# Exploitation of vulnerabilities affecting Citrix NetScaler ADC and Citrix NetScaler Gateway

Publisher-attributed story with a reviewed brief or permitted publisher paragraph. The original publisher is responsible for the linked reporting.

- Publisher: UK National Cyber Security Centre
- Category: Cyber
- Original publication time: 2026-09-28T12:00:00Z
- First observed by NexusTechWire: 2026-10-01T20:28:39Z
- Original source: https://www.ncsc.gov.uk/news/exploitation-of-vulnerabilities-affecting-citrix-netscaler-adc-and-citrix-netscaler-gateway
- NexusTechWire record: https://nexustechwire.com/news/news-7b1e1e501b33f733192f

## The brief

UK NCSC says CVE-2026-88771 and CVE-2026-88772 are being actively exploited in customer-managed Citrix NetScaler ADC and Gateway systems. They are two of eight vulnerabilities covered by Citrix's bulletin. The agency urges affected operators to investigate for compromise, isolate and replace systems where possible, and install current updates. It says the impact on UK organisations is still being assessed.

AI-assisted NexusTechWire summary, checked against the linked source on 2026-10-01T21:18:05Z. Not independent reporting.

Source license: [Open Government Licence v3.0](https://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/). Source material adapted into an original NexusTechWire brief. Original source license applies. Contains public sector information licensed under the Open Government Licence v3.0.

Read the full original: [UK National Cyber Security Centre](https://www.ncsc.gov.uk/news/exploitation-of-vulnerabilities-affecting-citrix-netscaler-adc-and-citrix-netscaler-gateway)

This record does not reproduce the complete article or represent independent confirmation of every source claim.