CVE-2012-0159Office Vulnerability
Microsoft Windows XP SP2 and SP3, Windows Server 2003 SP2, Windows Vista SP2, Windows Server 2008 SP2, R2, and R2 SP1, Windows 7 Gold and SP1, and Windows 8 Consumer Preview; Office 2003 SP3, 2007 SP2 and SP3, and 2010 Gold and SP1; Silverlight 4 before 4.1.10329; and…
Published May 8, 2012 · Updated Apr 28, 2026
Key Facts
Patch immediately- CVE-2012-0159 is a critical-severity vulnerability (CVSS 9.3 v2) affecting Office (Microsoft), Silverlight (Microsoft), Windows 7 (Microsoft) and 4 more products.
- It is exploited in the wild, listed in Industry KEV feed since Feb 1, 2015. No public exploit code is known.
- EPSS estimates a 27% probability of exploitation in the next 30 days.
- No fixed version is listed yet; check the vendor advisory for mitigations.
- Brandefense priority: patch immediately, because it is listed as exploited in the wild.
Scores
CVSS v2
9.3
AV:N/AC:M/Au:N/C:C/I:C/A:C
EPSS (30-day exploit likelihood)
27%
Higher than 98.0% of all scored CVEs
Exploit maturity
Exploited (KEV)
ATLAS score
48/100
Publication score, see How it works
Exploitation Verdict
KEV listed
Feb 1, 2015
999 days after publication
Federal due date
None
No federal due date
Ransomware use
Not reported
Attributed actors
None named
Exploit & Defence Guidance
Exploit maturity
Exploited (KEV)
Public exploit code
0
Proof-of-concept links
In-the-wild evidence
2
Reports of active use
Description
Microsoft Windows XP SP2 and SP3, Windows Server 2003 SP2, Windows Vista SP2, Windows Server 2008 SP2, R2, and R2 SP1, Windows 7 Gold and SP1, and Windows 8 Consumer Preview; Office 2003 SP3, 2007 SP2 and SP3, and 2010 Gold and SP1; Silverlight 4 before 4.1.10329; and Silverlight 5 before 5.1.10411 allow remote attackers to execute arbitrary code via a crafted TrueType font (TTF) file, aka "TrueType Font Parsing Vulnerability."
Known-Exploited Catalog Listings
| Catalog | Added | Remediation due | Ransomware use |
|---|---|---|---|
| Industry KEV feed | Feb 1, 2015 | n/a | Not reported |
Affected Products
28 affected entries in total| Product | Affected versions | Fixed in |
|---|---|---|
| OfficeMicrosoft | 2003-sp3, 2007-sp2, 2007-sp3, 2010, 2010-sp1 | n/a |
| SilverlightMicrosoft | 4.0.50401.0, 4.0.50524.00, 4.0.50826.0, 4.0.50917.0, 4.0.51204.0, 4.0.60129.0, 4.0.60310.0, 4.0.60531.0 | n/a |
| Windows 7Microsoft | See advisory | n/a |
| Windows 8Microsoft | consumer_preview | n/a |
| Windows Server 2008Microsoft | r2, r2-sp1 | n/a |
Timeline
Publicly disclosed
May 8, 2012
Added to Industry KEV feed
Feb 1, 2015
Last updated
Apr 28, 2026
Weakness Type
- CWE-399
References
- exploitVulnCheck exploitation report
- exploitVulnCheck exploitation report
- otherMS12-034
- otherMS12-039
- other49121
FAQ
Common Questions.
Microsoft Windows XP SP2 and SP3, Windows Server 2003 SP2, Windows Vista SP2, Windows Server 2008 SP2, R2, and R2 SP1, Windows 7 Gold and SP1, and Windows 8 Consumer Preview; Office 2003 SP3, 2007 SP2 and SP3, and 2010 Gold and SP1; Silverlight 4 before 4.1.10329; and Silverlight 5 before 5.1.10411 allow remote attack…
Affected: Office (Microsoft) versions 2003-sp3, 2007-sp2, 2007-sp3, 2010, 2010-sp1; Silverlight (Microsoft) versions 4.0.50401.0, 4.0.50524.00, 4.0.50826.0, 4.0.50917.0, 4.0.51204.0, 4.0.60129.0, 4.0.60310.0, 4.0.60531.0; Windows 7 (Microsoft), among others. The full list is in the CVE brief.
It is exploited in the wild, listed in Industry KEV feed since Feb 1, 2015.
No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.
No public exploit code is known.
No fixed version is listed yet; check the vendor advisory for mitigations.
Brandefense priority: patch immediately, because it is listed as exploited in the wild.
Is CVE-2012-0159 On Your Attack Surface?
Brandefense matches it against the products discovered on your perimeter and opens a finding the day a CVE like this is listed.
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