CVE-2011-0654
Integer underflow in the BowserWriteErrorLogEntry function in the Common Internet File System (CIFS) browser service in Mrxsmb.sys or…
- 10.0HighCVSS base score
- 68.4%Exploitation in 30 daysEPSS · top 0.7% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- 2Public exploitsMetasploit, Nuclei and Exploit-DB
Description
Integer underflow in the BowserWriteErrorLogEntry function in the Common Internet File System (CIFS) browser service in Mrxsmb.sys or bowser.sys in Active Directory in Microsoft Windows XP SP2 and SP3, Windows Server 2003 SP2, Windows Vista SP1 and SP2, Windows Server 2008 Gold, SP2, R2, and R2 SP1, and Windows 7 Gold and SP1 allows remote attackers to execute arbitrary code or cause a denial of service (system crash) via a malformed BROWSER ELECTION message, leading to a heap-based buffer overflow, aka "Browser Pool Corruption Vulnerability." NOTE: some of these details are obtained from third party information.
Public exploit
An exploit or proof of concept is public: anyone can try it against an unpatched system. The public collections list a Metasploit module and an Exploit-DB entry for it. A reference of the record is tagged as an exploit.
Show the exploits3
Metasploit modules1 module
- Microsoft Windows Browser Pool DoS (Metasploit module) (opens in a new tab)
auxiliary/dos/windows/smb/ms11_019_electbowserRank normal
Exploit-DB1 entry
- Microsoft Windows Server 2003 - AD BROWSER ELECTION Remote Heap Overflow (Exploit-DB entry) (opens in a new tab)
EDB-ID 16166dos, windowspublished 14 Feb 2011Verified
References tagged exploit1 reference
- 16166 (opens in a new tab)exploitx_refsource_EXPLOIT-DBx_transferred
Modules, templates and exploits as listed by the Metasploit Framework (BSD-3-Clause), ProjectDiscovery's Nuclei templates (MIT) and the Exploit Database (GPLv2), read once a day. Where the data comes from
Timeline
ID reserved
By microsoft
- 19 days later
· 19 days later
Published
- 13 years later
· 13 years later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 2.0 | High10.0 | AV:N/AC:L/Au:N/C:C/I:C/A:C |
- EPSS (exploitation in 30 days)
- 68.4% · top 0.7% of all CVEs (9 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 10.0.
Affected products
n/a
- affected n/a
References
14
- http://blogs.technet.com/b/mmpc/archive/2011/02/16/my-sweet-valentine-the-cifs-browser-protocol-heap-corruption-vulnerability.aspx (opens in a new tab)x_refsource_CONFIRMx_transferred
- TA11-102A (opens in a new tab)third-party-advisoryx_refsource_CERTx_transferred
- VU#323172 (opens in a new tab)third-party-advisoryx_refsource_CERT-VNx_transferred
- 16166 (opens in a new tab)exploitx_refsource_EXPLOIT-DBx_transferred
- ADV-2011-0394 (opens in a new tab)vdb-entryx_refsource_VUPENx_transferred
- http://blogs.technet.com/b/srd/archive/2011/02/16/notes-on-exploitability-of-the-recent-windows-browser-protocol-issue.aspx (opens in a new tab)x_refsource_CONFIRMx_transferred
- 1025328 (opens in a new tab)vdb-entryx_refsource_SECTRACKx_transferred
- 20110214 MS Windows Server 2003 AD Pre-Auth BROWSER ELECTION Remote Heap Overflow (opens in a new tab)mailing-listx_refsource_FULLDISCx_transferred
- 46360 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
- ADV-2011-0938 (opens in a new tab)vdb-entryx_refsource_VUPENx_transferred
- 43299 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- ms-win-server-browser-bo(65376) (opens in a new tab)vdb-entryx_refsource_XFx_transferred
- MS11-019 (opens in a new tab)vendor-advisoryx_refsource_MSx_transferred
- oval:org.mitre.oval:def:12637 (opens in a new tab)vdb-entrysignaturex_refsource_OVALx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2011-0672 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2011-0654)Record last updated .