Just as the experts predicted, cybercriminals are now actively exploiting the critical severity vulnerability in React Server Components (RSC) that was discovered late last week. To make matters worse, the crooks observed abusing the bug seem to be working for the Chinese government.
Late last week, the React team published a security advisory detailing a pre-authentication bug in multiple versions of multiple packs, affecting RCS. The versions that are affected include 19.0, 19.1.0, 19.1.1, and 19.2.0, react-server-dom-webpack, react-server-dom-parcel, and react-server-dom-turbopack. ).
Read more…
Source: TechRadar News
Sign up for the Cyber Security Review Newsletter
The latest cyber security news and insights delivered right to your inbox
Related:
- Disrupting active exploitation of on-premises SharePoint vulnerabilities
July 23, 2025
Expanded analysis and threat intelligence from Microsoft continued monitoring of exploitation activity by Storm-2603 leading to the deployment of Warlock ransomware. Based on new information, we have updated the Attribution, Indicators of compromise, extended and clarified Mitigation and protection guidance (including raising Step 6: Restart IIS for emphasis), Detections, and Hunting sections. Read more… Source: Microsoft Sign up for ...
- Hundreds of organizations breached by SharePoint mass-hacks
July 23, 2025
Security researchers say hackers have breached at least 400 organizations by exploiting a zero-day vulnerability in Microsoft SharePoint, signaling a sharp rise in the number of detected compromises since the bug was discovered last week. Eye Security, a Dutch cybersecurity firm that first identified the vulnerability in SharePoint, a popular server software that companies use to ...
- Microsoft releases urgent SharePoint security flaw patches
July 21, 2025
Microsoft has released an urgent patch to fix a zero-day vulnerability affecting on-premises SharePoint servers. The vulnerability is already being exploited in the wild, which is why users are urged to apply the patch immediately and secure their assets. Three Microsoft products were said to be affected: SharePoint Server Subscription Edition, SharePoint Server 2019, and SharePoint ...
- CVE-2025-54309: CrushFTP Zero-Day Exploited in the Wild
July 18, 2025
On Friday, July 18, 2025, managed file transfer vendor CrushFTP released information to a private mailing list on a new critical vulnerability, tracked as CVE-2025-54309, affecting versions below 10.8.5 and 11.3.4_23 across all platforms. According to the public-facing vendor advisory, this vulnerability in the CrushFTP managed file transfer software web interface is being exploited in the ...
- Google Releases Security Update for Chrome
July 18, 2025
Google has released version 138.0.7204.157/.158 for Chrome for Windows and Mac and 138.0.7204.157 for Chrome for Linux, which will roll out over the coming days/weeks. The updates address three high severity vulnerabilities, including CVE-2025-6558, which has an exploit in the wild. CVE-2025-6558: Incorrect validation of untrusted input in ANGLE and GPU vulnerability – CVSSv3 score: 8.8 Read ...
- GhostContainer backdoor: Malware compromising Exchange servers of high-value organizations in Asia
July 17, 2025
In a recent incident response (IR) case, Kaspersky researchers discovered highly customized malware targeting Exchange infrastructure within government environments. Analysis of detection logs and clues within the sample suggests that the Exchange server was likely compromised via a known N-day vulnerability. Kaspersky in-depth analysis of the malware revealed a sophisticated, multi-functional backdoor that can be dynamically ...