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CVE-2002-2139

22
FAUCET Score

CVE-2002-2139 describes a vulnerability in Cisco PIX Firewall versions 6.0.3 and earlier, and 6.1.x to 6.1.3, where duplicate ISAKMP SAs for a VPN session are not properly deleted. This oversight enables local attackers to hijack a user's VPN session through a man-in-the-middle attack. The vulnerability carries a CVSS score of 6.4, indicating a medium severity with potential for partial confidentiality and integrity impact, requiring no authentication. There is no evidence of active exploitation, nor are there known public exploits available in Metasploit, Nuclei, or ExploitDB, despite a relatively high number of community mentions.

Impacted Technologies

VendorProductVersion(s)CPE
6.0CPE matchmatch criteria
cpe:2.3:o:cisco:pix_firewall_software:6.0:*:*:*:*:*:*:*
6.0\(1\)CPE matchmatch criteria
cpe:2.3:o:cisco:pix_firewall_software:6.0\(1\):*:*:*:*:*:*:*
6.0\(2\)CPE matchmatch criteria
cpe:2.3:o:cisco:pix_firewall_software:6.0\(2\):*:*:*:*:*:*:*
6.0\(3\)CPE matchmatch criteria
cpe:2.3:o:cisco:pix_firewall_software:6.0\(3\):*:*:*:*:*:*:*
6.1CPE matchmatch criteria
cpe:2.3:o:cisco:pix_firewall_software:6.1:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

6.4MEDIUM

AV:N/AC:L/Au:N/C:P/I:P/A:N

Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
NONE
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Exploitability Score
10.0
Impact Score
4.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
1.24%
Probability of exploitation in next 30 days
EPSS Percentile
66.2%
Percentile rank of EPSS score among Peer Group
As of 2026-07-24
Model: v2026.06.15
This CVE's current EPSS score of 0.0124 is in the 45th percentile among its peer group of 23,684 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

ciac.org / ciac/bulletins/n-017.shtml
Patch
cisco.com / warp/public/707/pix-multiple-vuln-pub.shtml
iss.net / security_center/static/10660.php
securityfocus.com / bid/6211
Patch