Memory leak in Cisco Unified Communications Manager (aka CUCM, formerly CallManager) 6.x before 6.1(5)su3, 7.x before 7.1(5b)su3, 8.0 before 8.0(3a)su2, and 8.5 before 8.5(1) allows remote attackers to cause a denial of service (memory consumption and process failure) via a malformed SIP message, aka Bug ID CSCti42904
Published May 3, 2011
7.1
HIGHCVSS 2.0
EPSS 2.51%
Description
Memory leak in Cisco Unified Communications Manager (aka CUCM, formerly CallManager) 6.x before 6.1(5)su3, 7.x before 7.1(5b)su3, 8.0 before 8.0(3a)su2, and 8.5 before 8.5(1) allows remote attackers to cause a denial of service (memory consumption and process failure) via a malformed SIP message, aka Bug ID CSCti42904.
Affected products
No data.
Configuration 1
- 6.0
- 6.1\(1\)
- 6.1\(1a\)
- 6.1\(1b\)
- 6.1\(2\)
- 6.1\(2\)su1
- 6.1\(2\)su1a
- 6.1\(3\)
- 6.1\(3a\)
- 6.1\(3b\)
- 6.1\(3b\)su1
- 6.1\(4\)
- 6.1\(4\)su1
- 6.1\(4a\)
- 6.1\(4a\)su2
- 6.1\(5\)
- 6.1\(5\)su1
- 6.1\(5\)su2
Configuration 2
- 7.0\(1\)su1
- 7.0\(1\)su1a
- 7.0\(2\)
- 7.0\(2a\)
- 7.0\(2a\)su1
- 7.0\(2a\)su2
- 7.1\(2a\)
- 7.1\(2a\)su1
- 7.1\(2b\)
- 7.1\(2b\)su1
- 7.1\(3\)
- 7.1\(3a\)
- 7.1\(3a\)su1
- 7.1\(3a\)su1a
- 7.1\(3b\)
- 7.1\(3b\)su1
- 7.1\(3b\)su2
- 7.1\(5\)
- 7.1\(5\)su1
- 7.1\(5\)su1a
- 7.1\(5a\)
- 7.1\(5b\)
- 7.1\(5b\)su2
Configuration 3
- 8.0\(2c\)
- 8.0\(2c\)su1
- 8.0\(3\)
- 8.0\(3a\)
- 8.0\(3a\)su1
- 8.5
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:M/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 | 2.51% (0.02508) | 84.19th | v5 (v2026.06.15) |
| Jun 15, 2026 | 2.51% (0.02508) | 82.64th | v5 (v2026.06.15) |
| Mar 17, 2025 | 2.02% (0.02018) | 82.55th | v4 (v2025.03.14) |
| Dec 12, 2024 | 1.98% (0.01978) | 89.26th | v3 (v2023.03.01) |
| Mar 7, 2023 | 1.98% (0.01978) | 86.95th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.32% (0.01319) | 71.27th | v2 (v2022.01.01) |
| Feb 23, 2023 | 1.32% (0.01319) | 71.23th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.32% (0.01319) | 69.22th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.32% (0.01319) | 44.98th | v2 (v2022.01.01) |
References (7)
- http://archives.neohapsis.com/archives/fulldisclosure/2011-05/0051.html mailing-listx_refsource_FULLDISC
- http://secunia.com/advisories/44331 third-party-advisoryx_refsource_SECUNIA
- http://www.cisco.com/en/US/products/products_security_advisory09186a0080b79904.shtml vendor-advisoryx_refsource_CISCOVendor Advisory
- http://www.securityfocus.com/bid/47609 vdb-entryx_refsource_BID
- http://www.securitytracker.com/id?1025449 vdb-entryx_refsource_SECTRACK
- http://www.vupen.com/english/advisories/2011/1122 vdb-entryx_refsource_VUPEN
- https://exchange.xforce.ibmcloud.com/vulnerabilities/67122 vdb-entryx_refsource_XF
| Link | Providers | Tags |
|---|---|---|
| http://archives.neohapsis.com/archives/fulldisclosure/2011-05/0051.html | mailing-listx_refsource_FULLDISC | |
| http://secunia.com/advisories/44331 | third-party-advisoryx_refsource_SECUNIA | |
| http://www.cisco.com/en/US/products/products_security_advisory09186a0080b79904.shtml | vendor-advisoryx_refsource_CISCOVendor Advisory | |
| http://www.securityfocus.com/bid/47609 | vdb-entryx_refsource_BID | |
| http://www.securitytracker.com/id?1025449 | vdb-entryx_refsource_SECTRACK | |
| http://www.vupen.com/english/advisories/2011/1122 | vdb-entryx_refsource_VUPEN | |
| https://exchange.xforce.ibmcloud.com/vulnerabilities/67122 | vdb-entryx_refsource_XF |
Change history (0)
No recorded changes yet.