CVE-2013-6979
MEDIUM · CVSS 5.4EPSS 3.6%EU EUVD
The VTY authentication implementation in Cisco IOS XE 03.02.xxSE and 03.03.xxSE incorrectly relies on the Linux-IOS internal-network configuration, which allows remote attackers to bypass authentication by leveraging access to a 192.168.x.2 source IP address, aka Bug ID CSCuj90227.
Key facts
- CVSS score
- 5.4 (v2.0)
- Severity
- MEDIUM
- CVSS vector
AV:N/AC:H/Au:N/C:C/I:N/A:N- Weakness (CWE)
- CWE-287
- EPSS score
- 3.6% (90th percentile)
- In CISA KEV
- No
- In EU EUVD
- Yes (EUVD-2013-6780)
- Published
- December 23, 2013
- NVD last modified
- June 17, 2026
- Status
- Modified
EU Vulnerability Database (EUVD)
This vulnerability is also tracked by ENISA as EUVD-2013-6780 in the EU Vulnerability Database. Last updated in EUVD on August 6, 2024.
View on the EU Vulnerability DatabaseAffected products
- cisco / ios xe
References
- http://osvdb.org/101351
- http://tools.cisco.com/security/center/content/CiscoSecurityNotice/CVE-2013-6979(Vendor Advisory)
- http://www.securityfocus.com/bid/64502(Third Party Advisory, VDB Entry)
- http://www.securitytracker.com/id/1029537(Third Party Advisory, VDB Entry)
- https://exchange.xforce.ibmcloud.com/vulnerabilities/89901
Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS
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