Is CVE-2013-1136 being actively exploited?

CVE-2013-1136 is not currently listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

What is the CVSS score for CVE-2013-1136?

CVE-2013-1136 has a CVSS 2.0 base score of 4.6 (MEDIUM).

CVE-2013-1136

MEDIUM · CVSS 4.6EPSS 0.2%EU EUVD

The crypto engine process in Cisco IOS on Aggregation Services Router (ASR) Route Processor 2 does not properly manage memory, which allows local users to cause a denial of service (route processor crash) by creating multiple tunnels and then examining encryption statistics, aka Bug ID CSCuc52193.

Key facts

CVSS score: 4.6 (v2.0)
Severity: MEDIUM
CVSS vector: AV:L/AC:L/Au:S/C:N/I:N/A:C
Weakness (CWE): CWE-399
EPSS score: 0.2% (6th percentile)
In CISA KEV: No
In EU EUVD: Yes (EUVD-2013-1176)
Published: May 13, 2013
NVD last modified: June 16, 2026
Status: Modified

EU Vulnerability Database (EUVD)

This vulnerability is also tracked by ENISA as EUVD-2013-1176 in the EU Vulnerability Database. Last updated in EUVD on August 6, 2024.

View on the EU Vulnerability Database

Affected products

cisco / aggregation services router route processor
cisco / ios

References

http://tools.cisco.com/security/center/content/CiscoSecurityNotice/CVE-2013-1136(Vendor Advisory)

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

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