Is CVE-1999-0945 in the CISA KEV catalog?

No. CVE-1999-0945 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-1999-0945?

CVE-1999-0945 has a CVSS v2 base score of 5.0 (MEDIUM).

What is the EPSS score for CVE-1999-0945?

CVE-1999-0945 has an EPSS score of 19.52% (97th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix or mitigate CVE-1999-0945?

No published fix for CVE-1999-0945 has been found yet. Check the linked vendor advisories for guidance as it becomes available.

CVE & CISA-KEV Catalog

CVE-1999-0945

MEDIUMEPSS 97th pctl

5.0

CVSS v2

NVD

Description

Buffer overflow in Internet Mail Service (IMS) for Microsoft Exchange 5.5 and 5.0 allows remote attackers to conduct a denial of service via AUTH or AUTHINFO commands.

CWE-120Classic Buffer Overflow

How to fix

No published remediation has been found for this vulnerability's affected products yet.

Mitigation guidance may be in the linked vendor advisories in the References section below.

TridentStack Control tracks known vulnerabilities across your Windows, macOS, and Linux fleet and shows the fix as soon as one is published. See how it works

CVSS v2 Vector

No CVSS vector data available.

Exploit Intelligence

19.52%probability of exploitation in 30 days

97thpercentile

Very high risk: more likely to be exploited than 97% of all known CVEs.

References

Patch2

VDB Entry1

exchange.xforce.ibmcloud.com

Other references1

support.microsoft.com

Related Vulnerabilities

Other CWE-120 (Classic Buffer Overflow) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2014-0195	Medium	6.8	100%	-	Fix
CVE-2017-7269	Critical	9.8	100%	KEV	-
CVE-2019-11043	High	8.7	99%	KEV + Ransom	Fix
CVE-2011-4862	High	10.0	95%	-	Fix
CVE-2007-5659	High	7.8	94%	KEV	Fix
CVE-2022-3786	High	7.5	92%	-	Fix

Embed a live status badge for CVE-1999-0945

Markdown

[![CVE-1999-0945](https://tridentstack.com/cve/badge/CVE-1999-0945.svg)](https://tridentstack.com/cve/CVE-1999-0945)

HTML

<a href="https://tridentstack.com/cve/CVE-1999-0945"><img src="https://tridentstack.com/cve/badge/CVE-1999-0945.svg" alt="CVE-1999-0945"></a>

Find and fix vulnerabilities across your fleet

TridentStack Control continuously scans your Windows, macOS, and Linux fleet for known vulnerabilities, prioritizes them by severity and active exploitation, and patches them automatically.

See how it works Start freeThis CVE lookup is free and always will be.

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.