Critical vulnerabilities in Fortinet CVE-2025-59718, CVE-2025-59719 exploited in the wild


A recently disclosed pair of vulnerabilities affecting Fortinet devices—CVE-2025-59718 and CVE-2025-59719—are drawing urgent attention after confirmation of their active exploitation in the wild. The vulnerabilities carry a critical CVSSv3 score and allow an unauthenticated remote attacker to bypass authentication using a crafted SAML message, ultimately gaining administrative access to the device.

Current information indicates that the two CVEs have the same root cause and are differentiated by the products affected: CVE-2025-59719 specifically affects FortiWeb, while CVE-2025-59718 affects FortiOS, FortiProxy, and FortiSwitchManager. While the vulnerable FortiCloud SSO feature is disabled by default in factory settings, it is automatically enabled when a device is registered to FortiCare via the GUI, unless an administrator explicitly opts out.

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:

  • Toll fraud malware: How an Android application can drain your wallet

    June 30, 2022

    Toll fraud malware, a subcategory of billing fraud in which malicious applications subscribe users to premium services without their knowledge or consent, is one of the most prevalent types of Android malware – and it continues to evolve. Compared to other subcategories of billing fraud, which include SMS fraud and call fraud, toll fraud has unique ...

  • Countering hack-for-hire groups

    June 30, 2022

    As part of TAG’s mission to counter serious threats to Google and our users, we’ve published analysis on a range of persistent threats including government-backed attackers, commercial surveillance vendors, and serious criminal operators. Today, we’re sharing intelligence on a segment of attackers we call hack-for-hire, whose niche focuses on compromising accounts and exfiltrating data as ...

  • The SessionManager IIS backdoor

    June 30, 2022

    Following on from Kaspersky earlier Owowa discovery, Kaspersky researchers continued to hunt for more backdoors potentially set up as malicious modules within IIS, a popular web server edited by Microsoft. And they didn’t come back empty-handed… In 2021, Kaspersky noticed a trend among several threat actors for deploying a backdoor within IIS after exploiting one of ...

  • Hacking the Crypto-Monetized Web

    June 30, 2022

    The web is several decades old. But it largely still relies on the same method of monetization as it always has: advertising. However, things are changing thanks to the power of cryptocurrency and blockchain. It’s what Trend Micro has coined the “crypto-monetized web” (CMW). But where there’s money to be made and users to be ...

  • Burrowing your way into VPNs, Proxies, and Tunnels

    June 29, 2022

    When considering an attack lifecycle from an adversarial perspective, the adversary has a few options on how to proceed at each step. One of questions that needs to be answered is whether the adversary will use publicly known malware (i.e. BEACON), custom built-from-the-ground-up malware (i.e. HAMMERTOSS), or legitimate software and services (i.e. SoftEther Virtual Private ...

  • ZuoRAT is targeting routers to break into networks

    June 29, 2022

    A newly discovered remote access trojan (RAT) called ZuoRAT has targeted remote workers by exploiting flaws in often unpatched small office/home office (SOHO) routers. Researchers at Lumen’s Black Lotus Labs threat intelligence unit report that ZuoRAT is part of a highly targeted, sophisticated campaign that has been targeting workers across North America and Europe for nearly ...