kbrain

CVE-2013-1100

MEDIUM · CVSS 5.4EPSS 1.5%EU EUVD

The HTTP server in Cisco IOS on Catalyst switches does not properly handle TCP socket events, which allows remote attackers to cause a denial of service (device crash) via crafted packets on TCP port (1) 80 or (2) 443, aka Bug ID CSCuc53853.

Key facts

CVSS score
5.4 (v2.0)
Severity
MEDIUM
CVSS vector
AV:N/AC:H/Au:N/C:N/I:N/A:C
Weakness (CWE)
CWE-399
EPSS score
1.5% (74th percentile)
In CISA KEV
No
In EU EUVD
Yes (EUVD-2013-1140)
Published
February 13, 2013
NVD last modified
June 16, 2026
Status
Modified

EU Vulnerability Database (EUVD)

This vulnerability is also tracked by ENISA as EUVD-2013-1140 in the EU Vulnerability Database. Last updated in EUVD on September 16, 2024.

View on the EU Vulnerability Database

Affected products

  • cisco / catalyst 2820
  • cisco / catalyst 2820
  • cisco / catalyst 2900
  • cisco / catalyst 2900
  • cisco / catalyst 2900
  • cisco / catalyst 2900 vlan
  • cisco / catalyst 2900xl
  • cisco / catalyst 2901
  • cisco / catalyst 2902
  • cisco / catalyst 2920
  • cisco / catalyst 2926
  • cisco / catalyst 2926f
  • cisco / catalyst 2926gl
  • cisco / catalyst 2926gs
  • cisco / catalyst 2926t
  • cisco / catalyst 2940
  • cisco / catalyst 2948
  • cisco / catalyst 2948-ge-tx
  • cisco / catalyst 2948g
  • cisco / catalyst 2948g-l3
  • cisco / catalyst 2950
  • cisco / catalyst 2950 lre
  • cisco / catalyst 2955
  • cisco / catalyst 2970
  • cisco / catalyst 2980g
  • cisco / catalyst 2980g-a
  • cisco / catalyst 3000
  • cisco / catalyst 3200
  • cisco / catalyst 3500
  • cisco / catalyst 3500 xl
  • cisco / catalyst 3500xl
  • cisco / catalyst 3550
  • cisco / catalyst 3560
  • cisco / catalyst 3560-e
  • cisco / catalyst 3560-x
  • cisco / catalyst 3750
  • cisco / catalyst 3750 metro
  • cisco / catalyst 3750-e
  • cisco / catalyst 3750-x
  • cisco / catalyst 3750g
  • cisco / catalyst 3900
  • cisco / catalyst 4000
  • cisco / catalyst 4200
  • cisco / catalyst 4224
  • cisco / catalyst 4232
  • cisco / catalyst 4232-13
  • cisco / catalyst 4500
  • cisco / catalyst 4503
  • cisco / catalyst 4506
  • cisco / catalyst 4507r

and 47 more…

References

Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS

Query CVEs from your AI assistant

The CVE/NVD Explorer brain answers CVE questions directly inside Claude, ChatGPT, or any MCP assistant — always up to date, no setup. Add it once and stop pasting advisories into chat.

Add the CVE brain