CVE-1999-0775

Name: CVE-1999-0775
Creator: NVD / NIST
Published: 1999-06-10T04:00:00+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 3.13%

Last modified Jun 16, 2026

CVE-1999-0775 is a vulnerability of currently unknown severity. 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.. EPSS estimates a 3.13% chance of exploitation in the next 30 days.

Description

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.

Metrics

EPSS Probability

3.13%

86.2th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

Vendor	Product	Versions
Cisco	Ios	11.2\(14\)gs2
Cisco	Ios	11.2\(15\)g

References

Timeline

Published: Jun 10, 1999
Last Modified: Jun 16, 2026
Status: Modified

Frequently Asked Questions

What is CVE-1999-0775?

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.

How severe is CVE-1999-0775?

Severity scoring for CVE-1999-0775 is pending analysis. The EPSS model estimates a 3.13% probability of exploitation in the next 30 days.

How do I fix CVE-1999-0775?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-1999-0775?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST