How severe is CVE-1999-0768?

CVE-1999-0768 has a CVSS 2.0 base score of 7.5, rated high severity.

Is CVE-1999-0768 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (81st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-1999-0768?

CVE-1999-0768 primarily affects Redhat Linux. In total, 5 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-1999-0768?

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

When was CVE-1999-0768 published?

CVE-1999-0768 was published on 1999-08-25 and last updated on 2026-06-16.

CVE-1999-0768

CVE-1999-0768 is a high-severity vulnerability in Redhat Linux with a CVSS 2.0 base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: High (CVSS 2.0 base score 7.5)
EPSS exploit prediction: 2% (81st percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Redhat Linux
Published: 1999-08-25
Last modified: 2026-06-16

Description

Buffer overflow in Vixie Cron on Red Hat systems via the MAILTO environmental variable.

Frequently asked questions

What is CVE-1999-0768?: Buffer overflow in Vixie Cron on Red Hat systems via the MAILTO environmental variable.
How severe is CVE-1999-0768?: CVE-1999-0768 has a CVSS 2.0 base score of 7.5, rated high severity.
Is CVE-1999-0768 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (81st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-1999-0768?: CVE-1999-0768 primarily affects Redhat Linux. In total, 5 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-1999-0768?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-1999-0768 published?: CVE-1999-0768 was published on 1999-08-25 and last updated on 2026-06-16.

References

http://www.securityfocus.com/bid/602

Affected products (5)

cpe:2.3:o:redhat:linux:4.2:*:*:*:*:*:*:*
cpe:2.3:o:redhat:linux:5.2:*:i386:*:*:*:*:*
cpe:2.3:o:redhat:linux:6.0:*:i386:*:*:*:*:*
cpe:2.3:o:suse:suse_linux:6.0:*:*:*:*:*:*:*
cpe:2.3:o:suse:suse_linux:6.1:*:*:*:*:*:*:*

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