A new report from the Acronis Threat Research Unit has uncovered a vulnerability in Microsoft Exchange Online settings that could enable email spoofing attacks.
This issue primarily affects users with a hybrid configuration of on-premises Exchange and Exchange Online, and those utilizing third-party email security solutions. In July 2023, Microsoft introduced a major change in how it handles DMARC (Domain-based Message Authentication, Reporting, and Conformance) within Microsoft Exchange. This update was intended to bolster security by enhancing how email servers verify incoming emails’ legitimacy. Unfortunately, despite clear guidance from Microsoft, a considerable number of users have yet to implement these security measures.
Read more…
Source: TechRadar News
Related:
- Android chipmaker Qualcomm fixes three zero-days exploited by hackers
June 3, 2025
Chipmaker giant Qualcomm released patches on Monday fixing a series of vulnerabilities in dozens of chips, including three zero-days that the company said may be in use as part of hacking campaigns. Qualcomm cited Google’s Threat Analysis Group, or TAG, which investigates government-backed cyberattacks, saying the three flaws “may be under limited, targeted exploitation.” According to ...
- Google Releases Security Updates for Chrome
June 3, 2025
Google has released version 137.0.7151.68/.69 for Chrome for Windows and Mac and 137.0.7151.68 for Chrome for Linux which will roll out over the coming days/weeks. The updates address two high severity vulnerabilities in the V8 JavaScript engine. CVE-2025-5419 has a CVSSv3 score of 8.8 and is an “out of bounds read and write” vulnerability in V8 ...
- Key Linux systems may have security flaws which allow password theft
June 2, 2025
Cybersecurity researchers from Qualys have discovered two information disclosure vulnerabilities plaguing different Linux distros. The flaws, both of which are race condition bugs, allow threat actors to gain access to sensitive information. The first one is found in Ubuntu’s core dump-handler, Apport, and is tracked as CVE-2025-5054. The second one is found in the default core-dump ...
- Vanta bug exposed customers’ data to other customers
June 2, 2025
Compliance company Vanta has confirmed that a bug exposed the private data of some of its customers to other Vanta customers. The company told TechCrunch that the data exposure was a result of a product code change and not caused by an intrusion. Vanta, which helps corporate customers automate their security and compliance processes, said it ...
- Exploits and vulnerabilities in Q1 2025
May 30, 2025
The first quarter of 2025, like previous ones, demonstrates a significant number of newly documented vulnerabilities. The trend largely mirrors previous years, so we will focus on new data that can be collected for the most popular platforms. This report examines the characteristics of vulnerabilities in the Linux operating system and Microsoft software, specifically the Windows ...
- Santesoft Releases Security Update for Sante DICOM Viewer Pro
May 30, 2025
The US Cybersecurity and Infrastructure Security Agency (CISA) has released an Industrial Control Systems (ICS) Medical Advisory for a vulnerability in Santesoft Sante DICOM Viewer Pro. Sante DICOM Viewer Pro is an application for viewing, processing, and editing DICOM-format medical images. CVE-2025-5307 has a CVSSv4 score of 8.4 and is an ‘out-of-bounds read’ vulnerability, which means ...