⚠ Actively exploited
Added to CISA KEV on 2022-03-25. Federal agencies required to patch by 2022-04-15. Required action: Apply updates per vendor instructions..

CVE-2010-3035 — Improper Input Validation in Cisco IOS XR

CWE-399CWE-20 — Improper Input Validation6 documents6 sources
Severity
7.5HIGHNVD
EPSS
3.2%
top 12.88%
CISA KEV
KEV
Added 2022-03-25
Due 2022-04-15
Exploit
Exploited in wild
Active exploitation observed
Affected products
1
Cisco IOS XR
Timeline
PublishedAug 30
KEV addedMar 25
KEV dueApr 15
Latest updateMay 17
CISA 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.

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HExploitability: 3.9 | Impact: 3.6

Affected Packages1 packages

▶NVDcisco/ios_xr3.4.0 — 3.9.1

🔴Vulnerability Details

3
GHSA
GHSA-9q29-g37m-5wmp: Cisco IOS XR 3↗2022-05-17
▶
CVEList
CVE-2010-3035: Cisco IOS XR 3↗2010-08-30
▶
VulnCheck
Cisco IOS XR Border Gateway Protocol (BGP) Denial-of-Service Vulnerability↗2010
▶

📋Vendor Advisories

2
CISA
Cisco IOS XR Border Gateway Protocol (BGP) Denial-of-Service Vulnerability↗2022-03-25
▶
Cisco
Cisco IOS XR Software Border Gateway Protocol Vulnerability↗2010-08-28
▶
CVE-2010-3035 — Improper Input Validation in Cisco | cvebase