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:
- SonicWall zero-day exploited in the wild
February 1, 2021
Cyber-security firm the NCC Group said on Sunday that it detected active exploitation attempts against a zero-day vulnerability in SonicWall networking devices. Details about the nature of the vulnerability have not been made public to prevent other threat actors from studying it and launching their own attacks. “We’ve seen it used by a single threat actor earlier ...
- UK Research and Innovation (UKRI) suffers ransomware attack
January 30, 2021
The UK Research and Innovation (UKRI) is dealing with a ransomware incident that encrypted data and impacted two of its services, one offering information to subscribers and the platform for peer review of various parts of the agency. UKRI is a public body of the Government of the United Kingdom, tasked with investing in science and ...
- Chopper ASPX web shell used in targeted attack
January 29, 2021
Based on Trend Micro researchers investigation, the Chopper web shell is dropped via a system token, potentially via a Microsoft Exchange Server vulnerability. One notable vulnerability in the Microsoft Exchange Server is CVE-2020-0688, a remote code execution bug. Microsoft issued a patch for this vulnerability in February 2020. However, the malicious actors behind this attack ...
- Fonix ransomware shuts down and releases master decryption key
January 29, 2021
The Fonix Ransomware operators have shut down their operation and released the master decryption allowing victims to recover their files for free. Fonix Ransomware, also known as Xinof and FonixCrypter, began operating in June 2020 and has been steadily encrypting victims since. The ransomware operation was not as widely active as others, such as REvil, Netwalker, ...
- Post Office Phishing Hits Credit Card Users in 26 Countries
January 28, 2021
Phishing remains a popular and effective tactic that malicious actors continue to deploy against internet users. The current retail climate brought about by the global health crisis has only worsened the problem. Many countries across the globe have seen a surge in online shopping, and malicious actors are quick to deploy campaigns that take advantage ...
- Hezbollah’s cyber unit hacked into telecoms and ISPs
January 28, 2021
A Hezbollah-affiliated threat actor known as Lebanese Cedar has been linked to intrusions at telco operators and internet service providers in the US, the UK, Israel, Egypt, Saudi Arabia, Lebanon, Jordan, the Palestinian Authority, and the UAE. The year-long hacking campaign started in early 2020 and was discovered by Israeli cyber-security firm Clearsky. In a report published ...