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CVE-2002-0209

28
FAUCET Score

CVE-2002-0209 describes a vulnerability in Nortel Alteon ACEdirector WebOS 9.0, specifically when Server Load Balancing (SLB) and Cookie-Based Persistence are enabled. Remote attackers can exploit a half-closed session to determine the real IP address of a web server, as ACEdirector fails to translate the server's IP to the virtual IP in this scenario. This vulnerability has a CVSS score of 5.0 (medium severity), indicating a network-based attack with low complexity, requiring no authentication, and primarily impacting confidentiality. While not listed on CISA's KEV catalog, exploit code exists on ExploitDB, and it has garnered significant community discussion, though no Metasploit or Nuclei modules are available.

Impacted Technologies

VendorProductVersion(s)CPE
9.0CPE matchmatch criteria
cpe:2.3:h:nortel:alteon_acedirector:9.0:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

5.0MEDIUM

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

Confidentiality Impact
PARTIAL
Integrity Impact
NONE
Availability Impact
NONE
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Exploitability Score
10.0
Impact Score
2.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
3.32%
Probability of exploitation in next 30 days
EPSS Percentile
87.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-24
Model: v2026.06.15
ExploitDB: EDB-21243 · Dec 20, 2001
This CVE's current EPSS score of 0.0332 is in the 83rd percentile among its peer group of 23,690 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

online.securityfocus.com / archive/1/252455
PatchVendor Advisory
online.securityfocus.com / archive/1/261548
iss.net / security_center/static/8010.php
PatchVendor Advisory
securityfocus.com / bid/3964