How severe is CVE-2002-1104?

CVE-2002-1104 has a CVSS 2.0 base score of 5.0, rated medium severity.

Is CVE-2002-1104 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (73rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2002-1104?

CVE-2002-1104 primarily affects Cisco Vpn Client. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2002-1104?

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

When was CVE-2002-1104 published?

CVE-2002-1104 was published on 2002-10-04 and last updated on 2026-06-16.

CVE-2002-1104

CVE-2002-1104 is a medium-severity vulnerability in Cisco Vpn Client 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% (73rd percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Cisco Vpn Client
Published: 2002-10-04
Last modified: 2026-06-16

Description

Cisco Virtual Private Network (VPN) Client software 2.x.x and 3.x before 3.0.5 allows remote attackers to cause a denial of service (crash) via TCP packets with source and destination ports of 137 (NETBIOS).

Frequently asked questions

What is CVE-2002-1104?: Cisco Virtual Private Network (VPN) Client software 2.x.x and 3.x before 3.0.5 allows remote attackers to cause a denial of service (crash) via TCP packets with source and destination ports of 137 (NETBIOS).
How severe is CVE-2002-1104?: CVE-2002-1104 has a CVSS 2.0 base score of 5.0, rated medium severity.
Is CVE-2002-1104 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (73rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2002-1104?: CVE-2002-1104 primarily affects Cisco Vpn Client. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2002-1104?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2002-1104 published?: CVE-2002-1104 was published on 2002-10-04 and last updated on 2026-06-16.

References

Affected products (2)

cpe:2.3:a:cisco:vpn_client:2.0:*:windows:*:*:*:*:*
cpe:2.3:a:cisco:vpn_client:3.0:*:windows:*:*:*:*:*

More vulnerabilities in Cisco Vpn Client

CVE-2002-1106 — High (CVSS 7.5): Cisco Virtual Private Network (VPN) Client software 2.x.x, and 3.x before 3.5.1C, does not properly verify that…
CVE-2002-1107 — High (CVSS 7.5): Cisco Virtual Private Network (VPN) Client software 2.x.x, and 3.x before 3.5.2B, does not generate sufficiently random…
CVE-2015-7600 — High (CVSS 7.2): Cisco VPN Client 5.x through 5.0.07.0440 uses weak permissions for vpnclient.ini, which allows local users to gain…
CVE-2006-2679 — High (CVSS 7.2): Unspecified vulnerability in the VPN Client for Windows Graphical User Interface (GUI) (aka the VPN client dialer) in…
CVE-2002-1447 — High (CVSS 7.2): Buffer overflow in the vpnclient program for UNIX VPN Client before 3.5.2 allows local users to gain administrative…
CVE-2012-3052 — Medium (CVSS 6.9): Untrusted search path vulnerability in Cisco VPN Client 5.0 allows local users to gain privileges via a Trojan horse…

All CVEs affecting Cisco Vpn Client →