CVE-2002-0209

Alteon Acedirector vulnerability

CVSS

5.0

EPSS

3.3%

EPSS pct

87th

Exploited

No known

Nortel Alteon ACEdirector WebOS 9.0, with the Server Load Balancing (SLB) and Cookie-Based Persistence features enabled, allows remote attackers to determine the real IP address of a web server with a half-closed session, which causes ACEdirector to send packets from the server without changing the address to the virtual IP address.

Affected vendor

Nortel

Affected product

Alteon Acedirector

CVSS vector

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

Published

2002-05-16

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable over the network, low attack complexity, requiring no authentication. Successful exploitation leads to partial impact to confidentiality.

Its EPSS score of 3.3% reflects a lower probability of exploitation activity in the wild over the next 30 days, placing it above 87% of all scored CVEs.

Check your external exposure to CVE-2002-0209

Confirm whether Nortel Alteon Acedirector is running on any internet-facing host or subdomain.
Match discovered service fingerprints against the version affected by CVE-2002-0209.
Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2002-0209

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2002-0209 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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