How severe is CVE-2001-1104?

CVE-2001-1104 has a CVSS 2.0 base score of 7.5, rated high severity.

Is CVE-2001-1104 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 7% (93rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2001-1104?

CVE-2001-1104 primarily affects Sonicwall Soho Firmware. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2001-1104?

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-2001-1104 published?

CVE-2001-1104 was published on 2001-07-25 and last updated on 2026-06-16.

CVE-2001-1104

CVE-2001-1104 is a high-severity vulnerability in Sonicwall Soho Firmware 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: 7% (93rd percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Sonicwall Soho Firmware
Published: 2001-07-25
Last modified: 2026-06-16

Description

SonicWALL SOHO uses easily predictable TCP sequence numbers, which allows remote attackers to spoof or hijack sessions.

Frequently asked questions

What is CVE-2001-1104?: SonicWALL SOHO uses easily predictable TCP sequence numbers, which allows remote attackers to spoof or hijack sessions.
How severe is CVE-2001-1104?: CVE-2001-1104 has a CVSS 2.0 base score of 7.5, rated high severity.
Is CVE-2001-1104 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 7% (93rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2001-1104?: CVE-2001-1104 primarily affects Sonicwall Soho Firmware. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2001-1104?: 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-2001-1104 published?: CVE-2001-1104 was published on 2001-07-25 and last updated on 2026-06-16.

References

Affected products (3)

cpe:2.3:o:sonicwall:soho_firmware:4.0.0:*:*:*:*:*:*:*
cpe:2.3:o:sonicwall:soho_firmware:5.0.0:*:*:*:*:*:*:*
cpe:2.3:o:sonicwall:soho_firmware:5.1.5.0:*:*:*:*:*:*:*

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