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NetScaler ADC
Trends
- 1CISA Warns of Active Exploitation of Critical Citrix NetScaler Flaws●CISA Says Attackers Are Exploiting Two Critical Citrix NetScaler Flaws Globally
The US Cybersecurity and Infrastructure Security Agency says attackers are actively exploiting two critical vulnerabilities in Citrix NetScaler devices worldwide. The flaws affect NetScaler ADC and Gateway products, which are widely used by organisations to manage and secure application traffic. Security teams are being urged to patch immediately, as exploited NetScaler vulnerabilities have historically enabled large-scale breaches of governments and businesses.
- 2Citrix NetScaler Users Urged to Take Appliances Offline Amid Zero-Day Attacks▼Citrix NetScaler Appliance Users Get Shutdown Orders Over Unpatched Zero-Day Exploits Citrix NetScaler ADC and Gateway a
Citrix NetScaler ADC and Gateway appliances are under active attack through two unpatched remote code execution vulnerabilities. The Dutch cybersecurity agency NCSC and security firm watchTowr have advised organisations to take affected appliances offline, as no patches are yet available. Security teams worldwide are scrambling to assess exposure and mitigate the risk of compromise.
- 3Two Unpatched NetScaler Flaws Under Active Exploitation, Researchers Warn▼Third NetScaler emergency since June. watchTowr says two unpatched remote code execution flaws in NetScaler ADC and Gate
Security firm watchTowr reports two unpatched remote code execution vulnerabilities in Citrix NetScaler ADC and Gateway that are being actively exploited. The flaws surfaced during forensic work, marking the third NetScaler emergency since June. Citrix has issued no bulletin, CVEs, or fix yet, with patches expected early next week. Some administrators are already applying workarounds rather than waiting.
- 4Citrix NetScaler flaws actively exploited, thousands exposed●🤖 Citrix NetScaler ADC/Gateway: CVE-2026-88771 + CVE-2026-88772 (unauth RCE) exploited in the wild. The first hits defau
Two unauthenticated remote code execution vulnerabilities, CVE-2026-88771 and CVE-2026-88772, are being exploited in the wild against Citrix NetScaler ADC and Gateway appliances. The first affects default configurations, while the second requires DTLS, which is enabled by default on VPN virtual servers. Patches are available, the flaws have been added to CISA's Known Exploited Vulnerabilities catalog with a federal patching deadline of September 30, and Shadowserver reports over 23,000 exposed instances online.
- 5Citrix issues security bulletin for eight NetScaler vulnerabilities●Citrix has finally spoken. Citrix NetScaler ADC and Citrix NetScaler Gateway Security Bulletin for CVE-2026-88771, CVE-2
Citrix has released a long-awaited security bulletin for its NetScaler ADC and NetScaler Gateway products, covering eight vulnerabilities tracked as CVE-2026-88771 through CVE-2026-88778. Administrators of the widely used application delivery and remote access products are being urged to review the advisory and apply the relevant patches, as NetScaler flaws have historically been heavily exploited.
- 6Citrix NetScaler flaw CVE-2026-88771 draws security attention●CVE-2026-88771: Citrix NetScaler ADC & Citrix NetScaler Gateway Vulnerability
A vulnerability tracked as CVE-2026-88771 has been reported affecting Citrix NetScaler ADC and Citrix NetScaler Gateway, the widely used application delivery and remote access products. Security researchers are flagging the flaw, and organisations running NetScaler appliances are likely to face questions about exposure and patching. Details on severity and exploitation have not been confirmed, so administrators should follow official Citrix advisories.