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Unrated severityNVD Advisory· Published Oct 3, 2011· Updated Jun 16, 2026

CVE-2011-3273

CVE-2011-3273

Description

Memory leak in Cisco IOS 15.0 through 15.1, when IPS or Zone-Based Firewall (aka ZBFW) is configured, allows remote attackers to cause a denial of service (memory consumption or device crash) via vectors that trigger many session creation flows, aka Bug ID CSCti79848.

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LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

12
  • Cisco Systems, Inc./Cisco iOS12 versions
    cpe:2.3:o:cisco:ios:15.0:*:*:*:*:*:*:*+ 11 more
    • cpe:2.3:o:cisco:ios:15.0:*:*:*:*:*:*:*
    • cpe:2.3:o:cisco:ios:15.0m:*:*:*:*:*:*:*
    • cpe:2.3:o:cisco:ios:15.0sg:*:*:*:*:*:*:*
    • cpe:2.3:o:cisco:ios:15.0xa:*:*:*:*:*:*:*
    • cpe:2.3:o:cisco:ios:15.0xo:*:*:*:*:*:*:*
    • cpe:2.3:o:cisco:ios:15.1:*:*:*:*:*:*:*
    • cpe:2.3:o:cisco:ios:15.1gc:*:*:*:*:*:*:*
    • cpe:2.3:o:cisco:ios:15.1m:*:*:*:*:*:*:*
    • cpe:2.3:o:cisco:ios:15.1s:*:*:*:*:*:*:*
    • cpe:2.3:o:cisco:ios:15.1t:*:*:*:*:*:*:*
    • cpe:2.3:o:cisco:ios:15.1xb:*:*:*:*:*:*:*
    • (no CPE)range: 15.0 - 15.1

Patches

Vulnerability mechanics

References

2

News mentions

0

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