# CVE-2003-0795

## Summary

- **CVE ID:** CVE-2003-0795
- **Severity:** UNKNOWN
- **CVSS Score:** 0.32
- **CWE:** N/A
- **Published:** Nov 18, 2003
- **Last Modified:** Mar 16, 2026

## 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.

## Affected Products

- n/a — n/a (n/a)

## References

- [CNA](http://www.redhat.com/support/errata/RHSA-2003-305.html)
- [CNA](http://marc.info/?l=bugtraq&m=106883387304266&w=2)
- [CNA](http://www.debian.org/security/2004/dsa-415)
- [CNA](http://secunia.com/advisories/10563)
- [CNA](http://www.redhat.com/support/errata/RHSA-2003-307.html)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 8.01%
- **EPSS Percentile:** 91.9

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-19._