How severe is CVE-2013-1291?

CVE-2013-1291 has a CVSS 2.0 base score of 7.1, rated high severity.

Is CVE-2013-1291 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 5% (91st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2013-1291?

CVE-2013-1291 primarily affects Microsoft Windows 7. In total, 7 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2013-1291?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2013-1291 published?

CVE-2013-1291 was published on 2013-04-09 and last updated on 2026-06-16.

CVE-2013-1291

CVE-2013-1291 is a high-severity vulnerability in Microsoft Windows 7 with a CVSS 2.0 base score of 7.1. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-20.

Key facts

Severity: High (CVSS 2.0 base score 7.1)
EPSS exploit prediction: 5% (91st percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-20
Affected product: Microsoft Windows 7
Published: 2013-04-09
Last modified: 2026-06-16

Description

win32k.sys in the kernel-mode drivers in Microsoft Windows XP SP3, Windows Server 2003 SP2, Windows Vista SP2, Windows Server 2008 SP2, Windows 7 Gold and SP1, and Windows 8 allows local users to cause a denial of service (reboot) via a crafted OpenType font, aka "OpenType Font Parsing Vulnerability" or "Win32k Font Parsing Vulnerability."

Frequently asked questions

What is CVE-2013-1291?: win32k.sys in the kernel-mode drivers in Microsoft Windows XP SP3, Windows Server 2003 SP2, Windows Vista SP2, Windows Server 2008 SP2, Windows 7 Gold and SP1, and Windows 8 allows local users to cause a denial of service (reboot) via a crafted OpenType font, aka "OpenType Font Parsing Vulnerability" or "Win32k Font Parsing Vulnerability."
How severe is CVE-2013-1291?: CVE-2013-1291 has a CVSS 2.0 base score of 7.1, rated high severity.
Is CVE-2013-1291 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 5% (91st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2013-1291?: CVE-2013-1291 primarily affects Microsoft Windows 7. In total, 7 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2013-1291?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2013-1291 published?: CVE-2013-1291 was published on 2013-04-09 and last updated on 2026-06-16.

References

Affected products (7)

cpe:2.3:o:microsoft:windows_7:*:*:x86:*:*:*:*:*
cpe:2.3:o:microsoft:windows_7:*:sp1:x86:*:*:*:*:*
cpe:2.3:o:microsoft:windows_8:-:-:x86:*:*:*:*:*
cpe:2.3:o:microsoft:windows_server_2003:*:sp2:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_server_2008:*:sp2:x86:*:*:*:*:*
cpe:2.3:o:microsoft:windows_vista:*:sp2:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_xp:*:sp3:*:*:*:*:*:*

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