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TI-2001-00581 Aliases CVE-2001-0596GHSA-3rw6-mp6q-pg53

Netscape Communicator before 4.77 allows remote attackers to execute arbitrary Javascript…

Priority MEDIUM 44Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
— Not recorded in CVSS 2.0
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
Partial · Partial · Partial
Fix status
Fixed

Attack profile from CVSS 2.0 · NVD. Fix status from CNA and Red Hat.

Summary

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

Why it matters now

EPSS 0.08687 95th percentileScored 2026-11-07
Fix Fixed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:netscape:communicator:*:*:*:*:*:*:*:*up to 4.77VulnerableNetscape
  • cpe:2.3:a:netscape:communicator:*:*:*:*:*:*:*:* Versions up to 4.77 Vulnerable ·Netscape

Remediation

No fixed version listed by the sources yet.

Vendor assessments

Red Hat

Red Hat's page for this CVE →

ProductStatusPlan or fix
Red Hat Linux 6.2Fixed RHSA-2001:046
Red Hat Linux 7.0Fixed RHSA-2001:046
Red Hat Linux 7.1Fixed RHSA-2001:046

Timeline

  1. 2026-10-02 Threatist record created from CVE-2001-0596
  2. 2026-10-03 Alias added: GHSA-3rw6-mp6q-pg53
  3. 2026-10-07 EPSS moved to the 95th–99th percentile

References

Patch 2

Advisory 2

Other 2

  • TI-2000-00709 Netscape Communicator does not properly prevent a ServerSocket object from being created… CVSS 2.0HIGH 7.5
  • TI-2002-02160 Buffer overflow in the sun.awt.windows.WDefaultFontCharset Java class implementation in… CVSS 2.0HIGH 10.0
  • TI-2000-00674 Netscape Communicator and Navigator 4.04 through 4.74 allows remote attackers to read… CVSS 2.0MEDIUM 5.0
  • TI-1999-00528 A configuration in a web browser such as Internet Explorer or Netscape Navigator allows… CVSS 2.0HIGH 7.5
  • TI-2002-00577 Buffer overflow in Netscape 6 and Mozilla 1.0 RC1 and earlier allows remote attackers to… CVSS 2.0HIGH 7.5
  • TI-1999-00435 The byte code verifier component of the Java Virtual Machine (JVM) allows remote execution through malicious web pages. CVSS 2.0HIGH 7.5
See all 34 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences