How severe is CVE-1999-1104?

CVE-1999-1104 has a CVSS 2.0 base score of 4.6, rated medium severity.

Is CVE-1999-1104 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (59th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-1999-1104?

CVE-1999-1104 affects Microsoft Windows 95. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-1999-1104?

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

When was CVE-1999-1104 published?

CVE-1999-1104 was published on 1999-12-31 and last updated on 2026-06-16.

CVE-1999-1104

CVE-1999-1104 is a medium-severity vulnerability in Microsoft Windows 95 with a CVSS 2.0 base score of 4.6. 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 4.6)
EPSS exploit prediction: 1% (59th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Microsoft Windows 95
Published: 1999-12-31
Last modified: 2026-06-16

Description

Windows 95 uses weak encryption for the password list (.pwl) file used when password caching is enabled, which allows local users to gain privileges by decrypting the passwords.

Frequently asked questions

What is CVE-1999-1104?: Windows 95 uses weak encryption for the password list (.pwl) file used when password caching is enabled, which allows local users to gain privileges by decrypting the passwords.
How severe is CVE-1999-1104?: CVE-1999-1104 has a CVSS 2.0 base score of 4.6, rated medium severity.
Is CVE-1999-1104 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (59th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-1999-1104?: CVE-1999-1104 affects Microsoft Windows 95. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-1999-1104?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-1999-1104 published?: CVE-1999-1104 was published on 1999-12-31 and last updated on 2026-06-16.

References

Affected products (1)

cpe:2.3:o:microsoft:windows_95:*:*:*:*:*:*:*:*

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