CVE-2023-6549

HighCVSS 7.5/10Known exploited (CISA KEV)Last modified Jun 17, 2026

Description

Improper Restriction of Operations within the Bounds of a Memory Buffer in NetScaler ADC and NetScaler Gateway allows Unauthenticated Denial of Service and Out-Of-Bounds Memory Read

Metrics

CVSS 3.1 7.5/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Weakness enumeration

Affected software

VendorProductVersions
Cloud Software GroupNetScaler ADC>= 14.1, < 12.35; >= 13.1, < 51.15; >= 13.0, < 92.21; >= 13.1-FIPS, < 37.176; >= 12.1-FIPS, < 55.302; >= 12.1-NDcPP, < 55.302

References

Timeline

Published
Jan 17, 2024
Last modified
Jun 17, 2026
Added to CISA KEV
Jan 17, 2024
NVD status
Analyzed

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CVE-2023-6549: High severity, CVSS 7.5 | Vulnix