CVE-2010-3035

Cisco IOS XR Border Gateway Protocol (BGP) Denial-of-Service

7.5 HIGHActively exploited (CISA KEV)EPSS 5.67%

Published30 Aug 2010
Added to CISA KEV25 Mar 2022
Remediation due15 Apr 2022

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.

CVSS 3.1 breakdown

Attack vectorNetwork

Attack complexityLow

Privileges requiredNone

User interactionNone

ScopeUnchanged

ConfidentialityNone

IntegrityNone

AvailabilityHigh

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected products

Cisco iOS XR≥ 3.4.0 ≤ 3.9.1

Remediation

No fixed version is recorded in the NVD data. Check the vendor advisory for the latest guidance.

Patch & vendor advisories

References

http://mailman.nanog.org/pipermail/nanog/2010-August/024837.htmlMailing List
http://osvdb.org/67696Broken Link
http://secunia.com/advisories/41190Broken Link
https://exchange.xforce.ibmcloud.com/vulnerabilities/61443VDB EntryVendor Advisory
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2010-3035US Government Resource
http://www.cisco.com/en/US/products/products_security_advisory09186a0080b4411f.shtmlBroken LinkVendor Advisory
http://www.securitytracker.com/id?1024371Broken LinkThird Party AdvisoryVDB Entry
http://www.vupen.com/english/advisories/2010/2227Broken Link

Frequently asked

Is CVE-2010-3035 being actively exploited?

Yes. CVE-2010-3035 is listed in the CISA Known Exploited Vulnerabilities (KEV) catalog, added 25 Mar 2022.

How severe is CVE-2010-3035?

CVE-2010-3035 has a CVSS 3.1 base score of 7.5, rated high. EPSS estimates a 5.67% probability of exploitation.

Which products are affected by CVE-2010-3035?

Affected products include Cisco iOS XR.

How do I fix CVE-2010-3035?

Apply the vendor's patch or advisory guidance, then verify no affected versions remain across your devices.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2010-3035 against the real software inventory on every managed device, every day. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. Because it is on the CISA KEV list, Secuno flags any affected asset as top-priority automatically. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

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Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.