HIGH
The Zone-Based Firewall implementation in Cisco IOS 12.4(122)T and earlier does not properly manage session-object structures, which allows remote attackers to cause a denial of service (device reload) via crafted network traffic, aka Bug ID CSCul65003
Published Feb 13, 2015
7.1
HIGHCVSS 2.0
EPSS 1.55%
Description
The Zone-Based Firewall implementation in Cisco IOS 12.4(122)T and earlier does not properly manage session-object structures, which allows remote attackers to cause a denial of service (device reload) via crafted network traffic, aka Bug ID CSCul65003.
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.
7.1 HIGH NVD
AV:N/AC:M/Au:N/C:N/I:N/A:C
Access Vector Network
Access Complexity Medium
Authentication None
Confidentiality Impact None
Integrity Impact None
Availability Impact Complete
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
1.55% 0.01548
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
EPSS probability 0.01548
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 | 1.55% (0.01548) | 74.13th | v5 (v2026.06.15) |
| Jun 15, 2026 | 1.55% (0.01548) | 71.72th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.72% (0.00724) | 70.87th | 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) |
Weaknesses (1)
References (4)
- http://tools.cisco.com/security/center/content/CiscoSecurityNotice/CVE-2015-0593 vendor-advisoryx_refsource_CISCOVendor Advisory
- http://tools.cisco.com/security/center/viewAlert.x?alertId=37417 x_refsource_CONFIRMVendor Advisory
- http://www.securityfocus.com/bid/72549 vdb-entryx_refsource_BID
- https://exchange.xforce.ibmcloud.com/vulnerabilities/100757 vdb-entryx_refsource_XF
| Link | Providers | Tags |
|---|---|---|
| http://tools.cisco.com/security/center/content/CiscoSecurityNotice/CVE-2015-0593 | vendor-advisoryx_refsource_CISCOVendor Advisory | |
| http://tools.cisco.com/security/center/viewAlert.x?alertId=37417 | x_refsource_CONFIRMVendor Advisory | |
| http://www.securityfocus.com/bid/72549 | vdb-entryx_refsource_BID | |
| https://exchange.xforce.ibmcloud.com/vulnerabilities/100757 | vdb-entryx_refsource_XF |
Change history (0)
No recorded changes yet.
Sources
CVE.org / MITRE
Status PUBLISHED
Assigner cisco
Published Feb 13, 2015
Updated Aug 6, 2024
Reserved Jan 7, 2015
Link CVE-2015-0593
CISA Vulnrichment
Updated n/a