Cisco IOS 12.2, 12.4, 15.0, 15.1, 15.2, 15.3, and 15.4 and IOS XE 2.5.x, 2.6.x, 3.1.xS through 3.12.xS before 3.12.3S, 3.2.xE through 3.7.xE before 3.7.1E, 3.3.xSG, 3.4.xSG, and 3.13.xS before 3.13.2S allow remote attackers to cause a denial of service (memory consumption and device reload) by sending malformed IKEv2 packets over (1) IPv4 or (2) IPv6, aka Bug ID CSCuo75572
Published Mar 26, 2015
7.8
HIGHCVSS 2.0
EPSS 2.78%
Description
Cisco IOS 12.2, 12.4, 15.0, 15.1, 15.2, 15.3, and 15.4 and IOS XE 2.5.x, 2.6.x, 3.1.xS through 3.12.xS before 3.12.3S, 3.2.xE through 3.7.xE before 3.7.1E, 3.3.xSG, 3.4.xSG, and 3.13.xS before 3.13.2S allow remote attackers to cause a denial of service (memory consumption and device reload) by sending malformed IKEv2 packets over (1) IPv4 or (2) IPv6, aka Bug ID CSCuo75572.
Affected products
No data.
Configuration 1
- 3.2s.0
- 3.2s.1
- 3.2s.2
- 3.3sg.0
- 3.3sg.1
- 3.3sg.2
- 3.3xo.0
- 3.3xo.1
- 3.3xo.2
- 3.4s.0
- 3.4s.1
- 3.4s.2
- 3.4s.3
- 3.4s.4
- 3.4s.5
- 3.4s.6
- 3.4sg.0
- 3.4sg.1
- 3.4sg.2
- 3.4sg.3
- 3.4sg.4
- 3.4sg.5
- 3.5e.0
- 3.5e.1
- 3.5e.2
- 3.5e.3
- 3.5s.0
- 3.5s.1
- 3.5s.2
- 3.5s_base
- 3.6e.0
- 3.6e.1
- 3.6s.0
- 3.6s.1
- 3.6s.2
- 3.6s_base
- 3.7s.1
- 3.7s.2
- 3.7s.3
- 3.7s.4
- 3.7s.5
- 3.7s.6
- 3.7s_base
- 3.8s.0
- 3.8s.1
- 3.8s.2
- 3.8s_base
- 3.9s.0
- 3.9s.1
- 3.9s.2
- 3.10s.0
- 3.10s.0a
- 3.10s.1
- 3.10s.2
- 3.11s.0
- 3.11s.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 (10 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 2.78% (0.02778) | 85.87th | v5 (v2026.06.15) |
| Jun 15, 2026 | 2.80% (0.02798) | 84.54th | v5 (v2026.06.15) |
| Mar 17, 2025 | 1.29% (0.01286) | 78.24th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.68% (0.00676) | 80.55th | v3 (v2023.03.01) |
| Feb 8, 2024 | 0.68% (0.00676) | 79.24th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.68% (0.00676) | 76.75th | 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) |
References (4)
- http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20150325-ikev2 vendor-advisoryx_refsource_CISCOVendor Advisory
- http://tools.cisco.com/security/center/viewAlert.x?alertId=37815 x_refsource_CONFIRMVendor Advisory
- http://www.securityfocus.com/bid/73333 vdb-entryx_refsource_BID
- http://www.securitytracker.com/id/1031978 vdb-entryx_refsource_SECTRACK
| Link | Providers | Tags |
|---|---|---|
| http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20150325-ikev2 | vendor-advisoryx_refsource_CISCOVendor Advisory | |
| http://tools.cisco.com/security/center/viewAlert.x?alertId=37815 | x_refsource_CONFIRMVendor Advisory | |
| http://www.securityfocus.com/bid/73333 | vdb-entryx_refsource_BID | |
| http://www.securitytracker.com/id/1031978 | vdb-entryx_refsource_SECTRACK |
Change history (0)
No recorded changes yet.