JavaScript in Internet Explorer 3.x and 4.x, and Netscape 2.x, 3.x and 4.x, allows remote…
Priority LOW 31Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- — Not recorded in CVSS 2.0
- Attack complexity
- High
- Impact type
- —
- Confidentiality · integrity · availability
- Partial · None · None
- Fix status
- No fix listed
Attack profile from CVSS 2.0 · NVD. Fix status from CNA.
Summary
JavaScript in Internet Explorer 3.x and 4.x, and Netscape 2.x, 3.x and 4.x, allows remote attackers to monitor a user's web activities, aka the Bell Labs vulnerability.
Why it matters now
EPSS 0.18298 97th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 5
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:microsoft:internet_explorer:3.0:*:*:*:*:*:*:* | 3.0 | Vulnerable | Microsoft |
| cpe:2.3:a:microsoft:internet_explorer:4.0:*:*:*:*:*:*:* | 4.0 | Vulnerable | Microsoft |
| cpe:2.3:a:netscape:communicator:2.0:*:*:*:*:*:*:* | 2.0 | Vulnerable | Netscape |
| cpe:2.3:a:netscape:communicator:3.0:*:*:*:*:*:*:* | 3.0 | Vulnerable | Netscape |
| cpe:2.3:a:netscape:communicator:4.0:*:*:*:*:*:*:* | 4.0 | Vulnerable | Netscape |
- cpe:2.3:a:microsoft:internet_explorer:3.0:*:*:*:*:*:*:* Versions 3.0 Vulnerable ·Microsoft
- cpe:2.3:a:microsoft:internet_explorer:4.0:*:*:*:*:*:*:* Versions 4.0 Vulnerable ·Microsoft
- cpe:2.3:a:netscape:communicator:2.0:*:*:*:*:*:*:* Versions 2.0 Vulnerable ·Netscape
- cpe:2.3:a:netscape:communicator:3.0:*:*:*:*:*:*:* Versions 3.0 Vulnerable ·Netscape
- cpe:2.3:a:netscape:communicator:4.0:*:*:*:*:*:*:* Versions 4.0 Vulnerable ·Netscape
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-1999-0031
- 2026-10-03 Alias added: GHSA-r346-6vhr-2jfx
References
Advisory 1
Sources
- CVE-1999-0031 · CVE Program
- CVE-1999-0031 · NVD
- FIRST EPSS
- GHSA-r346-6vhr-2jfx · GitHub Advisory Database · CC BY 4.0
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