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CVE-2006-4775

Published: Sep 14, 2006Updated: Apr 16, 2026 Sources: CVE List NVDCWE-399
7.8HIGH
NVD MITRE
EPSS Score
4.8%
Top 9.0%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available
Self-Check
OpenVAS

Description

The VLAN Trunking Protocol (VTP) feature in Cisco IOS 12.1(19) and CatOS allows remote attackers to cause a denial of service by sending a VTP update with a revision value of 0x7FFFFFFF, which is incremented to 0x80000000 and is interpreted as a negative number in a signed context.

No summary for this CVE yet.

CVSS Vector Breakdown

AV:NAC:LAu:NC:NI:NA:C
Exploitability
AV:NAccess Vector
Network
AC:LAccess Complexity
Low
Au:NAuthentication
None
Impact
C:NConfidentiality
None
I:NIntegrity
None
A:CAvailability
Complete
Open in CVSS calculator →

Weaknesses

CWE-399

Affected Products

cisco
commercial·USaka cisco systems, cisco systems inc.
iosOn-premFirmware
Networking Infrastructure / router-switch
catos
Networking Infrastructure
and 1 more affected products View all →

Exploitability

Official Patch Available
Is your org exposed to CVE-2006-4775?We can run the check for you — a free external exposure review, no install. Check my exposure

References

http://secunia.com/advisories/21896
secunia.com
http://secunia.com/advisories/21902
secunia.com
http://securitytracker.com/id?1016843
securitytracker.com
and 9 more references View all →

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