Threats / Cisco / CVE-2010-3035
CVE-2010-3035
· EUVD no mirror located
· GCVE no mirror located
Verified 2026-06-22
Cisco IOS XR vulnerability
Cisco IOS XR with BGP routing enabled is vulnerable to remote denial-of-service attacks via improper input validation.
Verdict
Today item — known-exploited.
A remote attacker can trigger a denial-of-service condition in Cisco IOS XR systems running BGP by sending specially crafted network traffic. The vulnerability stems from insufficient input validation and has been observed in active exploitation.
01
Is it exploitable?
— the evidence, ranked above the scoreReported exploitation
1 independent public report of in-the-wild exploitation are cataloged.Distinct reporting sources (vendor, incident response, government); open them for the underlying claims.
Exploited in the wild
Listed in the CISA Known Exploited Vulnerabilities catalog (added 2022-03-25).
Probability (EPSS)
EPSS 0.05562 — modeled likelihood of exploitation activity.EPSS is a daily-changing model output — open the source for today's value.
Severity / affected
Affected: Cisco, IOS XR. Confirm exact fixed builds in the vendor advisory.
Weakness (CWE)
Mapped to CWE-20 Improper Input Validation.CWE assignment from the public NVD record; the weakness class drives how the flaw is exploited.
02
Who’s exploiting it?
— attribution turns risk into urgencyAttribution not established
No confirmed (advisory-backed) threat-actor attribution is established for this record. Absence of a named actor is not absence of compromise — see Coverage & confidence.
03
Why it matters
— the attack path, told twice: adversary, then board1
Front door — unauthenticated access narrative 1
Attacker
I craft malformed BGP packets and send them to the target IOS XR device to trigger a crash or service hang.
Business
Network routing infrastructure becomes unavailable, disrupting all traffic dependent on that device until manual recovery.
04
What to do
— defensible action- Remediate per the vendor advisory — confirm the fixed build for your version and verify exposure.1
Say it to the boardA vulnerability with this evidence profile is a defensible budget line, not a backlog ticket — fund the change against the proof above.
05