CVE-2005-4826
CVE-2005-4826 is a medium-severity vulnerability in Cisco Ios with a CVSS 2.0 base score of 6.1. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.
Key facts
- Severity: Medium (CVSS 2.0 base score 6.1)
- EPSS exploit prediction: 1% (58th percentile)
- Actively exploited: Not listed in CISA KEV
- Affected product: Cisco Ios
- Published:
- Last modified:
Description
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.
Frequently asked questions
- What is CVE-2005-4826?
- 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.
- How severe is CVE-2005-4826?
- CVE-2005-4826 has a CVSS 2.0 base score of 6.1, rated medium severity.
- Is CVE-2005-4826 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (58th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2005-4826?
- CVE-2005-4826 affects Cisco Ios. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2005-4826?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- When was CVE-2005-4826 published?
- CVE-2005-4826 was published on 2005-12-31 and last updated on 2026-06-16.
References
- http://osvdb.org/33013
- http://secunia.com/advisories/23892
- http://securitytracker.com/id?1017568
- http://www.blackhat.com/html/bh-europe-05/bh-eu-05-speakers.html#Berrueta
- http://www.cisco.com/en/US/products/products_security_response09186a00807d1a81.html
- http://www.s21sec.com/en/avisos/s21sec-034-en.txt
- http://www.securityfocus.com/archive/1/458240/100/0/threaded
- http://www.securityfocus.com/archive/1/458554/100/0/threaded
- http://www.securityfocus.com/bid/22268
- http://www.vupen.com/english/advisories/2007/0414
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A5544
Affected products (1)
- cpe:2.3:o:cisco:ios:12.1\(22\)ea3:*:*:*:*:*:*:*
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