Memory leak in the TCP input module in Cisco IOS 12.2, 12.4, 15.0, 15.2, 15.3, and 15.4 and IOS XE 3.3.xXO, 3.5.xE, 3.6.xE, 3.8.xS through 3.10.xS before 3.10.5S, and 3.11.xS and 3.12.xS before 3.12.3S allows remote attackers to cause a denial of service (memory consumption or device reload) by sending crafted TCP packets over (1) IPv4 or (2) IPv6, aka Bug ID CSCum94811
Published Mar 26, 2015
7.8
HIGHCVSS 2.0
EPSS 3.78%
Description
Memory leak in the TCP input module in Cisco IOS 12.2, 12.4, 15.0, 15.2, 15.3, and 15.4 and IOS XE 3.3.xXO, 3.5.xE, 3.6.xE, 3.8.xS through 3.10.xS before 3.10.5S, and 3.11.xS and 3.12.xS before 3.12.3S allows remote attackers to cause a denial of service (memory consumption or device reload) by sending crafted TCP packets over (1) IPv4 or (2) IPv6, aka Bug ID CSCum94811.
Affected products
No data.
Configuration 1
- 3.3xo.0
- 3.3xo.1
- 3.3xo.2
- 3.5e.0
- 3.5e.1
- 3.5e.2
- 3.5e.3
- 3.6e.0
- 3.6e.1
- 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
- 3.10s.3
- 3.10s.4
- 3.11s.0
- 3.11s.1
- 3.11s.2
- 3.11s.3
- 3.11s.4
- 3.12s.0
- 3.12s.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 | 3.78% (0.03779) | 89.61th | v5 (v2026.06.15) |
| Jun 15, 2026 | 3.81% (0.03807) | 88.61th | v5 (v2026.06.15) |
| Mar 17, 2025 | 1.07% (0.01074) | 76.23th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.56% (0.00563) | 78.47th | v3 (v2023.03.01) |
| Feb 8, 2024 | 0.56% (0.00563) | 77.04th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.56% (0.00563) | 74.33th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.14% (0.01136) | 59.45th | v2 (v2022.01.01) |
| Oct 18, 2022 | 1.14% (0.01136) | 58.28th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.14% (0.01136) | 56.27th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.14% (0.01136) | 34.23th | v2 (v2022.01.01) |
References (3)
- http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20150325-tcpleak vendor-advisoryx_refsource_CISCOVendor Advisory
- http://www.securityfocus.com/bid/73340 vdb-entryx_refsource_BID
- http://www.securitytracker.com/id/1031980 vdb-entryx_refsource_SECTRACK
| Link | Providers | Tags |
|---|---|---|
| http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20150325-tcpleak | vendor-advisoryx_refsource_CISCOVendor Advisory | |
| http://www.securityfocus.com/bid/73340 | vdb-entryx_refsource_BID | |
| http://www.securitytracker.com/id/1031980 | vdb-entryx_refsource_SECTRACK |
Change history (0)
No recorded changes yet.