Some web servers under Microsoft Windows allow remote attackers to bypass access…
Priority MEDIUM 49CWE-290Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- High
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- Low · High · Low
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-290.
Summary
Some web servers under Microsoft Windows allow remote attackers to bypass access restrictions for files with long file names.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.18528 97th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
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 · 6
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:microsoft:frontpage:*:*:*:*:*:*:*:* | all versions | Vulnerable | Microsoft |
| cpe:2.3:a:microsoft:internet_information_server:4.0:*:*:*:*:*:*:* | 4.0 | Vulnerable | Microsoft |
| cpe:2.3:a:microsoft:personal_web_server:4.0:*:*:*:*:*:*:* | 4.0 | Vulnerable | Microsoft |
| cpe:2.3:a:netscape:enterprise_server:3.0:*:*:*:*:*:*:* | 3.0 | Vulnerable | Netscape |
| cpe:2.3:a:netscape:fasttrack_server:2.01:*:*:*:*:*:*:* | 2.01 | Vulnerable | Netscape |
| cpe:2.3:a:netscape:fasttrack_server:3.01:*:*:*:*:*:*:* | 3.01 | Vulnerable | Netscape |
- cpe:2.3:a:microsoft:frontpage:*:*:*:*:*:*:*:* Versions all versions Vulnerable ·Microsoft
- cpe:2.3:a:microsoft:internet_information_server:4.0:*:*:*:*:*:*:* Versions 4.0 Vulnerable ·Microsoft
- cpe:2.3:a:microsoft:personal_web_server:4.0:*:*:*:*:*:*:* Versions 4.0 Vulnerable ·Microsoft
- cpe:2.3:a:netscape:enterprise_server:3.0:*:*:*:*:*:*:* Versions 3.0 Vulnerable ·Netscape
- cpe:2.3:a:netscape:fasttrack_server:2.01:*:*:*:*:*:*:* Versions 2.01 Vulnerable ·Netscape
- cpe:2.3:a:netscape:fasttrack_server:3.01:*:*:*:*:*:*:* Versions 3.01 Vulnerable ·Netscape
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-1999-0012
- 2026-10-03 Alias added: GHSA-rvjj-5hjr-3fjf
References
—
Sources
- CVE-1999-0012 · CVE Program
- CVE-1999-0012 · NVD
- FIRST EPSS
- GHSA-rvjj-5hjr-3fjf · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences