CVE-2009-4921

Severity: high (CVSS 7.8 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.2% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2010-06-29 · updated 2026-06-16
Weakness: CWE-20

Description

Cisco Adaptive Security Appliances (ASA) 5580 series devices with software before 8.1(2) allow remote attackers to cause a denial of service (traceback) via malformed TCP packets, aka Bug ID CSCsm84110.

Affected products

Cisco Asa 5580: through 8.1\(1\)

References

http://www.cisco.com/en/US/docs/security/asa/asa81/release/notes/asarn812.html
http://www.cisco.com/en/US/docs/security/asa/asa81/release/notes/asarn812.html

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