Cisco Unified Communications Manager (CUCM, formerly CallManager) 5.1 before 5.1(2), and Unified CallManager 5.0, allow remote attackers to cause a denial of service (kernel panic) via a flood of SIP INVITE messages to UDP port 5060, which triggers resource exhaustion, aka CSCsi75822
Published Oct 18, 2007
7.8
HIGHCVSS 2.0
EPSS 1.98%
Description
Cisco Unified Communications Manager (CUCM, formerly CallManager) 5.1 before 5.1(2), and Unified CallManager 5.0, allow remote attackers to cause a denial of service (kernel panic) via a flood of SIP INVITE messages to UDP port 5060, which triggers resource exhaustion, aka CSCsi75822.
Affected products
No data.
- 5.0
- ≤ 5.1\(2\)
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 2, 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 (14 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 2, 2026 | 1.98% (0.01978) | 79.80th | v5 (v2026.06.15) |
| Jun 15, 2026 | 1.98% (0.01978) | 77.85th | v5 (v2026.06.15) |
| Mar 17, 2025 | 1.48% (0.01482) | 79.68th | v4 (v2025.03.14) |
| Dec 12, 2024 | 3.36% (0.03363) | 91.74th | v3 (v2023.03.01) |
| Sep 28, 2024 | 3.36% (0.03363) | 91.53th | v3 (v2023.03.01) |
| Jul 14, 2024 | 2.35% (0.02355) | 89.93th | v3 (v2023.03.01) |
| Jun 6, 2024 | 2.53% (0.02527) | 90.17th | v3 (v2023.03.01) |
| Mar 21, 2024 | 2.47% (0.02468) | 89.80th | v3 (v2023.03.01) |
| Oct 23, 2023 | 2.30% (0.02304) | 88.45th | v3 (v2023.03.01) |
| Mar 7, 2023 | 2.13% (0.02133) | 87.46th | 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://osvdb.org/37941 vdb-entryx_refsource_OSVDB
- http://secunia.com/advisories/27296 third-party-advisoryx_refsource_SECUNIA
- http://www.cisco.com/en/US/products/products_security_advisory09186a00808dda34.shtml vendor-advisoryx_refsource_CISCO
- http://www.securityfocus.com/bid/26105 vdb-entryx_refsource_BID
- http://www.securitytracker.com/id?1018828 vdb-entryx_refsource_SECTRACK
- http://www.vupen.com/english/advisories/2007/3532 vdb-entryx_refsource_VUPEN
- https://exchange.xforce.ibmcloud.com/vulnerabilities/37246 vdb-entryx_refsource_XF
| Link | Providers | Tags |
|---|---|---|
| http://osvdb.org/37941 | vdb-entryx_refsource_OSVDB | |
| http://secunia.com/advisories/27296 | third-party-advisoryx_refsource_SECUNIA | |
| http://www.cisco.com/en/US/products/products_security_advisory09186a00808dda34.shtml | vendor-advisoryx_refsource_CISCO | |
| http://www.securityfocus.com/bid/26105 | vdb-entryx_refsource_BID | |
| http://www.securitytracker.com/id?1018828 | vdb-entryx_refsource_SECTRACK | |
| http://www.vupen.com/english/advisories/2007/3532 | vdb-entryx_refsource_VUPEN | |
| https://exchange.xforce.ibmcloud.com/vulnerabilities/37246 | vdb-entryx_refsource_XF |
Change history (0)
No recorded changes yet.