

Unspecified vulnerability in Microsoft Word in Office 2000 and XP SP3, 2003 SP2 and SP3, and 2007 Office System SP1 and earlier allows remote attackers to execute arbitrary code via a Rich Text Format (.rtf) file with a malformed string that triggers a "memory calculation error" and a heap-based buffer overflow, aka "Object Parsing Vulnerability."

Published: 2008-05-13 Last update: 2026-04-23 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2008-1091 is rated High Risk (73.4/100): CVSS Critical severity, with high exploitation likelihood (EPSS 64.11%, 98th percentile). EPSS ranks this CVE among the most likely to be exploited in the near term. EPSS rose +1.74% over the last day, indicating growing attacker interest. High exploitation likelihood—assess exposure and prioritize remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2008-1091

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-02-28 62.38% 64.11% +1.74%
2 2025-06-18 58.72% 62.38% +3.66%
3 2025-03-30 — 58.72% —

Full EPSS history (24 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2008-1091

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
9.3 2.0 HIGH
AV:N/AC:M/Au:N/C:C/I:C/A:C Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:M)
Exploitation needs some favorable conditions, but not exceptional ones.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:C)
Complete confidentiality impact.
Integrity impact (I:C)
Complete integrity impact.
Availability impact (A:C)
Complete availability impact.
 8.6 10.0 [email protected]

Weakness enumeration for CVE-2008-1091

Affected software / configurations for CVE-2008-1091

Vendor Product Version Raw CPE
microsoft office 2000 cpe:2.3:a:microsoft:office:2000:sp3:*:*:*:*:*:*
microsoft office 2003 cpe:2.3:a:microsoft:office:2003:sp2:*:*:*:*:*:*
microsoft office 2003 cpe:2.3:a:microsoft:office:2003:sp3:*:*:*:*:*:*
microsoft office 2004 cpe:2.3:a:microsoft:office:2004:*:mac:*:*:*:*:*
microsoft office 2007 cpe:2.3:a:microsoft:office:2007:*:*:*:*:*:*:*
microsoft office 2007_sp1 cpe:2.3:a:microsoft:office:2007_sp1:*:*:*:*:*:*:*
microsoft office 2008 cpe:2.3:a:microsoft:office:2008:*:mac:*:*:*:*:*
microsoft office xp cpe:2.3:a:microsoft:office:xp:sp3:*:*:*:*:*:*
microsoft office_compatibility_pack_for_word_excel_ppt_2007 — cpe:2.3:a:microsoft:office_compatibility_pack_for_word_excel_ppt_2007:*:*:*:*:*:*:*:*
microsoft office_compatibility_pack_for_word_excel_ppt_2007 — cpe:2.3:a:microsoft:office_compatibility_pack_for_word_excel_ppt_2007:*:*:sp1:*:*:*:*:*
microsoft word_viewer 2003 cpe:2.3:a:microsoft:word_viewer:2003:*:*:*:*:*:*:*
microsoft word_viewer 2003 cpe:2.3:a:microsoft:word_viewer:2003:*:sp3:*:*:*:*:*

References for CVE-2008-1091

cvelogic Threat Intelligence