How severe is CVE-2003-1376?

CVE-2003-1376 has a CVSS 2.0 base score of 4.6, rated medium severity.

Is CVE-2003-1376 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (15th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2003-1376?

CVE-2003-1376 affects Winzip. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2003-1376?

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

When was CVE-2003-1376 published?

CVE-2003-1376 was published on 2003-12-31 and last updated on 2026-06-16.

CVE-2003-1376

CVE-2003-1376 is a medium-severity vulnerability in Winzip 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. The underlying weakness is classified as CWE-255.

Key facts

Severity: Medium (CVSS 2.0 base score 4.6)
EPSS exploit prediction: 0% (15th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-255
Affected product: Winzip
Published: 2003-12-31
Last modified: 2026-06-16

Description

WinZip 8.0 uses weak random number generation for password protected ZIP files, which allows local users to brute force the encryption keys and extract the data from the zip file by guessing the state of the stream coder.

Frequently asked questions

What is CVE-2003-1376?: WinZip 8.0 uses weak random number generation for password protected ZIP files, which allows local users to brute force the encryption keys and extract the data from the zip file by guessing the state of the stream coder.
How severe is CVE-2003-1376?: CVE-2003-1376 has a CVSS 2.0 base score of 4.6, rated medium severity.
Is CVE-2003-1376 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (15th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2003-1376?: CVE-2003-1376 affects Winzip. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2003-1376?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2003-1376 published?: CVE-2003-1376 was published on 2003-12-31 and last updated on 2026-06-16.

References

Affected products (1)

cpe:2.3:a:winzip:winzip:8.0:*:*:*:*:*:*:*

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