What is CVE-2009-2055?

CVE-2009-2055 is a vulnerability in N/a. Published 2009-08-19.

Is CVE-2009-2055 known to be exploited?

Yes. CVE-2009-2055 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2022-03-25), indicating it is being actively exploited. 3 public proof-of-concept repositories are indexed.

Vulnerability in N/a

CVE-2009-2055

Cisco IOS XR 3.4.0 through 3.8.1 allows remote attackers to cause a denial of service (session reset) via a BGP UPDATE message with an invalid attribute, as demonstrated in the wild on 17 August 2009.

EPSS: 0.008 (73.9th percentile) — read the EPSS interpretation.

Affected products

N/a — versions n/a

CISA KEV (Known Exploited Vulnerabilities)

This CVE is on the CISA KEV catalog, added on 2022-03-25. CISA KEV inclusion means CISA has confirmed in-the-wild exploitation; US federal agencies are required to remediate within a published due date.

BOD 22-01 due date: 2022-04-15.

Required action: Apply updates per vendor instructions.

Public proof-of-concept exploits

References

[nanog] 20090817 RE: Anyone else seeing "(invalid or corrupt AS path) 3 bytes E01100" ? (mailing-list, x_refsource_MLIST)
1022739 (vdb-entry, x_refsource_SECTRACK)
20090818 Cisco IOS XR Software Border Gateway Protocol Vulnerability (x_refsource_CISCO, vendor-advisory)

Frequently asked questions

What is CVE-2009-2055?: CVE-2009-2055 is a vulnerability in N/a. Published 2009-08-19.
Is CVE-2009-2055 known to be exploited?: Yes. CVE-2009-2055 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2022-03-25), indicating it is being actively exploited. 3 public proof-of-concept repositories are indexed.