How severe is CVE-2001-0592?

CVE-2001-0592 has a CVSS 2.0 base score of 5.0, rated medium severity.

Is CVE-2001-0592 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (68th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2001-0592?

CVE-2001-0592 affects Watchguard Firebox Ii. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2001-0592?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2001-0592 published?

CVE-2001-0592 was published on 2001-08-02 and last updated on 2026-06-16.

CVE-2001-0592

CVE-2001-0592 is a medium-severity vulnerability in Watchguard Firebox Ii with a CVSS 2.0 base score of 5.0. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: Medium (CVSS 2.0 base score 5.0)
EPSS exploit prediction: 1% (68th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Watchguard Firebox Ii
Published: 2001-08-02
Last modified: 2026-06-16

Description

Watchguard Firebox II prior to 4.6 allows a remote attacker to create a denial of service in the kernel via a large stream (>10,000) of malformed ICMP or TCP packets.

Frequently asked questions

What is CVE-2001-0592?: Watchguard Firebox II prior to 4.6 allows a remote attacker to create a denial of service in the kernel via a large stream (>10,000) of malformed ICMP or TCP packets.
How severe is CVE-2001-0592?: CVE-2001-0592 has a CVSS 2.0 base score of 5.0, rated medium severity.
Is CVE-2001-0592 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (68th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2001-0592?: CVE-2001-0592 affects Watchguard Firebox Ii. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2001-0592?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2001-0592 published?: CVE-2001-0592 was published on 2001-08-02 and last updated on 2026-06-16.

References

Affected products (1)

cpe:2.3:h:watchguard:firebox_ii:*:*:*:*:*:*:*:*

More vulnerabilities in Watchguard Firebox Ii

CVE-2001-0203 — Critical (CVSS 10.0): Watchguard Firebox II firewall allows users with read-only access to gain read-write access, and administrative…
CVE-2001-0204 — Medium (CVSS 5.0): Watchguard Firebox II allows remote attackers to cause a denial of service by establishing multiple connections and…
CVE-2000-1182 — Medium (CVSS 5.0): WatchGuard Firebox II allows remote attackers to cause a denial of service by flooding the Firebox with a large number…

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