CVE-2011-2012 json
Microsoft Forefront Unified Access Gateway (UAG) 2010 Gold, Update 1, Update 2, and SP1 does not properly validate session cookies, which a…
published 2011-10-12 15 y ago modified 2026-06-16 4 mo ago also EUVD-2011-2006
- cvss
- 5.0
- version 2.0, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 16.6%
- EPSS 16.6% chance of exploitation in 30 days, percentile 97%
- public exploits
- 0
- none known
Summary
Microsoft Forefront Unified Access Gateway (UAG) 2010 Gold, Update 1, Update 2, and SP1 does not properly validate session cookies, which allows remote attackers to cause a denial of service (IIS outage) via unspecified network traffic, aka "Null Session Cookie Crash."
Exploit prediction
16.59% chance of exploitation in the next 30 days, higher than 97% of all scored CVEs (FIRST EPSS, 2026-11-09).
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/ms11-079
vendor-advisory
-
securityfocus.com
/bid/49980
vdb-entry
-
oval.cisecurity.org
/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A12799
vdb-entry, signature
Sources
- CVE List CVE-2011-2012
- NVD CVE-2011-2012
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.