How severe is CVE-1999-1309?

CVE-1999-1309 has a CVSS 2.0 base score of 7.2, rated high severity.

Is CVE-1999-1309 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (35th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-1999-1309?

CVE-1999-1309 affects Sendmail. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-1999-1309?

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-1999-1309 published?

CVE-1999-1309 was published on 1996-08-30 and last updated on 2026-06-16.

CVE-1999-1309

CVE-1999-1309 is a high-severity vulnerability in Sendmail with a CVSS 2.0 base score of 7.2. 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 7.2)
EPSS exploit prediction: 0% (35th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Sendmail
Published: 1996-08-30
Last modified: 2026-06-16

Description

Sendmail before 8.6.7 allows local users to gain root access via a large value in the debug (-d) command line option.

Frequently asked questions

What is CVE-1999-1309?: Sendmail before 8.6.7 allows local users to gain root access via a large value in the debug (-d) command line option.
How severe is CVE-1999-1309?: CVE-1999-1309 has a CVSS 2.0 base score of 7.2, rated high severity.
Is CVE-1999-1309 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (35th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-1999-1309?: CVE-1999-1309 affects Sendmail. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-1999-1309?: 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-1999-1309 published?: CVE-1999-1309 was published on 1996-08-30 and last updated on 2026-06-16.

References

Affected products (1)

cpe:2.3:a:sendmail:sendmail:*:*:*:*:*:*:*:*

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