Is CVE-2012-5017 being actively exploited?

CVE-2012-5017 is not currently listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

What is the CVSS score for CVE-2012-5017?

CVE-2012-5017 has a CVSS 2.0 base score of 6.8 (MEDIUM).

CVE-2012-5017

MEDIUM · CVSS 6.8EPSS 1.5%EU EUVD

Cisco IOS before 15.1(1)SY1 allows remote authenticated users to cause a denial of service (device reload) by establishing a VPN session and then sending malformed IKEv2 packets, aka Bug ID CSCub39268.

Key facts

CVSS score: 6.8 (v2.0)
Severity: MEDIUM
CVSS vector: AV:N/AC:L/Au:S/C:N/I:N/A:C
Weakness (CWE): CWE-20
EPSS score: 1.5% (75th percentile)
In CISA KEV: No
In EU EUVD: Yes (EUVD-2012-4941)
Published: April 23, 2014
NVD last modified: June 16, 2026
Status: Modified

EU Vulnerability Database (EUVD)

This vulnerability is also tracked by ENISA as EUVD-2012-4941 in the EU Vulnerability Database. Last updated in EUVD on August 6, 2024.

View on the EU Vulnerability Database

Affected products

cisco / asr 1001
cisco / asr 1002
cisco / asr 1002 fixed router
cisco / asr 1002-x
cisco / asr 1004
cisco / asr 1006
cisco / asr 1023 router
cisco / ios
cisco / ios

References

http://www.cisco.com/c/en/us/td/docs/switches/lan/catalyst6500/ios/15-1SY/release_notes.pdf

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

Query CVEs from your AI assistant

The CVE/NVD Explorer brain answers CVE questions directly inside Claude, ChatGPT, or any MCP assistant — always up to date, no setup. Add it once and stop pasting advisories into chat.

Add the CVE brain