CVE-1999-0775
Cisco Gigabit Switch routers running IOS allow remote attackers to forward unauthorized packets...
Cisco Gigabit Switch routers running IOS allow remote attackers to forward unauthorized packets due to improper handling of the "established" keyword in an access list.
Exploit likelihood
What each source reports
NVD Score used
Cisco Gigabit Switch routers running IOS allow remote attackers to forward unauthorized packets due to improper handling of the "established" keyword in an access list.
- Record
CVE-1999-0775- CVSS 2.0
- 10.0 High
AV:N/AC:L/Au:N/C:C/I:C/A:C - Updated
- 2026-11-02
CVE List No score
Cisco Gigabit Switch routers running IOS allow remote attackers to forward unauthorized packets due to improper handling of the "established" keyword in an access list.
- Record
CVE-1999-0775- Updated
- 2026-11-02
EUVDEUVD-1999-0756 No score
Cisco Gigabit Switch routers running IOS allow remote attackers to forward unauthorized packets due to improper handling of the "established" keyword in an access list.
- Record
EUVD-1999-0756- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-vjxr-fvc6-86qw No score
Cisco Gigabit Switch routers running IOS allow remote attackers to forward unauthorized packets...
Cisco Gigabit Switch routers running IOS allow remote attackers to forward unauthorized packets due to improper handling of the "established" keyword in an access list.
- Record
GHSA-vjxr-fvc6-86qw- Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-1999-0775 is a high vulnerability (CVSS 10.0) in Cisco Ios, published June 10, 1999. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 3.19%, the 88th percentile. No source names a fixed version.