CVE-2008-4963

highpriority · track · 29EPSS 0.017 · 77 %ileEUUS
grimoire priorityP2 · Scheduled
Exploitable?
—
no known exploitation
Likely / severe?
1.68% (77th) EPSS
CVSS 7.1 · high
Is it mine?
3 products
Check your exposure
Who says so?
2 sources
enisa_euvd · nvd

EPSS · scored 2026-10-27

Unspecified vulnerability in the VLAN Trunking Protocol (VTP) implementation on Cisco IOS and CatOS, when the VTP operating mode is not transparent, allows remote attackers to cause a denial of service (device reload or hang) via a crafted VTP packet sent to a switch interface configured as a trunk port.

01

cvss

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

7.1
010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 6–7.1

v2.07.1highAV:N/AC:M/Au:N/C:N/I:N/A:Cprimary · NVD / NIST USexploitability 8.6 · impact 6.9
v2.06mediumAV:N/AC:M/Au:N/C:N/I:N/A:C/E:Usecondary · CVSS-BT (t0sche)
02

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-20USLLM-inferredCWE-400USLLM-inferred
03

affected products (3)

Products and version ranges known to be affected.

04

also known as (2)

Other names and identifiers for this entity.

05

sources

Which sources assert this record, and when.

enisa_euvdnvdNVDCVE.orgMITRE
published 2008-11-06modified 2026-06-16
06

references (14)

External citations — patches, advisories, analysis.

scry

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