Is CVE-2012-4617 being actively exploited?

CVE-2012-4617 is not currently listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

What is the CVSS score for CVE-2012-4617?

CVE-2012-4617 has a CVSS 2.0 base score of 7.1 (HIGH).

CVE-2012-4617

HIGH · CVSS 7.1EPSS 2.3%EU EUVD

The BGP implementation in Cisco IOS 15.2, IOS XE 3.5.xS before 3.5.2S, and IOS XR 4.1.0 through 4.2.2 allows remote attackers to cause a denial of service (multiple connection resets) by leveraging a peer relationship and sending a malformed attribute, aka Bug IDs CSCtt35379, CSCty58300, CSCtz63248, and CSCtz62914.

Key facts

CVSS score: 7.1 (v2.0)
Severity: HIGH
CVSS vector: AV:N/AC:M/Au:N/C:N/I:N/A:C
Weakness (CWE): CWE-20
EPSS score: 2.3% (84th percentile)
In CISA KEV: No
In EU EUVD: Yes (EUVD-2012-4542)
Published: September 27, 2012
NVD last modified: June 16, 2026
Status: Modified

EU Vulnerability Database (EUVD)

This vulnerability is also tracked by ENISA as EUVD-2012-4542 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 xe
cisco / ios xe
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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