CVE-1999-1129

UnknownEPSS 1.60%

Last modified

CVE-1999-1129 is a vulnerability of currently unknown severity. Cisco Catalyst 2900 Virtual LAN (VLAN) switches allow remote attackers to inject 802.1q frames into another VLAN by forging the VLAN identifier in the trunking tag.. EPSS estimates a 1.60% chance of exploitation in the next 30 days.

Description

Cisco Catalyst 2900 Virtual LAN (VLAN) switches allow remote attackers to inject 802.1q frames into another VLAN by forging the VLAN identifier in the trunking tag.

Metrics

EPSS Probability
1.60%

72.7th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

VendorProductVersions
CiscoIos11.2\(8\)sa5
CiscoCatalyst 2900 VlanAll versions

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-1999-1129?
Cisco Catalyst 2900 Virtual LAN (VLAN) switches allow remote attackers to inject 802.1q frames into another VLAN by forging the VLAN identifier in the trunking tag.
How severe is CVE-1999-1129?
Severity scoring for CVE-1999-1129 is pending analysis. The EPSS model estimates a 1.60% probability of exploitation in the next 30 days.
How do I fix CVE-1999-1129?
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-1999-1129?

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

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Source: NVD / NIST