Cisco Unified Communications Manager (aka CUCM, formerly CallManager) 5.x before 5.1(3g), 6.x before 6.1(4), 7.0.x before 7.0(2a)su1, and 7.1.x before 7.1(2) allows remote attackers to cause a denial of service (service restart) via malformed SIP messages, aka Bug ID CSCsz95423
Published Sep 28, 2009
7.8
HIGHCVSS 2.0
EPSS 2.94%
Description
Cisco Unified Communications Manager (aka CUCM, formerly CallManager) 5.x before 5.1(3g), 6.x before 6.1(4), 7.0.x before 7.0(2a)su1, and 7.1.x before 7.1(2) allows remote attackers to cause a denial of service (service restart) via malformed SIP messages, aka Bug ID CSCsz95423.
Affected products
No data.
- 5.0\(1\)
- 5.0\(2\)
- 5.0\(2a\)
- 5.0\(3\)
- 5.0\(3a\)
- 5.0\(4\)
- 5.0\(4a\)
- 5.0\(4c\)
- 5.1
- 5.1\(1\)
- 5.1\(1a\)
- 5.1\(1c\)
- 5.1\(2\)
- 5.1\(2a\)
- 5.1\(2b\)
- 5.1\(3\)
- 5.1\(3a\)
- 5.1\(3b\)
- 5.1\(3c\)
- 6.0\(1\)
- 6.0\(1a\)
- 6.0\(1b\)
- 6.1
- 6.1\(1\)
- 6.1\(1a\)
- 6.1\(1b\)
- 6.1\(2\)
- 5.1\(1b\)
- 5.1\(1c\)
- 5.1\(2\)
- 5.1\(2a\)
- 5.1\(3\)
- 5.1\(3a\)
- 5.1\(3c\)
- 5.1\(3d\)
- 5.1\(3e\)
- 6.1\(1\)
- 6.1\(1a\)
- 6.1\(1b\)
- 6.1\(2\)
- 6.1\(2\)su1
- 6.1\(2\)su1a
- 6.1\(3\)
- 7.0\(1\)
- 7.0\(2\)
- 7.1
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
No CVSS v3.0 score for this CVE.
AV:N/AC:L/Au:N/C:N/I:N/A:C
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
Score over time
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (9 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 2.94% (0.02945) | 86.67th | v5 (v2026.06.15) |
| Jun 15, 2026 | 2.94% (0.02945) | 85.31th | v5 (v2026.06.15) |
| Mar 17, 2025 | 1.39% (0.01385) | 79.02th | v4 (v2025.03.14) |
| Dec 12, 2024 | 2.42% (0.02420) | 90.34th | v3 (v2023.03.01) |
| Mar 7, 2023 | 2.42% (0.02420) | 88.22th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.41% (0.01408) | 72.89th | v2 (v2022.01.01) |
| Mar 2, 2023 | 1.41% (0.01408) | 72.88th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.41% (0.01408) | 70.87th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.41% (0.01408) | 49.94th | v2 (v2022.01.01) |
No CWE recorded.
References (8)
- http://osvdb.org/58344 vdb-entryx_refsource_OSVDB
- http://secunia.com/advisories/36836 third-party-advisoryx_refsource_SECUNIAVendor Advisory
- http://tools.cisco.com/security/center/viewAlert.x?alertId=18883 x_refsource_CONFIRMPatch
- http://www.cisco.com/en/US/products/products_security_advisory09186a0080af8118.shtml vendor-advisoryx_refsource_CISCOVendor Advisory
- http://www.securityfocus.com/bid/36496 vdb-entryx_refsource_BID
- http://www.securitytracker.com/id?1022931 vdb-entryx_refsource_SECTRACK
- http://www.vupen.com/english/advisories/2009/2757 vdb-entryx_refsource_VUPENVendor Advisory
- https://exchange.xforce.ibmcloud.com/vulnerabilities/53447 vdb-entryx_refsource_XF
| Link | Providers | Tags |
|---|---|---|
| http://osvdb.org/58344 | vdb-entryx_refsource_OSVDB | |
| http://secunia.com/advisories/36836 | third-party-advisoryx_refsource_SECUNIAVendor Advisory | |
| http://tools.cisco.com/security/center/viewAlert.x?alertId=18883 | x_refsource_CONFIRMPatch | |
| http://www.cisco.com/en/US/products/products_security_advisory09186a0080af8118.shtml | vendor-advisoryx_refsource_CISCOVendor Advisory | |
| http://www.securityfocus.com/bid/36496 | vdb-entryx_refsource_BID | |
| http://www.securitytracker.com/id?1022931 | vdb-entryx_refsource_SECTRACK | |
| http://www.vupen.com/english/advisories/2009/2757 | vdb-entryx_refsource_VUPENVendor Advisory | |
| https://exchange.xforce.ibmcloud.com/vulnerabilities/53447 | vdb-entryx_refsource_XF |
Change history (0)
No recorded changes yet.