Is CVE-2013-6703 being actively exploited?

CVE-2013-6703 is not currently listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

What is the CVSS score for CVE-2013-6703?

CVE-2013-6703 has a CVSS 2.0 base score of 7.1 (HIGH).

CVE-2013-6703

HIGH · CVSS 7.1EPSS 1.3%EU EUVD

The TLS/SSLv3 module on Cisco ONS 15454 controller cards allows remote attackers to cause a denial of service (card reset) via crafted (1) TLS or (2) SSLv3 packets, aka Bug ID CSCuh34787.

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: 1.3% (72th percentile)
In CISA KEV: No
In EU EUVD: Yes (EUVD-2013-6505)
Published: December 3, 2013
NVD last modified: June 17, 2026
Status: Modified

EU Vulnerability Database (EUVD)

This vulnerability is also tracked by ENISA as EUVD-2013-6505 in the EU Vulnerability Database. Last updated in EUVD on August 6, 2024.

View on the EU Vulnerability Database

Affected products

cisco / ons 15454

References

http://tools.cisco.com/security/center/content/CiscoSecurityNotice/CVE-2013-6703(Vendor Advisory)
http://www.securitytracker.com/id/1029422(Third Party Advisory, VDB Entry)

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

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