Is CVE-2003-0693 in the CISA KEV catalog?

No. CVE-2003-0693 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2003-0693?

CVE-2003-0693 has a CVSS v2 base score of 10.0 (HIGH).

What is the EPSS score for CVE-2003-0693?

CVE-2003-0693 has an EPSS score of 9.89% (95th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2003-0693?

Upgrade openssh on debian 11 to 1:3.6.1p2-6.0 or later.

CVE & CISA-KEV Catalog

CVE-2003-0693

HIGHEPSS 95th pctl

10.0

CVSS v2

NVD

Description

A "buffer management error" in buffer_append_space of buffer.c for OpenSSH before 3.7 may allow remote attackers to execute arbitrary code by causing an incorrect amount of memory to be freed and corrupting the heap, a different vulnerability than CVE-2003-0695.

How to fix

Remediation Available

opensshDebian

Fixed in:1:3.6.1p2-6.0CVE-2003-0693

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v2 Vector

No CVSS vector data available.

Exploit Intelligence

9.89%probability of exploitation in 30 days

95thpercentile

High risk: more likely to be exploited than 95% of all known CVEs.

References

Patch1

kb.cert.org

Government Resource1

cert.org

Other references18

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-04-16.