CVE-2010-3035: Cisco IOS XR Border Gateway Protocol (BGP) Denial-of-Service Vulnerability

CVE-2010-3035 · Severity: critical · CVSS 7.5 · Exploited in the wild · Published 2022-03-25

Cisco IOS XR software fails to properly handle unrecognized transitive BGP attributes. A remote attacker can trigger a denial-of-service condition (peering reset) by sending a crafted prefix announcement containing specific attribute type codes, such as type code 99.

Technologies: Cisco IOS XR. Vendors: Cisco.

Quick answers

Is CVE-2010-3035 exploited in the wild?
Yes. CVE-2010-3035 is known to be exploited in the wild, first recorded on 25 March 2022. Treat it as urgent.
How severe is CVE-2010-3035?
Critical severity, with a CVSS score of 7.5, published 25 March 2022.
Which products and versions are affected?
Cisco IOS XR 3.4.0 through 3.9.1.
Is there a fix for CVE-2010-3035?
No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
How is CVE-2010-3035 attacked?
It is attacked over the network, in an operating system.
Am I affected by CVE-2010-3035?
Check whether you run Cisco IOS XR. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Affected products

  • Cisco IOS XR 3.4.0 through 3.9.1

Timeline

  • 2010-08-27: exploited: Demonstrated in the wild with attribute type code 99.
  • 2022-03-25: kev added: Added to CISA Known Exploited Vulnerabilities Catalog.

This page as Markdown. Free to reuse under CC BY 4.0 with a link back.