CVE-2009-2871

Severity: high (CVSS 7.8 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 2.5% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2009-09-28 · updated 2026-06-16

Description

Unspecified vulnerability in Cisco IOS 12.2 and 12.4, when SSLVPN sessions, SSH sessions, or IKE encrypted nonces are enabled, allows remote attackers to cause a denial of service (device reload) via a crafted encrypted packet, aka Bug ID CSCsq24002.

Affected products

Cisco IOS: 12.2xna, 12.2xnb, 12.2xnc, 12.2xnd, 12.4md, 12.4mr (+11)

References

http://tools.cisco.com/security/center/viewAlert.x?alertId=18892
http://www.cisco.com/en/US/products/products_security_advisory09186a0080af811c.shtml
http://www.securitytracker.com/id?1022930
http://www.vupen.com/english/advisories/2009/2759
http://tools.cisco.com/security/center/viewAlert.x?alertId=18892
http://www.cisco.com/en/US/products/products_security_advisory09186a0080af811c.shtml
http://www.securitytracker.com/id?1022930
http://www.vupen.com/english/advisories/2009/2759

Get alerted when CVE-2009-2871 or the next vulnerability affects your stack