Predictive Vulnerability Intelligence.

Product

  • Product
  • Pricing
  • Documentation

Company

  • About
  • Partnerships
  • Blog
  • Support

Legal

  • Terms
  • Privacy
  • Data Licensing

© 2026 FAUCET Technologies LLC. All rights reserved.

CVE-2013-6979

21
FAUCET Score

CVE-2013-6979 describes an authentication bypass vulnerability in Cisco IOS XE versions 03.02.xxSE and 03.03.xxSE. This flaw allows remote attackers to bypass VTY authentication by spoofing a 192.168.x.2 source IP address, due to an incorrect reliance on the Linux-IOS internal-network configuration. The vulnerability has a CVSS score of 5.4 (medium severity), indicating a network-based attack with high complexity but potential for complete confidentiality compromise. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
Range not provided by sourceCPE matchmatch criteria
cpe:2.3:o:cisco:ios_xe:-:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

5.4MEDIUM

AV:N/AC:H/Au:N/C:C/I:N/A:N

Confidentiality Impact
COMPLETE
Integrity Impact
NONE
Availability Impact
NONE
Access Vector
NETWORK
Access Complexity
HIGH
Authentication
NONE
Exploitability Score
4.9
Impact Score
6.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
3.60%
Probability of exploitation in next 30 days
EPSS Percentile
88.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0360 is in the 84th percentile among its peer group of 19,958 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Patches (1)

ciscovendor investigatingvia nvd_reference
View patch

References

osvdb.org / 101351
exchange.xforce.ibmcloud.com / vulnerabilities/89901
tools.cisco.com / security/center/content/CiscoSecurityNotice/CVE-2013-6979
Vendor Advisory
securityfocus.com / bid/64502
Third Party AdvisoryVDB Entry
securitytracker.com / id/1029537
Third Party AdvisoryVDB Entry