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CVE-2002-2239

20
FAUCET Score

CVE-2002-2239 describes a denial-of-service vulnerability affecting Cisco Optical Service Modules (OSM) on Catalyst 6500 and 7600 series switches running specific Cisco IOS versions. A remote unauthenticated attacker can exploit this by sending a specially crafted malformed packet, causing the device to hang. This vulnerability has a CVSS score of 7.8 (High), indicating a critical impact on availability with low attack complexity. There is no known public exploit code, Metasploit modules, or evidence of active exploitation, and it has received minimal community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
12.1eCPE matchmatch criteria
cpe:2.3:o:cisco:ios:12.1e:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

7.8HIGH

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

Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
COMPLETE
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Exploitability Score
10.0
Impact Score
6.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
1.60%
Probability of exploitation in next 30 days
EPSS Percentile
73.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0160 is in the 55th percentile among its peer group of 51,485 CVEs.

Social Chatter

No social media mentions found for this CVE.

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

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

exchange.xforce.ibmcloud.com / vulnerabilities/10823
cisco.com / warp/public/707/osm-lc-ios-pkt-vuln-pub.shtml
Patch
securityfocus.com / bid/6358