Cisco Unified Communications Manager 4.1 before 4.1(3)SR7, 4.2 before 4.2(3)SR4, 4.3 before 4.3(2), 5.x before 5.1(3), and 6.x before 6.1(1) does not properly validate SIP URLs, which allows remote attackers to cause a denial of service (service interruption) via a SIP INVITE message, aka Bug ID CSCsl22355
Published May 16, 2008
7.8
HIGHCVSS 2.0
EPSS 2.45%
Description
Cisco Unified Communications Manager 4.1 before 4.1(3)SR7, 4.2 before 4.2(3)SR4, 4.3 before 4.3(2), 5.x before 5.1(3), and 6.x before 6.1(1) does not properly validate SIP URLs, which allows remote attackers to cause a denial of service (service interruption) via a SIP INVITE message, aka Bug ID CSCsl22355.
Affected products
No data.
- ≥ 4.1 · < 4.1\(3\)sr7
- ≥ 4.2 · < 4.2\(3\)sr4
- ≥ 4.3 · < 4.3\(2\)
- ≥ 5.0 · < 5.1\(3\)
- ≥ 6.0 · < 6.1\(1\)
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 (12 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 2.45% (0.02454) | 83.83th | v5 (v2026.06.15) |
| Jun 15, 2026 | 2.45% (0.02454) | 82.24th | v5 (v2026.06.15) |
| Mar 17, 2025 | 2.17% (0.02174) | 83.18th | v4 (v2025.03.14) |
| Dec 17, 2024 | 3.59% (0.03592) | 91.50th | v3 (v2023.03.01) |
| Dec 12, 2024 | 1.29% (0.01285) | 86.36th | v3 (v2023.03.01) |
| May 22, 2024 | 1.20% (0.01199) | 85.15th | v3 (v2023.03.01) |
| Sep 13, 2023 | 1.11% (0.01108) | 82.74th | v3 (v2023.03.01) |
| Mar 7, 2023 | 1.03% (0.01026) | 81.52th | 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 (6)
- http://secunia.com/advisories/30238 third-party-advisoryx_refsource_SECUNIAThird Party Advisory
- http://securitytracker.com/id?1020022 vdb-entryx_refsource_SECTRACKThird Party AdvisoryVDB Entry
- http://www.cisco.com/en/US/products/products_security_advisory09186a0080995688.shtml vendor-advisoryx_refsource_CISCOPatchVendor Advisory
- http://www.securityfocus.com/bid/29221 vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry
- http://www.vupen.com/english/advisories/2008/1533 vdb-entryx_refsource_VUPENPermissions Required
- https://exchange.xforce.ibmcloud.com/vulnerabilities/42419 vdb-entryx_refsource_XFThird Party AdvisoryVDB Entry
| Link | Providers | Tags |
|---|---|---|
| http://secunia.com/advisories/30238 | third-party-advisoryx_refsource_SECUNIAThird Party Advisory | |
| http://securitytracker.com/id?1020022 | vdb-entryx_refsource_SECTRACKThird Party AdvisoryVDB Entry | |
| http://www.cisco.com/en/US/products/products_security_advisory09186a0080995688.shtml | vendor-advisoryx_refsource_CISCOPatchVendor Advisory | |
| http://www.securityfocus.com/bid/29221 | vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry | |
| http://www.vupen.com/english/advisories/2008/1533 | vdb-entryx_refsource_VUPENPermissions Required | |
| https://exchange.xforce.ibmcloud.com/vulnerabilities/42419 | vdb-entryx_refsource_XFThird Party AdvisoryVDB Entry |
Change history (0)
No recorded changes yet.