How severe is CVE-1999-0052?

CVE-1999-0052 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-1999-0052 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (80th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-1999-0052?

CVE-1999-0052 primarily affects Bsdi Bsd Os. In total, 13 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-1999-0052?

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-1999-0052 published?

CVE-1999-0052 was published on 1998-11-04 and last updated on 2026-06-16.

CVE-1999-0052

CVE-1999-0052 is a high-severity vulnerability in Bsdi Bsd Os with a CVSS 3.x base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-476.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v2: 5.0
EPSS exploit prediction: 2% (80th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-476
Affected product: Bsdi Bsd Os
Published: 1998-11-04
Last modified: 2026-06-16

Description

IP fragmentation denial of service in FreeBSD allows a remote attacker to cause a crash.

Frequently asked questions

What is CVE-1999-0052?: IP fragmentation denial of service in FreeBSD allows a remote attacker to cause a crash.
How severe is CVE-1999-0052?: CVE-1999-0052 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-1999-0052 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (80th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-1999-0052?: CVE-1999-0052 primarily affects Bsdi Bsd Os. In total, 13 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-1999-0052?: 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-1999-0052 published?: CVE-1999-0052 was published on 1998-11-04 and last updated on 2026-06-16.

References

Affected products (13)

cpe:2.3:o:bsdi:bsd_os:4.0:*:*:*:*:*:*:*
cpe:2.3:o:freebsd:freebsd:1.1.5.1:*:*:*:*:*:*:*
cpe:2.3:o:freebsd:freebsd:2.0:*:*:*:*:*:*:*
cpe:2.3:o:freebsd:freebsd:2.0.5:*:*:*:*:*:*:*
cpe:2.3:o:freebsd:freebsd:2.1.0:*:*:*:*:*:*:*
cpe:2.3:o:freebsd:freebsd:2.1.5:*:*:*:*:*:*:*
cpe:2.3:o:freebsd:freebsd:2.1.6:*:*:*:*:*:*:*
cpe:2.3:o:freebsd:freebsd:2.1.7.1:*:*:*:*:*:*:*
cpe:2.3:o:freebsd:freebsd:2.2.2:*:*:*:*:*:*:*
cpe:2.3:o:freebsd:freebsd:2.2.8:*:*:*:*:*:*:*
cpe:2.3:o:openbsd:openbsd:2.2:*:*:*:*:*:*:*
cpe:2.3:o:openbsd:openbsd:2.3:*:*:*:*:*:*:*
cpe:2.3:o:openbsd:openbsd:2.4:*:*:*:*:*:*:*

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