On March 23, 2026, Citrix published a security advisory for a critical vulnerability affecting their NetScaler ADC (formerly Citrix ADC) and NetScaler Gateway (formerly Citrix Gateway) products.
This vulnerability, CVE-2026-3055, which is classified as an out-of-bounds read and holds a CVSS score of 9.3, allows unauthenticated remote attackers to leak potentially sensitive information from the appliance’s memory. The Citrix advisory states that systems configured as a SAML Identity Provider (SAML IDP) are vulnerable, whereas default configurations are unaffected. This SAML IDP configuration is likely a very common configuration for organizations utilizing single sign-on.
Read more…
Source: Rapid7
Sign up for the Cyber Security Review Newsletter
The latest cyber security news and insights delivered right to your inbox
Related:
- CVE-2026-3055: Citrix NetScaler ADC and NetScaler Gateway Out-of-Bounds Read
March 23, 2026
On March 23, 2026, Citrix published a security advisory for a critical vulnerability affecting their NetScaler ADC (formerly Citrix ADC) and NetScaler Gateway (formerly Citrix Gateway) products. This vulnerability, CVE-2026-3055, which is classified as an out-of-bounds read and holds a CVSS score of 9.3, allows unauthenticated remote attackers to leak potentially sensitive information from the appliance’s ...
- CVE-2026-31381, CVE-2026-31382: Gainsight Assist Information Disclosure and Cross-Site Scripting (FIXED)
March 20, 2026
Rapid7 Labs recently identified a chain of security vulnerabilities in the Gainsight Assist plugin and its interactions with the associated domain app.gainsight.com. These vulnerabilities include an Information Disclosure flaw (CVE-2026-31381) and a Reflected Cross-Site Scripting (XSS) vulnerability (CVE-2026-31382). By chaining these vulnerabilities, an attacker can move from passive information gathering to active client-side exploitation. The XSS ...
- Unknown attackers exploit yet another critical SharePoint bug
March 19, 2026
Unknown baddies are abusing yet another critical Microsoft SharePoint bug to compromise victims’ SharePoint servers, the US government warned. CVE-2026-20963 is a critical deserialization flaw in SharePoint that allows unauthenticated attackers to remotely execute code on the server without any user interaction, and Redmond fixed the issue as part of its January Patch Tuesday. At the ...
- CISA urges companies to secure Microsoft Intune systems after hackers mass-wipe Stryker devices
March 19, 2026
The U.S. Cybersecurity and Infrastructure Security Agency (CISA) has warned companies to secure systems for managing their fleets of employee devices after pro-Iran hackers broke into medical tech giant Stryker and mass-wiped thousands of its phones, tablets, and computers. The agency said on Thursday that it was urging companies to take action and confirmed it was ...
- DarkSword: Second iOS exploit chain in a month targeting iPhone users
March 18, 2026
A new exploit kit targeting iPhone users and stealing their sensitive data is being abused by “multiple” spyware vendors and suspected nation-state goons, security researchers said on Wednesday. The exploit kit, called DarkSword, has been in use since at least November 2025. It supports iOS versions 18.4 through 18.7, and exploits six different vulnerabilities to deploy ...
- Apple patches WebKit bug that could let sites access your data
March 18, 2026
WebKit vulnerabilities refer to security flaws in Apple’s web rendering engine, which powers Safari, Mail, and the App Store on iOS and macOS. What this means is that the CVE-2026-20643 vulnerability makes it possible for a malicious website to pretend to be another site, maybe one you trust, and then read or steal information that should ...