CVE-2005-4826: n/a vulnerability

CVE-2005-4826: Unspecified vulnerability in the VLAN Trunking Protocol (VTP) feature in Cisco IOS 12.1(22)EA3 on Catalyst...

Unspecified vulnerability in the VLAN Trunking Protocol (VTP) feature in Cisco IOS 12.1(22)EA3 on Catalyst 2950T switches allows remote attackers to cause a denial of service (device reboot) via a crafted Subset-Advert message packet, a different issue than CVE-2006-4774, CVE-2006-4775, and CVE-2006-4776.

UnknownCVSS not scoredNot KEV-listedUpdatedAug 8, 2024, 00:01 UTC (UTC+00:00)

Security readout for executives and security teams

This is an old Cisco switch denial-of-service issue. A crafted VTP Subset-Advert packet can reboot affected Catalyst 2950T switches running Cisco IOS 12.1(22)EA3. The business impact is network disruption, not data theft, based on the supplied sources. Exposure appears limited to environments with Cisco Catalyst 2950T switches running IOS 12.1(22)EA3 where an attacker can deliver VTP traffic. The supplied affected-products metadata is incomplete, so confirm against Cisco's advisory and local inventory. Treat this as a legacy network resilience risk. Prioritize remediation if the named switch model and IOS release remain in service, especially in critical network segments. If not present, document non-exposure and close after validation. Mitigation focus: Check Cisco's advisory for fixed software, workarounds, and affected-release details.; Identify and prioritize any Catalyst 2950T devices running IOS 12.1(22)EA3.; Retire or upgrade unsupported legacy switches where vendor fixes are unavailable..

Prepared: Jun 29, 2026, 07:49 UTC (UTC+00:00)

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.

ATT&CK lookup starting points

Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.

cve · low confidence lookup

CVE-2005-4826 mapping review

Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.

Open ATT&CK lookup

Vulnerability profileCVE Program record

Severity: Unknown
CVSS: Not scored
Known Exploited: No
Published: Jan 31, 2007, 11:00 UTC (UTC+00:00)

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

0CVSS vectors

0Timeline events

0ADP providers

2Source links

CVSS and timeline data

No CVSS vectors or timeline events were available in the normalized CVE source material.

Source materials

CVE List V5 sourceCVE List V5
oval:org.mitre.oval:def:5544CVE reference · vdb-entry, signature

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus

n/an/an/aListed

Weakness

CWE details

No CWE listed

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.