CVE-2008-0116

Excel vulnerability

CVSS

9.3

EPSS

48.2%

EPSS pct

99th

Exploited

No known

Microsoft Excel 2000 SP3 through 2003 SP2, Viewer 2003, Compatibility Pack, and Office 2004 and 2008 for Mac allows user-assisted remote attackers to execute arbitrary code via malformed tags in rich text, aka "Excel Rich Text Validation Vulnerability."

Affected vendor

Microsoft

Affected product

Excel

CVSS vector

AV:N/AC:M/Au:N/C:C/I:C/A:C

Weakness type (CWE)

CWE-20 — Improper Input Validation
CWE-94 — Code Injection

Published

2008-03-11

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable over the network, medium attack complexity, requiring no authentication. Successful exploitation leads to complete impact to confidentiality, complete impact to integrity, complete impact to availability.

Its EPSS score of 48.2% reflects a moderate probability of exploitation activity in the wild over the next 30 days, placing it among the most exploited CVEs currently tracked.

Check your external exposure to CVE-2008-0116

Confirm whether Microsoft Excel is running on any internet-facing host or subdomain.
Match discovered service fingerprints against the version affected by CVE-2008-0116.
Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2008-0116

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2008-0116 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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