CVE-1999-1555
Cheyenne Inoculan Anti Viru — NVD-CWE-Other
EPSS 1.0%
- Published: 1998-06-11T04:00:00.000
- Last modified: 2025-04-03T01:03:51.193
- Vendors: Cheyenne
- Products: Inoculan Anti Viru
- CWE: NVD-CWE-Other
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.
Related CVE by CWE
No related CWE found.
Top CVE for Vendor
- CVE-1999-1555 (no score)
Recently Exploited Similar Vulnerabilities
No recent KEV-listed items for this vendor/product.
How to fix CVE-1999-1555
CVE-1999-1555 is a unknown severity vulnerability affecting Cheyenne Inoculan Anti Viru.
Description: 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. Related CVE by CWENo related CWE found.Top CVE for VendorCVE-1999-1555 (no score)Recently Exploited Similar VulnerabilitiesNo recent KEV-listed items for […]
Exploit Difficulty: HARD
⏱️ Time to exploit: > 4 hours
🛠️ Required skills: Advanced security expertise
💰 Public exploits: Rare or not public
How to Fix:
- Check if you're running Inoculan Anti Viru
- Update to the latest patched version
- If patching is not immediately possible: restrict network exposure, apply least-privilege access
- Test the fix in a staging environment first
- Review logs for signs of exploitation
- Monitor for IOCs (Indicators of Compromise)
- Enable automatic security updates
- Set up vulnerability monitoring
- Review and harden security configurations
Description: 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. Related CVE by CWENo related CWE found.Top CVE for VendorCVE-1999-1555 (no score)Recently Exploited Similar VulnerabilitiesNo recent KEV-listed items for […]
Exploit Difficulty: HARD
⏱️ Time to exploit: > 4 hours
🛠️ Required skills: Advanced security expertise
💰 Public exploits: Rare or not public
How to Fix:
1 Identify affected systems
- Check if you're running Inoculan Anti Viru
2 Immediate actions
- Update to the latest patched version
- If patching is not immediately possible: restrict network exposure, apply least-privilege access
3 Verification
- Test the fix in a staging environment first
- Review logs for signs of exploitation
- Monitor for IOCs (Indicators of Compromise)
4 Long-term prevention
- Enable automatic security updates
- Set up vulnerability monitoring
- Review and harden security configurations
CWE: NVD-CWE-Other
Exploit Difficulty Assessment
HARD
Time to Exploit: > 4 hours
Skills Required: Advanced security expertise
Public Exploits: Rare or not public
Vulnerability Timeline
Jun 11, 1998
Vulnerability Published
CVE details first published to NVD database
Apr 03, 2025
Last Modified
CVE details were updated
Oct 30, 2025
Imported to Database
Added to this CVE tracking system
Detection Rules & IOCs
No specific detection rules generated for this vulnerability type.
- http://www.securityfocus.com/archive/1/9515 [Exploit, Patch, Vendor Advisory]
- http://www.securityfocus.com/bid/106 []
- https://exchange.xforce.ibmcloud.com/vulnerabilities/1536 []
- http://www.securityfocus.com/archive/1/9515 [Exploit, Patch, Vendor Advisory]
- http://www.securityfocus.com/bid/106 []
- https://exchange.xforce.ibmcloud.com/vulnerabilities/1536 []