CVE-2010-3035
High 7.5 Exploited in the wild (KEV)
Confirmed active exploitation — CISA KEV catalog
- Name
- Cisco IOS XR Border Gateway Protocol (BGP) Denial-of-Service Vulnerability
- Added to catalog
- Remediation due date (US federal)
- Required action
- Apply updates per vendor instructions.
Description
Cisco IOS XR 3.4.0 through 3.9.1, when BGP is enabled, does not properly handle unrecognized transitive attributes, which allows remote attackers to cause a denial of service (peering reset) via a crafted prefix announcement, as demonstrated in the wild in August 2010 with attribute type code 99, aka Bug ID CSCti62211.
Metrics
- CVSS 3.1
-
7.5 (HIGH)
Score source: NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - EPSS — exploit probability
- 6% (percentile: 93) as of 1 November 2026
Affected products
cisco: ios xr
References
- http://www.cisco.com/en/US/products/products_security_advisory09186a0080b4411f.… Broken LinkVendor Advisory
- https://exchange.xforce.ibmcloud.com/vulnerabilities/61443 VDB EntryVendor Advisory
- http://www.cisco.com/en/US/products/products_security_advisory09186a0080b4411f.… Broken LinkVendor Advisory
- https://exchange.xforce.ibmcloud.com/vulnerabilities/61443 VDB EntryVendor Advisory
- http://mailman.nanog.org/pipermail/nanog/2010-August/024837.html Mailing List
- http://osvdb.org/67696 Broken Link
- http://secunia.com/advisories/41190 Broken Link
- http://www.securitytracker.com/id?1024371 Broken LinkThird Party AdvisoryVDB Entry
- http://www.vupen.com/english/advisories/2010/2227 Broken Link
- http://mailman.nanog.org/pipermail/nanog/2010-August/024837.html Mailing List