CVE-2011-1243 in the critical feed json
The Windows Messenger ActiveX control in msgsc.dll in Microsoft Windows XP SP2 and SP3 allows remote attackers to execute arbitrary code vi…
published 2011-04-13 15 y ago modified 2026-06-16 4 mo ago also EUVD-2011-1251
- cvss
- 9.3
- version 2.0, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 29.3%
- EPSS 29.3% chance of exploitation in 30 days, percentile 98%
- public exploits
- 0
- none known
Summary
The Windows Messenger ActiveX control in msgsc.dll in Microsoft Windows XP SP2 and SP3 allows remote attackers to execute arbitrary code via unspecified vectors that "corrupt the system state," aka "Microsoft Windows Messenger ActiveX Control Vulnerability."
Exploit prediction
29.32% chance of exploitation in the next 30 days, higher than 98% of all scored CVEs (FIRST EPSS, 2026-11-09).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 2.0 | 9.3 | AV:N/AC:M/Au:N/C:C/I:C/A:C |
Classification
- Weakness
-
- CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer
References
-
docs.microsoft.com
/en-us/security-updates/securitybulletins/2011/ms11-027
vendor-advisory
-
oval.cisecurity.org
/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A12524
vdb-entry, signature
-
securityfocus.com
/bid/47197
vdb-entry
-
osvdb.org
/71788
vdb-entry
-
secunia.com
/advisories/44159
third-party-advisory
Sources
- CVE List CVE-2011-1243
- NVD CVE-2011-1243
Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.