How severe is CVE-1999-0042?

CVE-1999-0042 has a CVSS 2.0 base score of 10.0, rated critical severity.

Is CVE-1999-0042 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 13% (96th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-1999-0042?

CVE-1999-0042 primarily affects University Of Washington Imap. In total, 8 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-1999-0042?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

When was CVE-1999-0042 published?

CVE-1999-0042 was published on 1997-04-07 and last updated on 2026-06-16.

CVE-1999-0042

CVE-1999-0042 is a critical-severity vulnerability in University Of Washington Imap with a CVSS 2.0 base score of 10.0. Its EPSS exploit-prediction score of 13% places it in the 96th percentile, indicating an elevated likelihood of exploitation.

Key facts

Severity: Critical (CVSS 2.0 base score 10.0)
EPSS exploit prediction: 13% (96th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: University Of Washington Imap
Published: 1997-04-07
Last modified: 2026-06-16

Description

Buffer overflow in University of Washington's implementation of IMAP and POP servers.

Frequently asked questions

What is CVE-1999-0042?: Buffer overflow in University of Washington's implementation of IMAP and POP servers.
How severe is CVE-1999-0042?: CVE-1999-0042 has a CVSS 2.0 base score of 10.0, rated critical severity.
Is CVE-1999-0042 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 13% (96th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-1999-0042?: CVE-1999-0042 primarily affects University Of Washington Imap. In total, 8 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-1999-0042?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-1999-0042 published?: CVE-1999-0042 was published on 1997-04-07 and last updated on 2026-06-16.

References

https://exchange.xforce.ibmcloud.com/vulnerabilities/CVE-1999-0042

Affected products (8)

cpe:2.3:a:university_of_washington:imap:4:*:*:*:*:*:*:*
cpe:2.3:a:university_of_washington:pop:3:*:*:*:*:*:*:*
cpe:2.3:o:bsdi:bsd_os:2.1:*:*:*:*:*:*:*
cpe:2.3:o:bsdi:bsd_os:3.0:*:*:*:*:*:*:*
cpe:2.3:o:caldera:openlinux:1.0:*:*:*:*:*:*:*
cpe:2.3:o:ibm:aix:4.2.1:*:*:*:*:*:*:*
cpe:2.3:o:redhat:linux:2.0:*:*:*:*:*:*:*
cpe:2.3:o:redhat:linux:4.0:*:*:*:*:*:*:*

More vulnerabilities in University Of Washington Imap

CVE-1999-0920 — Critical (CVSS 10.0): Buffer overflow in the pop-2d POP daemon in the IMAP package allows remote attackers to gain privileges via the FOLD…
CVE-1999-0005 — Critical (CVSS 10.0): Arbitrary command execution via IMAP buffer overflow in authenticate command.
CVE-2000-0847 — High (CVSS 7.5): Buffer overflow in University of Washington c-client library (used by pine and other programs) allows remote attackers…
CVE-2000-0284 — High (CVSS 7.5): Buffer overflow in University of Washington imapd version 4.7 allows users with a valid account to execute commands via…
CVE-2008-5514 — Medium (CVSS 4.3): Off-by-one error in the rfc822_output_char function in the RFC822BUFFER routines in the University of Washington (UW)…
CVE-2000-1197 — Low (CVSS 2.1): POP2 or POP3 server (pop3d) in imap-uw IMAP package on FreeBSD and other operating systems creates lock files with…

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