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CVE-2015-0642

HIGH · CVSS 7.8EPSS 2.8%EU EUVD

Cisco IOS 12.2, 12.4, 15.0, 15.1, 15.2, 15.3, and 15.4 and IOS XE 2.5.x, 2.6.x, 3.1.xS through 3.12.xS before 3.12.3S, 3.2.xE through 3.7.xE before 3.7.1E, 3.3.xSG, 3.4.xSG, and 3.13.xS before 3.13.2S allow remote attackers to cause a denial of service (device reload) by sending malformed IKEv2 packets over (1) IPv4 or (2) IPv6, aka Bug ID CSCum36951.

Key facts

CVSS score
7.8 (v2.0)
Severity
HIGH
CVSS vector
AV:N/AC:L/Au:N/C:N/I:N/A:C
Weakness (CWE)
CWE-20
EPSS score
2.8% (86th percentile)
In CISA KEV
No
In EU EUVD
Yes (EUVD-2015-0655)
Published
March 26, 2015
NVD last modified
June 17, 2026
Status
Modified

EU Vulnerability Database (EUVD)

This vulnerability is also tracked by ENISA as EUVD-2015-0655 in the EU Vulnerability Database. Last updated in EUVD on August 6, 2024.

View on the EU Vulnerability Database

Affected products

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

and 34 more…

Certified products that may be affected

1 FIPS 140 or Common Criteria certified product, from automated matching by sec-certs.org.

References

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

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CVE-2015-0642: HIGH severity (CVSS 7.8)