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Citrix pushes urgent NetScaler patches to close two critical flaws
technology5 days ago

Citrix pushes urgent NetScaler patches to close two critical flaws

Citrix is urging admins to urgently patch NetScaler ADC and Gateway to fix two high-severity flaws (CVE-2026-19490 auth bypass and CVE-2026-19489 DoS via SIP ALG). Upgrades to specific builds (14.1-73.32+, 13.1-63.21+, including FIPS/NDcPP variants) are advised; admins should review the security bulletin, assess exposure, and apply updates promptly, as past NetScaler CVEs have been exploited in the wild and millions of instances remain exposed.

via BleepingComputer|
#citrix#cybersecurity#netscaler
"Urgent Security Alert: Critical Zero-Day Exploits Target Atlassian, Citrix, and VMware Products"
cybersecurity2 years ago

"Urgent Security Alert: Critical Zero-Day Exploits Target Atlassian, Citrix, and VMware Products"

Citrix has warned customers to immediately patch their Netscaler ADC and Gateway appliances against two actively exploited zero-day vulnerabilities, CVE-2023-6548 and CVE-2023-6549, which can lead to remote code execution and denial-of-service attacks. The vulnerabilities impact the Netscaler management interface and affect specific product versions. Citrix advises affected customers to install updated versions, separate the management interface from normal network traffic, and avoid exposing it to the internet to reduce the risk of exploitation. Additionally, a previous critical Netscaler flaw, CVE-2023-4966, was also exploited as a zero-day, prompting alerts from organizations like HHS' Health Sector Cybersecurity Coordination Center to secure their Netscaler instances against ransomware attacks.

via BleepingComputer|
#citrix#cybersecurity#netscaler