THREATPORT/VULNERABILITY/CVE-2005-4197
HIGH SEVERITY

CVE-2005-4197

Ssl Vpn vulnerability

CVSS
7.5
EPSS
11.9%
EPSS pct
96th
Exploited
No known
tunnelform.yaws in Nortel SSL VPN 4.2.1.6 allows remote attackers to execute arbitrary commands via a link in the a parameter, which is executed with extra privileges in a cryptographically signed Java Applet.
Affected vendor
Nortel
Affected product
Ssl Vpn
CVSS vector
AV:N/AC:L/Au:N/C:P/I:P/A:P
Published
2005-12-13

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, partial impact to integrity, partial impact to availability.

Its EPSS score of 11.9% reflects a moderate probability of exploitation activity in the wild over the next 30 days, placing it above 96% of all scored CVEs.

Check your external exposure to CVE-2005-4197

  • Confirm whether Nortel Ssl Vpn is running on any internet-facing host or subdomain.
  • Match discovered service fingerprints against the version affected by CVE-2005-4197.
  • Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2005-4197

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2005-4197 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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