Microsoft Host Integration Server (HIS) 2004 SP1, 2006 SP1, 2009, and 2010 allows remote attackers to cause a denial of service (SNA Server…

published 2011-10-12 15 y ago modified 2026-06-16 4 mo ago also EUVD-2011-2001

cvss: 5.0; version 2.0, NVD
cisa kev: Not listed; not in CISA's catalog
epss: 23.0%; EPSS 23.0% chance of exploitation in 30 days, percentile 97%
public exploits: 1; Exploit-DB

Microsoft Host Integration Server (HIS) 2004 SP1, 2006 SP1, 2009, and 2010 allows remote attackers to cause a denial of service (SNA Server service outage) via crafted TCP or UDP traffic, aka "Endless Loop DoS in snabase.exe Vulnerability."

Timeline

2011-04-11 First public exploit (EDB-36211)
2011-10-12 Published

Exploit prediction

23.04% chance of exploitation in the next 30 days, higher than 97% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

EDB-36211 Microsoft Host Integration Server 2004-2010 - Remote Denial of Service dos, 2011-04-11

CVSS scores

assigned by	version	score	vector
NVD	2.0	5.0	AV:N/AC:L/Au:N/C:N/I:N/A:P

Classification

Weakness

CWE-20 Improper Input Validation

References

docs.microsoft.com /en-us/security-updates/securitybulletins/2011/ms11-082
vendor-advisory
oval.cisecurity.org /repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A13040
vdb-entry, signature

Sources

CVE List CVE-2011-2007
NVD CVE-2011-2007

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.

Summary