cbcvebase.
CVE-2009-2051
published 2009-08-27

CVE-2009-2051: Cisco IOS 12.2 through 12.4 and 15.0 through 15.1, Cisco IOS XE 2.5.x and 2.6.x before 2.6.1, and Cisco Unified Communications Manager (aka CUCM, formerly…

PriorityP336high7.8CVSS 2.0
AVNACLAuNCNINAC
EPSS
3.44%
87.6th percentile
Cisco IOS 12.2 through 12.4 and 15.0 through 15.1, Cisco IOS XE 2.5.x and 2.6.x before 2.6.1, and Cisco Unified Communications Manager (aka CUCM, formerly CallManager) 4.x, 5.x before 5.1(3g), 6.x before 6.1(4), and 7.x before 7.1(2) allow remote attackers to cause a denial of service (device reload or voice-services outage) via a malformed SIP INVITE message that triggers an improper call to the sipSafeStrlen function, aka Bug IDs CSCsz40392 and CSCsz43987.

Affected

7 ranges
VendorProductVersion rangeFixed in
ciscoios12.2 – 12.4
ciscoios15.0 – 15.1
ciscoios_xe2.5.0 – 2.6.1
ciscounified_communications_manager
ciscounified_communications_manager>= 5.0 < 5.1\(3g\)5.1\(3g\)
ciscounified_communications_manager>= 6.1\(1\) < 6.1\(4\)6.1\(4\)
ciscounified_communications_manager>= 7.1 < 7.1\(2\)7.1\(2\)

CVSS provenance

nvdv2.07.8HIGHAV:N/AC:L/Au:N/C:N/I:N/A:C
vendor_cisco7.8HIGH
Stop checking back — get the weekly exploitation signal.

Every Monday: what got weaponized or added to CISA KEV in the last seven days — each CVE cross-linked to its PoC, Nuclei template, and detection rule. Free, one email a week, unsubscribe in one click.