CVE-1999-1465
— NVD-CWE-Other
EPSS 0.4%
- Published: 1999-12-31T05:00:00.000
- Last modified: 2025-04-03T01:03:51.193
- CWE: NVD-CWE-Other
Vulnerability in Cisco IOS 11.1 through 11.3 with distributed fast switching (DFS) enabled allows remote attackers to bypass certain access control lists when the router switches traffic from a DFS-enabled input interface to an output interface with a logical subinterface, as described by Cisco bug CSCdk43862.
Related CVE by CWE
No related CWE found.
Top CVE for Vendor
No vendor taxonomy on this entry.
Recently Exploited Similar Vulnerabilities
No recent KEV-listed items for this vendor/product.
How to fix CVE-1999-1465
CVE-1999-1465 is a unknown severity vulnerability affecting the affected product.
Description: Vulnerability in Cisco IOS 11.1 through 11.3 with distributed fast switching (DFS) enabled allows remote attackers to bypass certain access control lists when the router switches traffic from a DFS-enabled input interface to an output interface with a logical subinterface, as described by Cisco bug CSCdk43862. Related CVE by CWENo related CWE found.Top CVE 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 the affected product
- 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: Vulnerability in Cisco IOS 11.1 through 11.3 with distributed fast switching (DFS) enabled allows remote attackers to bypass certain access control lists when the router switches traffic from a DFS-enabled input interface to an output interface with a logical subinterface, as described by Cisco bug CSCdk43862. Related CVE by CWENo related CWE found.Top CVE 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 the affected product
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
Dec 31, 1999
Vulnerability Published
CVE details first published to NVD database
Apr 03, 2025
Last Modified
CVE details were updated
Nov 03, 2025
Imported to Database
Added to this CVE tracking system
Detection Rules & IOCs
No specific detection rules generated for this vulnerability type.
No vendor/product data available.
- http://ciac.llnl.gov/ciac/bulletins/j-016.shtml [Patch, Vendor Advisory]
- http://www.cisco.com/warp/public/770/iosdfsacl-pub.shtml [Patch, Vendor Advisory]
- https://exchange.xforce.ibmcloud.com/vulnerabilities/1401 []
- http://ciac.llnl.gov/ciac/bulletins/j-016.shtml [Patch, Vendor Advisory]
- http://www.cisco.com/warp/public/770/iosdfsacl-pub.shtml [Patch, Vendor Advisory]
- https://exchange.xforce.ibmcloud.com/vulnerabilities/1401 []