CVE-2010-2836

Severity: high (CVSS 7.8 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.8% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2010-09-23 · updated 2026-06-16
Weakness: CWE-399

Description

Memory leak in the SSL VPN feature in Cisco IOS 12.4, 15.0, and 15.1, when HTTP port redirection is enabled, allows remote attackers to cause a denial of service (memory consumption) by improperly disconnecting SSL sessions, leading to connections that remain in the CLOSE-WAIT state, aka Bug ID CSCtg21685.

Affected products

Cisco IOS: 12.4, 12.4gc, 12.4mda, 12.4mr, 12.4mra, 12.4sw (+25)

References

http://www.cisco.com/en/US/products/products_security_advisory09186a0080b4a312.shtml
http://www.cisco.com/en/US/products/products_security_advisory09186a0080b4a312.shtml

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