CVE-2026-8655 PUBLISHED

Multiple Memory overflow vulnerabilities leading to unpredictable or erroneous behavior and Denial of Service

Assigner: NetScaler
Reserved: 15.05.2026 Published: 30.06.2026 Updated: 30.06.2026

Multiple Memory overflow vulnerabilities in NetScaler ADC and NetScaler Gateway leading to unpredictable or erroneous behavior and Denial of Service if NetScaler ADC is configured as an LB of type Oracle OR NetScaler ADC is configured as a DNS Proxy OR NetScaler ADC is configured as a DNS recursive resolver deployment

Metrics

CVSS 4.0

CVSS Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:H/SC:N/SI:N/SA:L
CVSS Score: 8.8

Exploitability Metrics		Vulnerable System Impact Metrics		Subsequent System Impact Metrics
Attack Vector	Network	Confidentiality	Low	Confidentiality	None
Attack Complexity	Low	Integrity	Low	Integrity	None
Attack Requirements	None	Availability	High	Availability	Low
Privileges Required	None
User Interaction	None

CVSS 4.0

Product Status

Vendor	NetScaler
Product	ADC
Versions	Default: unaffected affected from 14.1 to 72.61 (excl.) affected from 13.1 to 63.18 (excl.) affected from 14.1 FIPS to 72.61 (excl.) affected from 13.1 FIPS and NDcPP to 37.272 (excl.)

Vendor	NetScaler
Product	Gateway
Versions	Default: unaffected affected from 14.1 to 72.61 (excl.) affected from 13.1 to 63.18 (excl.)

References

https://support.citrix.com/support-home/kbsearch/article?articleNumber=CTX696604