kbrain

CVE-2009-2056

LOW · CVSS 3.3EPSS 1.3%EU EUVD

Cisco IOS XR 3.8.1 and earlier allows remote authenticated users to cause a denial of service (process crash) via vectors involving a BGP UPDATE message with many AS numbers prepended to the AS path.

Key facts

CVSS score
3.3 (v2.0)
Severity
LOW
CVSS vector
AV:N/AC:L/Au:M/C:N/I:N/A:P
Weakness (CWE)
CWE-264
EPSS score
1.3% (71th percentile)
In CISA KEV
No
In EU EUVD
Yes (EUVD-2009-2052)
Published
August 21, 2009
NVD last modified
June 16, 2026
Status
Modified

EU Vulnerability Database (EUVD)

This vulnerability is also tracked by ENISA as EUVD-2009-2052 in the EU Vulnerability Database. Last updated in EUVD on September 17, 2024.

View on the EU Vulnerability Database

Affected products

  • cisco / ios xr
  • cisco / ios xr
  • cisco / ios xr
  • cisco / ios xr
  • cisco / ios xr
  • cisco / ios xr
  • cisco / ios xr
  • cisco / ios xr
  • cisco / ios xr
  • cisco / ios xr
  • cisco / ios xr
  • cisco / ios xr
  • cisco / ios xr
  • cisco / ios xr
  • cisco / ios xr
  • cisco / ios xr
  • cisco / ios xr
  • cisco / ios xr
  • cisco / ios xr
  • cisco / ios xr
  • cisco / ios xr
  • cisco / ios xr
  • cisco / ios xr
  • cisco / ios xr
  • cisco / ios xr
  • cisco / ios xr
  • cisco / ios xr
  • cisco / ios xr
  • cisco / ios xr
  • cisco / ios xr
  • cisco / ios xr
  • cisco / ios xr
  • cisco / ios xr

References

Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS

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