Newly disclosed vulnerability Common Vulnerabilities and Exposures (CVE)-2026-24858 [Common Weakness Enumeration (CWE)-288: Authentication Bypass Using an Alternate Path or Channel] allows malicious actors with a FortiCloud account and a registered device to log in to separate devices registered to other users in FortiOS, FortiManager, FortiWeb, FortiProxy, and FortiAnalyzer, if FortiCloud single sign on (SSO) is enabled on devices.
Users are vulnerable to CVE-2026-24858 even if they updated Fortinet devices to address previously disclosed FortiCloud SSO bypass vulnerabilities CVE-2025-59718 and CVE-2025-59719 [CWE-347: Improper Verification of Cryptographic Signature]. CVE-2025-59718 and CVE-2025-59719 affect FortiOS, FortiWeb, FortiProxy, and FortiSwitch Manager, and allow malicious actors to bypass the SSO login authentication via a crafted Security Assertion Markup Language (SAML) message.
Read more…
Source: U.S. Cybersecurity and Infrastructure Security Agency
Sign up for the Cyber Security Review Newsletter
The latest cyber security news and insights delivered right to your inbox
Related:
- What We Know About CVE-2024-49112 and CVE-2024-49113
January 4, 2025
In December 2024, two Windows Lightweight Directory Access Protocol (LDAP) vulnerabilities were identified by independent security researcher Yuki Chen: CVE-2024-49112, a remote code execution (RCE) flaw with a 9.8 CVSS score, and CVE-2024-49113, a denial-of-service (DoS) flaw with a 7.5 CVSS score. This blog entry provides an overview of these two vulnerabilities and includes information that ...
- Google Chrome extensions targeted by hackers to steal user passwords
December 30, 2024
Cyberhaven has confirmed its Google Chrome extension was the subject of a Christmas Eve cyberattack, exposing sensitive customer data like passwords and session tokens. In a statement, the data loss prevention company noted the attack showed signs of being part of a “wider campaign” to target other companies, too. The attack started as many others do ...
- WhatsApp scores historic victory against NSO Group in long-running spyware hacking case
December 23, 2024
A U.S. judge has ruled that Israeli spyware maker NSO Group breached hacking laws by using WhatsApp to infect devices with its Pegasus spyware. In a historic ruling on Friday, a Northern California federal judge held NSO Group liable for targeting the devices of 1,400 WhatsApp users, violating state and federal hacking laws as well as ...
- Cloud Atlas seen using a new tool in its attacks
December 23, 2024
Known since 2014, Cloud Atlas targets Eastern Europe and Central Asia. We’re shedding light on a previously undocumented toolset, which the group used heavily in 2024. Victims get infected via phishing emails containing a malicious document that exploits a vulnerability in the formula editor (CVE-2018-0802) to download and execute malware code. When opened, the document downloads a ...
- Attackers exploiting a patched FortiClient EMS vulnerability in the wild
December 19, 2024
During a recent incident response, Kaspersky’s GERT team identified a set of TTPs and indicators linked to an attacker that infiltrated a company’s networks by targeting a Fortinet vulnerability for which a patch was already available. This vulnerability is an improper filtering of SQL command input making the system susceptible to an SQL injection. It specifically ...
- U.S. Considers Ban On Chinese Made TP-Link Routers
December 18, 2024
The United States government is taking aim at TP-Link, a Chinese technology company that dominates the home and small-business router market in the U.S., amid mounting national security concerns. With TP-Link holding a significant 65% market share, federal authorities are investigating potential vulnerabilities in the company’s devices that could be exploited by foreign entities for cyberattacks. Read ...