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Fencer Intel
critical 9.3

CVE-2011-1248 in the critical feed json

WINS in Microsoft Windows Server 2003 SP2 and Server 2008 Gold, SP2, R2, and R2 SP1 does not properly handle socket send exceptions, which…

published 2011-05-13 15 y ago modified 2026-06-16 4 mo ago also EUVD-2011-1256

cvss
9.3
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
47.6%
EPSS 47.6% chance of exploitation in 30 days, percentile 98%
public exploits
1
Exploit-DB

Summary

WINS in Microsoft Windows Server 2003 SP2 and Server 2008 Gold, SP2, R2, and R2 SP1 does not properly handle socket send exceptions, which allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption) via crafted packets, related to unintended stack-frame values and buffer passing, aka "WINS Service Failed Response Vulnerability."

Timeline

  1. Published
  2. First public exploit (EDB-17830)

Exploit prediction

47.57% chance of exploitation in the next 30 days, higher than 98% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

  • EDB-17830 Microsoft WINS Service 5.2.3790.4520 - Memory Corruption (MS11-035) dos, 2011-09-13

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-20 Improper Input Validation

References

Sources

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.