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01 Record

CVE-2011-0091

Kerberos in Microsoft Windows Server 2008 R2 and Windows 7 does not prevent a session from changing from strong encryption to DES encryption, which allows man-in-the-middle attackers to spoof network

UnratedPUBLISHEDCNA: microsoft
CNA base scoreUnratedNo CNA CVSS vector
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02 Description

Kerberos in Microsoft Windows Server 2008 R2 and Windows 7 does not prevent a session from changing from strong encryption to DES encryption, which allows man-in-the-middle attackers to spoof network

03 Exploitation and scoring

Exploitation
Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
SSVC decision
Not assessed by CISA
EPSS probability
5.48% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 92.5% of scored records. A rank, not a probability.
NVD base score
The NVD has published no score for this record
NVD CVSS vector
No NVD score to derive
NVD analysis status
Modified. NVD last modified this record on 2026-06-16.
Red Hat severity
No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published
2011-02-10 15:00Z15 YR AGO
Last updated
2024-08-06 21:43Z2 YR AGO
Reserved
2010-12-21
Assigning CNA
microsoft
Record state
PUBLISHED
Severity
Not rated by the issuing CNA
CNA CVSS vector
Not published by the issuing CNA
Weaknesses
  • CWE-287Improper AuthenticationClass
Data version
5.1
Document digest
2be519c5c495c041a45d13ca4d38b784a7bf07fc0e9e2e83a79e745c82cc538d

05 Affected products

VendorProductVersionsPlatforms
microsoftwindows_7Not specified—
microsoftwindows_server_2008Not specified—

06 References