Cisco IOS XR through 5.3.2 mishandles Local Packet Transport Services (LPTS) flow-base entries, which allows remote attackers to cause a denial of service (session drop) by making many connection attempts to open TCP ports, aka Bug ID CSCux95576
Published May 25, 2016
7.5
HIGHCVSS 3.0
EPSS 1.76%
Description
Cisco IOS XR through 5.3.2 mishandles Local Packet Transport Services (LPTS) flow-base entries, which allows remote attackers to cause a denial of service (session drop) by making many connection attempts to open TCP ports, aka Bug ID CSCux95576.
Affected products
No data.
- 2.0.0
- 3.0.0
- 3.0.1
- 3.2.0
- 3.2.1
- 3.2.2
- 3.2.3
- 3.2.4
- 3.2.6
- 3.2.50
- 3.3.0
- 3.3.1
- 3.3.2
- 3.3.3
- 3.3.4
- 3.4.0
- 3.4.1
- 3.4.2
- 3.4.3
- 3.5.0
- 3.5.2
- 3.5.3
- 3.5.4
- 3.6.0
- 3.6.1
- 3.6.2
- 3.6.3
- 3.6_base
- 3.7.0
- 3.7.1
- 3.7.2
- 3.7.3
- 3.7_base
- 3.8.0
- 3.8.1
- 3.8.2
- 3.8.3
- 3.8.4
- 3.9.0
- 3.9.1
- 3.9.2
- 3.9.3
- 4.0.0
- 4.0.1
- 4.0.2
- 4.0.3
- 4.0.4
- 4.0.11
- 4.0_base
- 4.1.0
- 4.1.1
- 4.1.2
- 4.1_base
- 4.2.0
- 4.2.1
- 4.2.2
- 4.2.3
- 4.2.4
- 4.3.0
- 4.3.1
- 4.3.2
- 4.3.3
- 4.3.4
- 5.0.0
- 5.0.1
- 5.0_base
- 5.1.0
- 5.1.1.k9sec
- 5.1.2
- 5.1.3
- 5.2.0
- 5.2.1
- 5.2.2
- 5.2.3
- 5.2.4
- 5.2.5
- 5.3.0
- 5.3.1
- 5.3.2
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.
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
AV:N/AC:L/Au:N/C:N/I:N/A:P
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 | 1.76% (0.01765) | 77.24th | v5 (v2026.06.15) |
| Jun 15, 2026 | 1.76% (0.01765) | 75.08th | v5 (v2026.06.15) |
| Mar 17, 2025 | 1.31% (0.01315) | 78.48th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.18% (0.00181) | 56.73th | v3 (v2023.03.01) |
| Jun 22, 2024 | 0.18% (0.00181) | 55.60th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.18% (0.00181) | 53.60th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.05% (0.01055) | 52.13th | v2 (v2022.01.01) |
| Sep 17, 2022 | 1.05% (0.01055) | 50.47th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.05% (0.01055) | 48.43th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.05% (0.01055) | 27.52th | v2 (v2022.01.01) |
References (2)
- http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20160519-ios-xr vendor-advisoryx_refsource_CISCOVendor Advisory
- http://www.securitytracker.com/id/1035934 vdb-entryx_refsource_SECTRACK
| Link | Providers | Tags |
|---|---|---|
| http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20160519-ios-xr | vendor-advisoryx_refsource_CISCOVendor Advisory | |
| http://www.securitytracker.com/id/1035934 | vdb-entryx_refsource_SECTRACK |
Change history (0)
No recorded changes yet.