CVE-2002-0309

CVE-2002-0309 is a medium-severity vulnerability in Symantec Enterprise Firewall with a CVSS 2.0 base score of 5.0. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Description

SMTP proxy in Symantec Enterprise Firewall (SEF) 6.5.x includes the firewall's physical interface name and address in an SMTP protocol exchange when NAT translation is made to an address other than the firewall, which could allow remote attackers to determine certain firewall configuration information.

Frequently asked questions

What is CVE-2002-0309?
SMTP proxy in Symantec Enterprise Firewall (SEF) 6.5.x includes the firewall's physical interface name and address in an SMTP protocol exchange when NAT translation is made to an address other than the firewall, which could allow remote attackers to determine certain firewall configuration information.
How severe is CVE-2002-0309?
CVE-2002-0309 has a CVSS 2.0 base score of 5.0, rated medium severity.
Is CVE-2002-0309 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (74th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2002-0309?
CVE-2002-0309 affects Symantec Enterprise Firewall. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2002-0309?
Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2002-0309 published?
CVE-2002-0309 was published on 2002-05-31 and last updated on 2026-06-16.

References

Affected products (1)

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