CVE-2013-2556
CVE-2013-2556 is a high-severity vulnerability in Microsoft Windows Vista with a CVSS 2.0 base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.
Key facts
- Severity: High (CVSS 2.0 base score 7.5)
- EPSS exploit prediction: 8% (94th percentile)
- Actively exploited: Not listed in CISA KEV
- Affected product: Microsoft Windows Vista
- Published:
- Last modified:
Description
Unspecified vulnerability in Microsoft Windows Vista SP2, Windows Server 2008 SP2 and R2 SP1, and Windows 7 through SP1 allows attackers to bypass the ASLR protection mechanism via unknown vectors, as demonstrated against Adobe Flash Player by VUPEN during a Pwn2Own competition at CanSecWest 2013, aka "ASLR Security Feature Bypass Vulnerability."
Frequently asked questions
- What is CVE-2013-2556?
- Unspecified vulnerability in Microsoft Windows Vista SP2, Windows Server 2008 SP2 and R2 SP1, and Windows 7 through SP1 allows attackers to bypass the ASLR protection mechanism via unknown vectors, as demonstrated against Adobe Flash Player by VUPEN during a Pwn2Own competition at CanSecWest 2013, aka "ASLR Security Feature Bypass Vulnerability."
- How severe is CVE-2013-2556?
- CVE-2013-2556 has a CVSS 2.0 base score of 7.5, rated high severity.
- Is CVE-2013-2556 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 8% (94th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2013-2556?
- CVE-2013-2556 primarily affects Microsoft Windows Vista. In total, 8 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
- How do I fix CVE-2013-2556?
- 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-2013-2556 published?
- CVE-2013-2556 was published on 2013-03-11 and last updated on 2026-06-16.
References
- http://h30499.www3.hp.com/t5/HP-Security-Research-Blog/Pwn2Own-2013/ba-p/5981157
- http://twitter.com/VUPEN/statuses/309713355466227713
- http://twitter.com/thezdi/statuses/309756927301283840
- http://www.us-cert.gov/ncas/alerts/TA13-225A
- https://docs.microsoft.com/en-us/security-updates/securitybulletins/2013/ms13-063
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A18132
Affected products (8)
- cpe:2.3:o:microsoft:windows_vista:*:sp2:*:*:*:*:*:*
- cpe:2.3:o:microsoft:windows_7:-:sp1:x64:*:*:*:*:*
- cpe:2.3:o:microsoft:windows_7:-:sp1:x86:*:*:*:*:*
- cpe:2.3:o:microsoft:windows_server_2008:*:sp2:itanium:*:*:*:*:*
- cpe:2.3:o:microsoft:windows_server_2008:*:sp2:x64:*:*:*:*:*
- cpe:2.3:o:microsoft:windows_server_2008:*:sp2:x86:*:*:*:*:*
- cpe:2.3:o:microsoft:windows_server_2008:*:r2:itanium:*:*:*:*:*
- cpe:2.3:o:microsoft:windows_server_2008:*:r2:x64:*:*:*:*:*
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