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CVE-2003-0795
The vty layer in Quagga before 0.96.4, and Zebra 0.93b and earlier, does not verify that sub-negotiation is taking place when processing…
Medium5.0EPSS 8.4%
- Published
- Updated
- Reserved
- Assigned by
- mitre
Description
The vty layer in Quagga before 0.96.4, and Zebra 0.93b and earlier, does not verify that sub-negotiation is taking place when processing the SE marker, which allows remote attackers to cause a denial of service (crash) via a malformed telnet command to the telnet CLI port, which may trigger a null dereference.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 2.0 | Medium5.0 | AV:N/AC:L/Au:N/C:N/I:N/A:P |
- EPSS (exploitation in 30 days)
- 8.4% · top 5.0% of all CVEs (2 Nov 2026)
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.0.
Weakness
Affected products
n/a
- affected n/a
References (5)
- RHSA-2003:305 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- 20031114 Quagga remote vulnerability (opens in a new tab)mailing-listx_refsource_BUGTRAQx_transferred
- DSA-415 (opens in a new tab)vendor-advisoryx_refsource_DEBIANx_transferred
- 10563 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- RHSA-2003:307 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_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)
Record last updated .