How severe is CVE-2002-0990?

CVE-2002-0990 has a CVSS 2.0 base score of 5.0, rated medium severity.

Is CVE-2002-0990 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-2002-0990?

CVE-2002-0990 primarily affects Symantec Enterprise Firewall. In total, 14 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2002-0990?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2002-0990 published?

CVE-2002-0990 was published on 2002-10-28 and last updated on 2026-06-16.

CVE-2002-0990

CVE-2002-0990 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

Severity: Medium (CVSS 2.0 base score 5.0)
EPSS exploit prediction: 2% (74th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Symantec Enterprise Firewall
Published: 2002-10-28
Last modified: 2026-06-16

Description

The web proxy component in Symantec Enterprise Firewall (SEF) 6.5.2 through 7.0, Raptor Firewall 6.5 and 6.5.3, VelociRaptor, and Symantec Gateway Security allow remote attackers to cause a denial of service (connection resource exhaustion) via multiple connection requests to domains whose DNS server is unresponsive or does not exist, which generates a long timeout.

Frequently asked questions

What is CVE-2002-0990?: The web proxy component in Symantec Enterprise Firewall (SEF) 6.5.2 through 7.0, Raptor Firewall 6.5 and 6.5.3, VelociRaptor, and Symantec Gateway Security allow remote attackers to cause a denial of service (connection resource exhaustion) via multiple connection requests to domains whose DNS server is unresponsive or does not exist, which generates a long timeout.
How severe is CVE-2002-0990?: CVE-2002-0990 has a CVSS 2.0 base score of 5.0, rated medium severity.
Is CVE-2002-0990 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-2002-0990?: CVE-2002-0990 primarily affects Symantec Enterprise Firewall. In total, 14 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2002-0990?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2002-0990 published?: CVE-2002-0990 was published on 2002-10-28 and last updated on 2026-06-16.

References

Affected products (14)

cpe:2.3:a:symantec:enterprise_firewall:6.5.2:*:windows_2000_nt:*:*:*:*:*
cpe:2.3:a:symantec:enterprise_firewall:7.0:*:solaris:*:*:*:*:*
cpe:2.3:a:symantec:enterprise_firewall:7.0:*:windows_2000_nt:*:*:*:*:*
cpe:2.3:a:symantec:raptor_firewall:6.5:*:windows_nt:*:*:*:*:*
cpe:2.3:a:symantec:raptor_firewall:6.5.3:*:solaris:*:*:*:*:*
cpe:2.3:a:symantec:velociraptor:500:*:*:*:*:*:*:*
cpe:2.3:a:symantec:velociraptor:700:*:*:*:*:*:*:*
cpe:2.3:a:symantec:velociraptor:1000:*:*:*:*:*:*:*
cpe:2.3:a:symantec:velociraptor:1100:*:*:*:*:*:*:*
cpe:2.3:a:symantec:velociraptor:1200:*:*:*:*:*:*:*
cpe:2.3:a:symantec:velociraptor:1300:*:*:*:*:*:*:*
cpe:2.3:h:symantec:gateway_security:5110:*:*:*:*:*:*:*
cpe:2.3:h:symantec:gateway_security:5200:*:*:*:*:*:*:*
cpe:2.3:h:symantec:gateway_security:5300:*:*:*:*:*:*:*

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