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CVE-2015-0593
The Zone-Based Firewall implementation in Cisco IOS 12.4(122)T and earlier does not properly manage session-object structures, which…
High7.1EPSS 1.5%
- Published
- Updated
- Reserved
- Assigned by
- cisco
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.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 2.0 | High7.1 | AV:N/AC:M/Au:N/C:N/I:N/A:C |
- EPSS (exploitation in 30 days)
- 1.5% · top 25% of all CVEs (4 Nov 2026)
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The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.1.
Weakness
Affected products
n/a
- affected n/a
References (4)
- http://tools.cisco.com/security/center/viewAlert.x?alertId=37417 (opens in a new tab)x_refsource_CONFIRMx_transferred
- 20150209 Cisco IOS Software Zone-Based Firewall Vulnerability (opens in a new tab)vendor-advisoryx_refsource_CISCOx_transferred
- ciscoios-cve20150593-dos(100757) (opens in a new tab)vdb-entryx_refsource_XFx_transferred
- 72549 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2015-0593)Record last updated .