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CVE-1999-0775

Cisco Gigabit Switch routers running IOS allow remote attackers to forward unauthorized packets...

10.0 High

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.

What does this mean?
Severity
10.0 HighCVSS 2.0, NVD
Exploit chance
3.19%EPSS, 88th percentile
Exploitation
None knownNot on CISA’s or ENISA’s lists
Fixed in
No fix listedNo source names one

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.

Exploit likelihood

3.19%Up 2.1 points since Feb 4, 2022
90%50%10%1%

Affected products

What each source reports

NVD Score used10.0

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 HighAV:N/AC:L/Au:N/C:C/I:C/A:C
Updated
2026-11-02
CVE ListNo 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-1999-0756No 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-fvc6-86qwNo 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

History

History
RecordedChangedSources
facts
aliasesEUVD
first indexedCVE List, GitHub Advisories, NVD

Dates are when Every CVE recorded each change. Upstream dates may differ.

References

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