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Unrated severityNVD Advisory· Published Sep 27, 2012· Updated Jun 16, 2026

CVE-2012-4620

CVE-2012-4620

Description

Cisco IOS 12.2 and 15.0 through 15.2 on Cisco 10000 series routers, when a tunnel interface exists, allows remote attackers to cause a denial of service (interface queue wedge) via tunneled (1) GRE/IP, (2) IPIP, or (3) IPv6 in IPv4 packets, aka Bug ID CSCts66808.

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Affected products

7
  • Cisco Systems, Inc./10008 Router
    cpe:2.3:h:cisco:10008_router:*:*:*:*:*:*:*:*
  • Cisco Systems, Inc./Cisco iOS6 versions
    cpe:2.3:o:cisco:ios:12.2:*:*:*:*:*:*:*+ 5 more
    • cpe:2.3:o:cisco:ios:12.2:*:*:*:*:*:*:*
    • cpe:2.3:o:cisco:ios:15.0:*:*:*:*:*:*:*
    • cpe:2.3:o:cisco:ios:15.0\(1\)se:*:*:*:*:*:*:*
    • cpe:2.3:o:cisco:ios:15.1:*:*:*:*:*:*:*
    • cpe:2.3:o:cisco:ios:15.2:*:*:*:*:*:*:*
    • (no CPE)range: 12.2, 15.0-15.2

Patches

Vulnerability mechanics

References

4

News mentions

0

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