CVE-2002-1101

mediumpriority · track · 31EPSS 0.034 · 89 %ileexploit · functionalEUUS

grimoire priorityP1 · Urgent

Exploitable?

Public exploit

1 exploit · functional

Likely / severe?

3.38% (89th) EPSS

CVSS 5 · medium

Is it mine?

24 products

Check your exposure

Who says so?

2 sources

enisa_euvd · nvd

EPSS · scored 2026-10-27

Cisco VPN 3000 Concentrator 2.2.x, 3.6(Rel), and 3.x before 3.5.5, allows remote attackers to cause a denial of service via a long user name.

cvss

Technical severity, 0–10. One row per scoring source.

5.0

010

base score 0–10 · higher = more severe · hover a vector to decode

v2.05mediumAV:N/AC:L/Au:N/C:N/I:N/A:Pprimary · NVD / NIST USexploitability 10 · impact 2.9

v2.04.5mediumAV:N/AC:L/Au:N/C:N/I:N/A:P/E:POCsecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-20USLLM-inferredCWE-400USLLM-inferred

exploits (1)

Public proof-of-concept and weaponised exploit code.

EDB-21770Cisco VPN 3000 Series Concentrator Client - Authentication Denial of Servicefunctional · exploit_db

affected products (24)

Products and version ranges known to be affected.

n/a n/a≤ n/aenisa_euvdEU
cisco vpn 3000 concentrator series software= 2.0nvdUScpe:2.3:o:cisco:vpn_3000_concentrator_series_software:*:*:*:*:*:*:*:*
cisco vpn 3000 concentrator series software= 2.5.2.anvdUScpe:2.3:o:cisco:vpn_3000_concentrator_series_software:*:*:*:*:*:*:*:*
cisco vpn 3000 concentrator series software= 2.5.2.bnvdUScpe:2.3:o:cisco:vpn_3000_concentrator_series_software:*:*:*:*:*:*:*:*
cisco vpn 3000 concentrator series software= 2.5.2.cnvdUScpe:2.3:o:cisco:vpn_3000_concentrator_series_software:*:*:*:*:*:*:*:*
cisco vpn 3000 concentrator series software= 2.5.2.dnvdUScpe:2.3:o:cisco:vpn_3000_concentrator_series_software:*:*:*:*:*:*:*:*
cisco vpn 3000 concentrator series software= 2.5.2.fnvdUScpe:2.3:o:cisco:vpn_3000_concentrator_series_software:*:*:*:*:*:*:*:*
cisco vpn 3000 concentrator series software= 3.0nvdUScpe:2.3:o:cisco:vpn_3000_concentrator_series_software:*:*:*:*:*:*:*:*
cisco vpn 3000 concentrator series software= 3.0(rel)nvdUScpe:2.3:o:cisco:vpn_3000_concentrator_series_software:*:*:*:*:*:*:*:*
cisco vpn 3000 concentrator series software= 3.0.3.anvdUScpe:2.3:o:cisco:vpn_3000_concentrator_series_software:*:*:*:*:*:*:*:*
cisco vpn 3000 concentrator series software= 3.0.3.bnvdUScpe:2.3:o:cisco:vpn_3000_concentrator_series_software:*:*:*:*:*:*:*:*
cisco vpn 3000 concentrator series software= 3.0.4nvdUScpe:2.3:o:cisco:vpn_3000_concentrator_series_software:*:*:*:*:*:*:*:*
cisco vpn 3000 concentrator series software= 3.1nvdUScpe:2.3:o:cisco:vpn_3000_concentrator_series_software:*:*:*:*:*:*:*:*
cisco vpn 3000 concentrator series software= 3.1(rel)nvdUScpe:2.3:o:cisco:vpn_3000_concentrator_series_software:*:*:*:*:*:*:*:*
cisco vpn 3000 concentrator series software= 3.1.1nvdUScpe:2.3:o:cisco:vpn_3000_concentrator_series_software:*:*:*:*:*:*:*:*
cisco vpn 3000 concentrator series software= 3.1.2nvdUScpe:2.3:o:cisco:vpn_3000_concentrator_series_software:*:*:*:*:*:*:*:*
cisco vpn 3000 concentrator series software= 3.1.4nvdUScpe:2.3:o:cisco:vpn_3000_concentrator_series_software:*:*:*:*:*:*:*:*
cisco vpn 3000 concentrator series software= 3.5(rel)nvdUScpe:2.3:o:cisco:vpn_3000_concentrator_series_software:*:*:*:*:*:*:*:*
cisco vpn 3000 concentrator series software= 3.5.1nvdUScpe:2.3:o:cisco:vpn_3000_concentrator_series_software:*:*:*:*:*:*:*:*
cisco vpn 3000 concentrator series software= 3.5.2nvdUScpe:2.3:o:cisco:vpn_3000_concentrator_series_software:*:*:*:*:*:*:*:*

showing 20 of 24

also known as (2)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

enisa_euvd nvd NVD CVE.org MITRE

published 2002-10-04modified 2026-06-16

references (2)

External citations — patches, advisories, analysis.

scry

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