Microsoft Exchange
New Microsoft Exchange exploit chain lets ransomware attackers in (CVE-2022-41080)
Ransomware-wielding attackers are using a new exploit chain that includes one of the ProxyNotShell vulnerabilities (CVE-2022-41082) to achieve remote code execution on …
Rackspace Hosted Exchange outage was caused by ransomware
Rackspace has finally confirmed the cause of the ongoing outage of its Hosted Exchange service: it’s ransomware. “As you know, on Friday, December 2nd, 2022, we …
Rackspace Hosted Exchange service outage caused by security incident
Cloud computing company Rackspace has suffered a security breach that has resulted in a still ongoing outage of their Hosted Exchange environment. “In order to best …
Microsoft fixes many zero-days under attack
November 2022 Patch Tuesday is here, with fixes for many vulnerabilities actively exploited in the wild, including CVE-2022-41091, a Windows Mark of the Web bypass flaw, and …
October 2022 Patch Tuesday forecast: Looking for treats, not more tricks
We’ve entered the final quarter of 2022 with a favorite holiday for many – Halloween, at the end of the month. Unfortunately, Microsoft has continued to play a few tricks on …
MS Exchange zero-days: The calm before the storm?
CVE-2022-41040 and CVE-2022-41082, the two exploited MS Exchange zero-days that still have no official fix, have been added to CISA’s Known Exploited Vulnerabilities …
Two Microsoft Exchange zero-days exploited by attackers (CVE-2022-41040, CVE-2022-41082)
Attackers are leveraging two zero-day vulnerabilities (CVE-2022-41040, CVE-2022-41082) to breach Microsoft Exchange servers. News of the attacks broke on Wednesday, when …
The 15 most exploited vulnerabilities in 2021
In 2021, threat actors aggressively exploited newly disclosed critical software vulnerabilities to hit a broad set of targets worldwide, says the latest advisory published by …
Microsoft asks bug hunters to probe on-premises Exchange, SharePoint servers
Bug hunters that discover and report high-impact security vulnerabilities in on-premises Exchange, SharePoint and Skype for Business may earn as much as $26,000 per eligible …
March 2022 Patch Tuesday: Microsoft fixes RCEs in RDP client, Exchange Server
Microsoft marks March 2022 Patch Tuesday with patches for 71 CVE-numbered vulnerabilities, including three previously unknown “critical” ones and three …
Microsoft fixes wormable RCE in Windows Server and Windows (CVE-2022-21907)
The first Patch Tuesday of 2022 is upon us, and Microsoft has delivered patches for 96 CVE-numbered vulnerabilities, including a wormable RCE flaw in Windows Server …
Microsoft vulnerabilities have grave implications for organizations of all sizes
Microsoft software products are a connective tissue of many organizations, from online documents (creating, sharing, storing), to email and calendaring, to the operating …
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