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CISA Says Attackers Are Exploiting Two Critical Citrix NetScaler Flaws Globally

The Hacker News
· September 28, 2026

AI summary

The US Cybersecurity and Infrastructure Security Agency has added two critical Citrix NetScaler ADC and Gateway vulnerabilities to its list of known exploited vulnerabilities. These flaws are being actively exploited by attackers globally. One of the vulnerabilities is an improper input validation issue that could allow an unauthenticated attacker to gain access. This particular vulnerability has a high CVSS score of 9.5, indicating a significant level of severity. The agency's move to add these vulnerabilities to its catalog suggests that they are being targeted in ongoing attacks.

Vulnerabilities mentioned

Read the full article at The Hacker Newsthehackernews.com/2026/09/cisa-says-attackers-are-exploiting-two.html

This is an AI-generated brief aggregated by HackerFeeds for convenience and grounded in the source’s own summary; the related CVE, threat-group and country data is from HackerFeeds’ own indexes. The original article is the authoritative source — all rights belong to The Hacker News.