How severe is CVE-1999-0837?

CVE-1999-0837 has a CVSS 2.0 base score of 10.0, rated critical severity.

Is CVE-1999-0837 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (84th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-1999-0837?

CVE-1999-0837 primarily affects Isc Bind. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-1999-0837?

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-1999-0837 published?

CVE-1999-0837 was published on 1999-11-10 and last updated on 2026-06-16.

CVE-1999-0837

CVE-1999-0837 is a critical-severity vulnerability in Isc Bind with a CVSS 2.0 base score of 10.0. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: Critical (CVSS 2.0 base score 10.0)
EPSS exploit prediction: 3% (84th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Isc Bind
Published: 1999-11-10
Last modified: 2026-06-16

Description

Denial of service in BIND by improperly closing TCP sessions via so_linger.

Frequently asked questions

What is CVE-1999-0837?: Denial of service in BIND by improperly closing TCP sessions via so_linger.
How severe is CVE-1999-0837?: CVE-1999-0837 has a CVSS 2.0 base score of 10.0, rated critical severity.
Is CVE-1999-0837 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (84th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-1999-0837?: CVE-1999-0837 primarily affects Isc Bind. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-1999-0837?: 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-1999-0837 published?: CVE-1999-0837 was published on 1999-11-10 and last updated on 2026-06-16.

References

Affected products (4)

cpe:2.3:a:isc:bind:8.2:*:*:*:*:*:*:*
cpe:2.3:a:isc:bind:8.2.1:*:*:*:*:*:*:*
cpe:2.3:o:sun:solaris:7.0:*:x86:*:*:*:*:*
cpe:2.3:o:sun:sunos:5.7:*:*:*:*:*:*:*

More vulnerabilities in Isc Bind

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CVE-2000-1029 — Critical (CVSS 10.0): Buffer overflow in host command allows a remote attacker to execute arbitrary commands via a long response to an AXFR…
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