CVE-2009-2872 json
Cisco IOS 12.0 through 12.4, when IP-based tunnels and the Cisco Express Forwarding feature are enabled, allows remote attackers to cause a…
published 2009-09-28 17 y ago modified 2026-06-16 4 mo ago also EUVD-2009-2862
- cvss
- 6.8
- version 2.0, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 2.3%
- EPSS 2.3% chance of exploitation in 30 days, percentile 83%
- public exploits
- 0
- none known
Summary
Cisco IOS 12.0 through 12.4, when IP-based tunnels and the Cisco Express Forwarding feature are enabled, allows remote attackers to cause a denial of service (device reload) via a malformed packet that is not properly handled during switching from one tunnel to a second tunnel, aka Bug IDs CSCsh97579 and CSCsq31776.
Exploit prediction
2.31% chance of exploitation in the next 30 days, higher than 83% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 2.0 | 6.8 | AV:N/AC:L/Au:S/C:N/I:N/A:C |
Classification
- Technology feeds
References
-
cisco.com
/en/US/products/products_security_advisory09186a0080af8115.shtml
vendor-advisory
-
tools.cisco.com
/security/center/viewAlert.x?alertId=18893
vendor-advisory
-
cisco.com
/en/US/products/products_applied_mitigation_bulletin09186a0080af8113.html
vendor-advisory
-
cisco.com
/web/about/security/intelligence/Cisco_ERP_sep09.html
vendor-advisory
-
securitytracker.com
/id?1022930
vdb-entry
-
vupen.com
/english/advisories/2009/2759
vdb-entry
-
osvdb.org
/58333
vdb-entry
Sources
- CVE List CVE-2009-2872
- NVD CVE-2009-2872
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.