CVE-2009-2050
Cisco Unified Communications Manager (aka CUCM, formerly CallManager) before 6.1(1) allows remote attackers to cause a denial of service (voice-services outage) via a malformed header in a SIP message, aka Bug ID CSCsi46466.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (3.44%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
Cisco Unified Communications Manager (aka CUCM, formerly CallManager) before 6.1(1) allows remote attackers to cause a denial of service (voice-services outage) via a malformed header in a SIP message, aka Bug ID CSCsi46466.
- CVSS 2.0
- 7.8 HIGHAV:N/AC:L/Au:N/C:N/I:N/A:C
- EPSS
- 3.44% probability · 89th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Affected
- cisco/unified communications manager
- Source
- psirt@cisco.com
EPSS 3.4% since 26 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- http://osvdb.org/57452Broken Link
- http://secunia.com/advisories/36495Third Party Advisory
- http://secunia.com/advisories/36499Third Party Advisory
- http://www.cisco.com/en/US/products/products_security_advisory09186a0080af2d11.shtmlPatch, Vendor Advisory
- http://www.securityfocus.com/bid/36152Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id?1022775Third Party Advisory, VDB Entry
- http://osvdb.org/57452Broken Link
- http://secunia.com/advisories/36495Third Party Advisory
- http://secunia.com/advisories/36499Third Party Advisory
- http://www.cisco.com/en/US/products/products_security_advisory09186a0080af2d11.shtmlPatch, Vendor Advisory
- http://www.securityfocus.com/bid/36152Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id?1022775Third Party Advisory, VDB Entry
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.