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CVE-2013-2556

22
FAUCET Score

CVE-2013-2556 is an unspecified vulnerability affecting Microsoft Windows Vista SP2, Windows Server 2008 SP2 and R2 SP1, and Windows 7 through SP1. This flaw allows attackers to bypass the Address Space Layout Randomization (ASLR) protection mechanism through unknown vectors, as demonstrated during the Pwn2Own 2013 competition. With a CVSS score of 7.5, this vulnerability is considered highly severe, indicating a network-based attack with low complexity that could lead to partial compromise of confidentiality, integrity, and availability. Its FAUCET Risk Score of 94/100 further emphasizes its critical nature. While there is no indication of active exploitation in the KEV catalog, and no public exploit code is available via Metasploit, Nuclei, or ExploitDB, the vulnerability garnered significant attention with one media article and one community discussion mention, both exceeding the average for CVEs.

Impacted Technologies

VendorProductVersion(s)CPE
All Versions ImpactedCPE matchmatch criteria
cpe:2.3:o:microsoft:windows_vista:*:sp2:*:*:*:*:*:*
Range not provided by sourceCPE matchmatch criteria
cpe:2.3:o:microsoft:windows_7:-:sp1:x64:*:*:*:*:*
Range not provided by sourceCPE matchmatch criteria
cpe:2.3:o:microsoft:windows_7:-:sp1:x86:*:*:*:*:*
All Versions ImpactedCPE matchmatch criteria
cpe:2.3:o:microsoft:windows_server_2008:*:sp2:itanium:*:*:*:*:*
All Versions ImpactedCPE matchmatch criteria
cpe:2.3:o:microsoft:windows_server_2008:*:sp2:x64:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

7.5HIGH

AV:N/AC:L/Au:N/C:P/I:P/A:P

Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Exploitability Score
10.0
Impact Score
6.4
CvssVersion
2.0

Exploit Intelligence

EPSS Score
7.58%
Probability of exploitation in next 30 days
EPSS Percentile
93.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0757 is in the 90th percentile among its peer group of 51,553 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

h30499.www3.hp.com / t5/HP-Security-Research-Blog/Pwn2Own-2013/ba-p/5981157
docs.microsoft.com / en-us/security-updates/securitybulletins/2013/ms13-063
oval.cisecurity.org / repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A18132
twitter.com / thezdi/statuses/309756927301283840
twitter.com / VUPEN/statuses/309713355466227713
us-cert.gov / ncas/alerts/TA13-225A
US Government Resource