ExploitedIn CISA KEV

CVE-2010-3035

Exploitation confirmed. First attested on 2022-03-25 by CISA-ADP, CISA KEV, GCVE · kevintel.

Published2010-08-30

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

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.

Timeline

dates in UTC

2010-08-3021:00CVE publishedNVD
2022-03-25Added to the CISA KEV catalogCISA KEV
2022-03-25Listed as exploited by GCVEGCVE
2022-03-25Exploitation first reportedCISA KEV
2024-11-0817:40SSVC exploitation set to activeCISA-ADP

Observed activity

isMalicious corpus · updated 2026-10-23 18:48 UTC

Indicators tagged with this CVE, per day0 indicators over 7 days

Block these indicators

Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2010-3035?format=txt
CSV export: https://api.ismalicious.com/edl/cve/CVE-2010-3035?format=csv
TAXII collection of exploited CVEs
The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD

Cisco ios xr

Branch	Affected	Fixed in	Source
3.x	≥ 3.4.0, ≤ 3.9.1	no fix published	NVD

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Fix

CISA’s required action: Apply updates per vendor instructions.due 2022-04-15

Advisories and patches

www.cisco.comVendor Advisory
exchange.xforce.ibmcloud.comVendor Advisory

Detection

Nuclei template: none so far
Exploit-DB: no entry
Proof-of-concept repositories: none listed

CISA Known Exploited Vulnerability

Date Added: 2022-03-25
Patch Due Date: 2022-04-15
Ransomware Use: Unknown
Required Action: Apply updates per vendor instructions.

Sources

CISA KEVKEV entry2022-03-25
GCVEexploitation2022-03-25
CISA-ADPSSVC decisionactive2024-11-08
OpenCVESSVC decisionactive—
CISA-ADPCVSS 3.17.52024-11-08
NVDCVSS 3.17.5read 2026-10-23
NVDCVSS 2.05read 2026-10-23
FIRST EPSSEPSS score5.7 %2026-10-22

Technical details

CVSS v3 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Published: 2010-08-30
Last Modified: 2026-06-16
NVD status: Analyzed

Frequently asked questions

What is CVE-2010-3035?

Is CVE-2010-3035 actively exploited?

Yes. CVE-2010-3035 is on the CISA Known Exploited Vulnerabilities (KEV) catalog, meaning it has been confirmed as actively exploited in the wild. CISA requires federal agencies to patch by 2022-04-15.

What is the CVSS score for CVE-2010-3035?

CVE-2010-3035 has a CVSS v3 base score of 7.5 (HIGH severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

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