CVE-2011-4667
MEDIUMCisco IOS 15.2(1)T, 15.2(1)T1, 15.2(2)T - Unencrypted Packet Exposure via IPSec
Title source: llmDescription
The encryption library in Cisco IOS Software 15.2(1)T, 15.2(1)T1, and 15.2(2)T, Cisco NX-OS in Cisco MDS 9222i Multiservice Modular Switch, Cisco MDS 9000 18/4-Port Multiservice Module, and Cisco MDS 9000 Storage Services Node module before 5.2(6), and Cisco IOS in Cisco VPN Services Port Adaptor for Catalyst 6500 12.2(33)SXI, and 12.2(33)SXJ when IP Security (aka IPSec) is used, allows remote attackers to obtain unencrypted packets from encrypted sessions.
References (2)
Core 2
Core References
Vendor Advisory vendor-advisory
x_refsource_cisco
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/Cisco-SA-20120913-CVE-2011-4667
Vendor Advisory vendor-advisory
x_refsource_cisco
https://www.cisco.com/c/en/us/td/docs/switches/lan/catalyst6500/ios/12-2SX/release/notes/ol_14271/caveats_SXI_rebuilds.html
Scores
CVSS v3
5.9
EPSS
0.0069
EPSS Percentile
48.9%
Attack Vector
NETWORK
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
Details
CWE
CWE-310
Status
published
Products (6)
cisco/ios
12.2\(33\)sxi
cisco/ios
12.2\(33\)sxj
cisco/ios
15.2\(1\)t
cisco/ios
15.2\(1\)t1
cisco/ios
15.2\(2\)t
cisco/nx-os
5.0\(5\)
Published
Sep 25, 2017
Tracked Since
Feb 18, 2026