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CVE-2011-0654

84
FAUCET Score

CVE-2011-0654 is a critical integer underflow vulnerability in the CIFS browser service (Mrxsmb.sys or bowser.sys) affecting various versions of Microsoft Windows, including XP, Server 2003, Vista, Server 2008, and Windows 7. This flaw, dubbed "Browser Pool Corruption Vulnerability," allows remote unauthenticated attackers to execute arbitrary code or cause a denial of service (system crash) via a specially crafted BROWSER ELECTION message, leading to a heap-based buffer overflow. With a CVSS score of 10.0 and a FAUCET Risk Score of 99/100, this vulnerability is considered extremely severe due to its network-based attack vector, low complexity, and complete impact on confidentiality, integrity, and availability. While not listed in CISA's KEV catalog, exploit code is publicly available, including a Metasploit module for denial of service and an ExploitDB entry for remote heap overflow, indicating its exploitability. Despite the availability of exploit code, there is minimal community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
All Versions ImpactedCPE matchmatch criteria
cpe:2.3:o:microsoft:windows_2003_server:*:*:*:*:*:*:*:*
All Versions ImpactedCPE matchmatch criteria
cpe:2.3:o:microsoft:windows_2003_server:*:r2:*:*:*:*:*:*
All Versions ImpactedCPE matchmatch criteria
cpe:2.3:o:microsoft:windows_2003_server:*:r2:x64:*:*:*:*:*
All Versions ImpactedCPE matchmatch criteria
cpe:2.3:o:microsoft:windows_2003_server:*:sp2:itanium:*:*:*:*:*
All Versions ImpactedCPE matchmatch criteria
cpe:2.3:o:microsoft:windows_server_2003:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

10.0HIGH

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

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

Exploit Intelligence

EPSS Score
68.08%
Probability of exploitation in next 30 days
EPSS Percentile
99.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
ExploitDB: EDB-16166 · Feb 14, 2011
This CVE's current EPSS score of 0.6808 is in the 99th percentile among its peer group of 51,485 CVEs.

Social Chatter

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

No media coverage found for this CVE.

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

archives.neohapsis.com / archives/fulldisclosure/2011-02/0284.html
blogs.technet.com / b/mmpc/archive/2011/02/16/my-sweet-valentine-the-cifs-browser-protocol-heap-corruption-vulnerability.aspx
blogs.technet.com / b/srd/archive/2011/02/16/notes-on-exploitability-of-the-recent-windows-browser-protocol-issue.aspx
docs.microsoft.com / en-us/security-updates/securitybulletins/2011/ms11-019
secunia.com / advisories/43299
Vendor Advisory
exchange.xforce.ibmcloud.com / vulnerabilities/65376
oval.cisecurity.org / repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A12637
exploit-db.com / exploits/16166
Exploit
kb.cert.org / vuls/id/323172
US Government Resource
securityfocus.com / bid/46360
Exploit
securitytracker.com / id
us-cert.gov / cas/techalerts/TA11-102A.html
US Government Resource
vupen.com / english/advisories/2011/0394
Vendor Advisory
vupen.com / english/advisories/2011/0938
Vendor Advisory