MEDIUMCVSS v3.1 5.9Actively exploited · CISA KEV since 2022-03-25Vulnerability

CVE-2009-2055

Cisco IOS XR,when BGP is the configured routing feature, allows remote attackers to cause a denial-of-service (DoS).

Properties

Vulnerability name
Cisco IOS XR Border Gateway Protocol (BGP) Denial-of-Service Vulnerability
First seen
2026-01-12T20:39:47+00:00
Cvss score
5.9
Epss score
0.03314
Last seen
2026-10-19T12:00:27+00:00
Due date
2022-04-15
Euvd assigner
cisco
Retrieved at
2026-10-21T01:24:46+00:00
Exploited euvd since
2022-03-25T00:00:00+00:00
Src batch id
epss_history-20261020T103617Z-728ddd
Source url
https://epss.empiricalsecurity.com/epss_scores-2026-10-19.csv.gz
Date added
2022-03-25
Score
5.9
Euvd base score version
3.1
Fetched at
2026-10-20T10:36:20+00:00
Cvss vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
In Signal since
initial import (Sep 2026)
Euvd base score
5.9
Vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
Vendor project
Cisco

Related Entities (22)

AFFECTS_PRODUCT (19)

→[Product]cpe:2.3:o:cisco:ios_xr:3.5.4:*:*:*:*:*:*:*
→[Product]cpe:2.3:o:cisco:ios_xr:3.8.1:*:*:*:*:*:*:*
→[Product]cpe:2.3:o:cisco:ios_xr:3.4.2:*:*:*:*:*:*:*
→[Product]cpe:2.3:o:cisco:ios_xr:3.8.0:*:*:*:*:*:*:*
→[Product]cpe:2.3:o:cisco:ios_xr:3.6.3:*:*:*:*:*:*:*
→[Product]cpe:2.3:o:cisco:ios_xr:3.4.1:*:*:*:*:*:*:*
→[Product]cpe:2.3:o:cisco:ios_xr:3.5.2:*:*:*:*:*:*:*
→[Product]cpe:2.3:o:cisco:ios_xr:3.7.1:*:*:*:*:*:*:*
→[Product]cpe:2.3:o:cisco:ios_xr:3.6.1:*:*:*:*:*:*:*
→[Product]cpe:2.3:o:cisco:ios_xr:3.7.3:*:*:*:*:*:*:*
→[Product]cpe:2.3:o:cisco:ios_xr:3.4.3:*:*:*:*:*:*:*
→[Product]cpe:2.3:o:cisco:ios_xr:3.7.0:*:*:*:*:*:*:*
→[Product]cpe:2.3:o:cisco:ios_xr:3.5:*:*:*:*:*:*:*
→[Product]cpe:2.3:o:cisco:ios_xr:3.7.2:*:*:*:*:*:*:*
→[Product]cpe:2.3:o:cisco:ios_xr:3.5.3:*:*:*:*:*:*:*
→[Product]cpe:2.3:o:cisco:ios_xr:3.6.0:*:*:*:*:*:*:*
→[Product]cpe:2.3:o:cisco:ios_xr:3.4.0:*:*:*:*:*:*:*
→[Product]cpe:2.3:o:cisco:ios_xr:3.6.2:*:*:*:*:*:*:*
→[Product]cpe:2.3:o:cisco:ios_xr:3.4:*:*:*:*:*:*:*

DESCRIBES (1)

←[KEVEntry]Cisco IOS XR Border Gateway Protocol (BGP) Denial-of-Service Vulnerability

HAS_WEAKNESS (1)

→[Weakness]Improper Input Validation

INVOLVES (1)

←[Signal]kev_added · 2022-03-25

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CVE-2009-2055 (CVSS v3.1 5.9) — Ninja Signal Threat Intelligence | Ninja Signal