How severe is CVE-2001-0596?

CVE-2001-0596 has a CVSS 2.0 base score of 7.5, rated high severity.

Is CVE-2001-0596 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 9% (94th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2001-0596?

CVE-2001-0596 affects Netscape Communicator. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2001-0596?

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-2001-0596 published?

CVE-2001-0596 was published on 2001-08-02 and last updated on 2026-06-16.

CVE-2001-0596

CVE-2001-0596 is a high-severity vulnerability in Netscape Communicator 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: 9% (94th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Netscape Communicator
Published: 2001-08-02
Last modified: 2026-06-16

Description

Netscape Communicator before 4.77 allows remote attackers to execute arbitrary Javascript via a GIF image whose comment contains the Javascript.

Frequently asked questions

What is CVE-2001-0596?: Netscape Communicator before 4.77 allows remote attackers to execute arbitrary Javascript via a GIF image whose comment contains the Javascript.
How severe is CVE-2001-0596?: CVE-2001-0596 has a CVSS 2.0 base score of 7.5, rated high severity.
Is CVE-2001-0596 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 9% (94th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2001-0596?: CVE-2001-0596 affects Netscape Communicator. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2001-0596?: 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-2001-0596 published?: CVE-2001-0596 was published on 2001-08-02 and last updated on 2026-06-16.

References

Affected products (1)

cpe:2.3:a:netscape:communicator:*:*:*:*:*:*:*:*

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