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NVD Vulnerability Details :
CVE-2011-2165
Modified
More InfoOfficial Page
Source-cve@mitre.org
View Known Exploited Vulnerability (KEV) details
Published At-23 May, 2011 | 22:55
Updated At-29 Apr, 2026 | 01:13

The STARTTLS implementation in WatchGuard XCS 9.0 and 9.1 does not properly restrict I/O buffering, which allows man-in-the-middle attackers to insert commands into encrypted SMTP sessions by sending a cleartext command that is processed after TLS is in place, related to a "plaintext command injection" attack, a similar issue to CVE-2011-0411.

CISA Catalog
Date AddedDue DateVulnerability NameRequired Action
N/A
Date Added: N/A
Due Date: N/A
Vulnerability Name: N/A
Required Action: N/A
Metrics
TypeVersionBase scoreBase severityVector
Primary2.06.8MEDIUM
AV:N/AC:M/Au:N/C:P/I:P/A:P
Type: Primary
Version: 2.0
Base score: 6.8
Base severity: MEDIUM
Vector:
AV:N/AC:M/Au:N/C:P/I:P/A:P
CPE Matches
WatchGuard Technologies, Inc.
watchguard
>>xcs>>9.0
cpe:2.3:a:watchguard:xcs:9.0:*:*:*:*:*:*:*
WatchGuard Technologies, Inc.
watchguard
>>xcs>>9.1
cpe:2.3:a:watchguard:xcs:9.1:*:*:*:*:*:*:*
Weaknesses
CWE IDTypeSource
CWE-264Primarynvd@nist.gov
CWE ID: CWE-264
Type: Primary
Source: nvd@nist.gov
Evaluator Description
Evaluator Impact

Evaluator Solution

Vendor Statements
References
HyperlinkSourceResource
http://secunia.com/advisories/44753cve@mitre.org
N/A
http://www.kb.cert.org/vuls/id/555316cve@mitre.org
US Government Resource
http://www.kb.cert.org/vuls/id/MAPG-8D9M75cve@mitre.org
US Government Resource
http://www.watchguard.com/support/release-notes/xcs/9/en-US/EN_ReleaseNotes_XCS_9_1_1/EN_ReleaseNotes_WG_XCS_9_1_TLS_Hotfix.pdfcve@mitre.org
N/A
https://exchange.xforce.ibmcloud.com/vulnerabilities/67729cve@mitre.org
N/A
http://secunia.com/advisories/44753af854a3a-2127-422b-91ae-364da2661108
N/A
http://www.kb.cert.org/vuls/id/555316af854a3a-2127-422b-91ae-364da2661108
US Government Resource
http://www.kb.cert.org/vuls/id/MAPG-8D9M75af854a3a-2127-422b-91ae-364da2661108
US Government Resource
http://www.watchguard.com/support/release-notes/xcs/9/en-US/EN_ReleaseNotes_XCS_9_1_1/EN_ReleaseNotes_WG_XCS_9_1_TLS_Hotfix.pdfaf854a3a-2127-422b-91ae-364da2661108
N/A
https://exchange.xforce.ibmcloud.com/vulnerabilities/67729af854a3a-2127-422b-91ae-364da2661108
N/A
Hyperlink: http://secunia.com/advisories/44753
Source: cve@mitre.org
Resource: N/A
Hyperlink: http://www.kb.cert.org/vuls/id/555316
Source: cve@mitre.org
Resource:
US Government Resource
Hyperlink: http://www.kb.cert.org/vuls/id/MAPG-8D9M75
Source: cve@mitre.org
Resource:
US Government Resource
Hyperlink: http://www.watchguard.com/support/release-notes/xcs/9/en-US/EN_ReleaseNotes_XCS_9_1_1/EN_ReleaseNotes_WG_XCS_9_1_TLS_Hotfix.pdf
Source: cve@mitre.org
Resource: N/A
Hyperlink: https://exchange.xforce.ibmcloud.com/vulnerabilities/67729
Source: cve@mitre.org
Resource: N/A
Hyperlink: http://secunia.com/advisories/44753
Source: af854a3a-2127-422b-91ae-364da2661108
Resource: N/A
Hyperlink: http://www.kb.cert.org/vuls/id/555316
Source: af854a3a-2127-422b-91ae-364da2661108
Resource:
US Government Resource
Hyperlink: http://www.kb.cert.org/vuls/id/MAPG-8D9M75
Source: af854a3a-2127-422b-91ae-364da2661108
Resource:
US Government Resource
Hyperlink: http://www.watchguard.com/support/release-notes/xcs/9/en-US/EN_ReleaseNotes_XCS_9_1_1/EN_ReleaseNotes_WG_XCS_9_1_TLS_Hotfix.pdf
Source: af854a3a-2127-422b-91ae-364da2661108
Resource: N/A
Hyperlink: https://exchange.xforce.ibmcloud.com/vulnerabilities/67729
Source: af854a3a-2127-422b-91ae-364da2661108
Resource: N/A
Change History
0Changes found
Details not found