CVE-2005-3768

Enterprise Firewall vulnerability

CVSS

7.5

EPSS

3.8%

EPSS pct

89th

Exploited

No known

Buffer overflow in the Internet Key Exchange version 1 (IKEv1) implementation in Symantec Dynamic VPN Services, as used in Enterprise Firewall, Gateway Security, and Firewall /VPN Appliance products, allows remote attackers to cause a denial of service and possibly execute arbitrary code via crafted IKE packets, as demonstrated by the PROTOS ISAKMP Test Suite for IKEv1.

Affected vendor

Symantec

Affected product

Enterprise Firewall

CVSS vector

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

Published

2005-11-23

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 3.8% reflects a lower probability of exploitation activity in the wild over the next 30 days, placing it above 89% of all scored CVEs.

Check your external exposure to CVE-2005-3768

Confirm whether Symantec Enterprise Firewall is running on any internet-facing host or subdomain.
Match discovered service fingerprints against the version affected by CVE-2005-3768.
Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2005-3768

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2005-3768 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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