CVE-1999-1555
Cheyenne InocuLAN Anti-Virus Server in Inoculan 4.0 before Service Pack 2 creates an update...
Cheyenne InocuLAN Anti-Virus Server in Inoculan 4.0 before Service Pack 2 creates an update directory with "EVERYONE FULL CONTROL" permissions, which allows local users to cause Inoculan's antivirus update feature to install a Trojan horse dll.
Exploit likelihood
What each source reports
NVD Score used
Cheyenne InocuLAN Anti-Virus Server in Inoculan 4.0 before Service Pack 2 creates an update directory with "EVERYONE FULL CONTROL" permissions, which allows local users to cause Inoculan's antivirus update feature to install a Trojan horse dll.
- Record
CVE-1999-1555- CVSS 2.0
- 7.2 High
AV:L/AC:L/Au:N/C:C/I:C/A:C - Updated
- 2026-11-02
CVE List No score
Cheyenne InocuLAN Anti-Virus Server in Inoculan 4.0 before Service Pack 2 creates an update directory with "EVERYONE FULL CONTROL" permissions, which allows local users to cause Inoculan's antivirus update feature to install a Trojan horse dll.
- Record
CVE-1999-1555- Updated
- 2026-11-02
EUVDEUVD-1999-1536 No score
Cheyenne InocuLAN Anti-Virus Server in Inoculan 4.0 before Service Pack 2 creates an update directory with "EVERYONE FULL CONTROL" permissions, which allows local users to cause Inoculan's antivirus update feature to install a Trojan horse dll.
- Record
EUVD-1999-1536- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-66v7-mjfq-96pv No score
Cheyenne InocuLAN Anti-Virus Server in Inoculan 4.0 before Service Pack 2 creates an update...
Cheyenne InocuLAN Anti-Virus Server in Inoculan 4.0 before Service Pack 2 creates an update directory with "EVERYONE FULL CONTROL" permissions, which allows local users to cause Inoculan's antivirus update feature to install a Trojan horse dll.
- Record
GHSA-66v7-mjfq-96pv- Updated
- 2026-11-02
Affected products
Public exploits
Links only. Every CVE stores no exploit code.
| Source | Link | Date |
|---|---|---|
| Exploit-DB | Cheyenne Inoculan for Windows NT 4.0 - Share | 1998-06-10 |
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, Exploit-DB, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-1999-1555 is a high vulnerability (CVSS 7.2) in Cheyenne Inoculan Anti-virus Server, published June 11, 1998. Public exploit code exists. EPSS puts the chance of exploitation in the next 30 days at 1.04%, the 64th percentile. No source names a fixed version.