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CVE-2011-4007

MEDIUM · CVSS 5.4EPSS 1.2%EU EUVD

Cisco IOS 15.0 and 15.1 and IOS XE 3.x do not properly handle the "set mpls experimental imposition" command, which allows remote attackers to cause a denial of service (device crash) via network traffic that triggers (1) fragmentation or (2) reassembly, aka Bug ID CSCtr56576.

Key facts

CVSS score
5.4 (v2.0)
Severity
MEDIUM
CVSS vector
AV:N/AC:H/Au:N/C:N/I:N/A:C
Weakness (CWE)
CWE-20
EPSS score
1.2% (68th percentile)
In CISA KEV
No
In EU EUVD
Yes (EUVD-2011-3960)
Published
May 2, 2012
NVD last modified
June 16, 2026
Status
Modified

EU Vulnerability Database (EUVD)

This vulnerability is also tracked by ENISA as EUVD-2011-3960 in the EU Vulnerability Database. Last updated in EUVD on August 6, 2024.

View on the EU Vulnerability Database

Affected products

  • cisco / ios
  • cisco / ios
  • cisco / ios xe
  • cisco / ios xe
  • cisco / ios xe
  • cisco / ios xe
  • cisco / ios xe
  • cisco / ios xe
  • cisco / ios xe
  • cisco / ios xe
  • cisco / ios xe
  • cisco / ios xe
  • cisco / ios xe
  • cisco / ios xe
  • cisco / ios xe
  • cisco / ios xe
  • cisco / ios xe
  • cisco / ios xe
  • cisco / ios xe
  • cisco / ios xe
  • cisco / ios xe

References

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

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