Unspecified vulnerability in Cisco IOS 12.2XNA, 12.2XNB, 12.2XNC, 12.2XND, 12.4T, 12.4XZ, and 12.4YA, when Zone-Based Policy Firewall SIP Inspection is enabled, allows remote attackers to cause a denial of service (device reload) via a crafted SIP transit packet, aka Bug ID CSCsr18691
Published Sep 28, 2009
7.8
HIGHCVSS 2.0
EPSS 2.53%
Description
Unspecified vulnerability in Cisco IOS 12.2XNA, 12.2XNB, 12.2XNC, 12.2XND, 12.4T, 12.4XZ, and 12.4YA, when Zone-Based Policy Firewall SIP Inspection is enabled, allows remote attackers to cause a denial of service (device reload) via a crafted SIP transit packet, aka Bug ID CSCsr18691.
Affected products
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 (10 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 2, 2026 | 2.53% (0.02525) | 84.33th | v5 (v2026.06.15) |
| Jun 15, 2026 | 2.53% (0.02525) | 82.76th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.80% (0.00798) | 72.35th | v4 (v2025.03.14) |
| Dec 12, 2024 | 1.35% (0.01355) | 86.76th | v3 (v2023.03.01) |
| May 6, 2024 | 1.35% (0.01355) | 86.09th | v3 (v2023.03.01) |
| Mar 7, 2023 | 1.35% (0.01355) | 84.09th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.21% (0.01213) | 66.61th | v2 (v2022.01.01) |
| Feb 17, 2023 | 1.21% (0.01213) | 66.22th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.21% (0.01213) | 64.21th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.21% (0.01213) | 40.54th | v2 (v2022.01.01) |
No CWE recorded.
References (5)
- http://tools.cisco.com/security/center/viewAlert.x?alertId=18886 x_refsource_CONFIRMVendor Advisory
- http://www.cisco.com/en/US/products/products_security_advisory09186a0080af8130.shtml vendor-advisoryx_refsource_CISCOVendor Advisory
- http://www.securitytracker.com/id?1022930 vdb-entryx_refsource_SECTRACK
- http://www.vupen.com/english/advisories/2009/2759 vdb-entryx_refsource_VUPEN
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A7254 vdb-entrysignaturex_refsource_OVAL
| Link | Providers | Tags |
|---|---|---|
| http://tools.cisco.com/security/center/viewAlert.x?alertId=18886 | x_refsource_CONFIRMVendor Advisory | |
| http://www.cisco.com/en/US/products/products_security_advisory09186a0080af8130.shtml | vendor-advisoryx_refsource_CISCOVendor Advisory | |
| http://www.securitytracker.com/id?1022930 | vdb-entryx_refsource_SECTRACK | |
| http://www.vupen.com/english/advisories/2009/2759 | vdb-entryx_refsource_VUPEN | |
| https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A7254 | vdb-entrysignaturex_refsource_OVAL |
Change history (0)
No recorded changes yet.