Yasna brings together recent headlines from selected sources and makes them easier to sort with tags, filters, and search.
Search across headline titles and summaries.
Weekly headline count for the current query.
CVE-2026-42897 stems from a cross-site scripting (XSS) vulnerability and can allow an attacker to compromise Outlook Web Access (OWA) mailboxes.
Dirty Frag is a newly disclosed Linux local privilege escalation vulnerability affecting kernel networking and memory-fragment handling components including esp4, esp6, and rxrpc. The vulnerability enables reliable escalation from an unprivileged user to root and may be leveraged after initial compromise through SSH access, web shells, containers, or low-privileged accounts. Microsoft Defender is actively monitoring limited in-the-wild activity and provides detection coverage for exploitation attempts. The post Active attack: Dirty Frag Linux vulnerability expands post-compromise risk appeared first on Microsoft Security Blog.
Huntress is warning that threat actors are exploiting three recently disclosed security flaws in Microsoft Defender to gain elevated privileges in compromised systems
Hacked Infrastructure Delivered Chinese Nation-State Group's Backdoor, Experts WarnThe widely used, open source text-editing software Notepad++ for Windows said attackers exploited a vulnerability to redirect some users to sites that pushed a backdoor onto their system. Security experts have tied the attack to a broader campaign perpetrated by Chinese nation-state actors.
Chinese Hackers Target European Diplomats with LNK File FlawChinese nation-state hackers are exploiting a Windows vulnerability to hack European diplomatic outposts, say security researchers - but operating system giant Microsoft says the flaw doesn't merit a patch. Hackers used a flaw already compromised by North Korea and Russia.
The threat actor known as Silver Fox has been attributed to abuse of a previously unknown vulnerable driver associated with WatchDog Anti-malware as part of a Bring Your Own Vulnerable Driver (BYOVD) attack aimed at disarming security solutions installed on compromised hosts
A critical vulnerability in Docker Desktop for Windows and macOS allows compromising the host by running a malicious container, even if the Enhanced Container Isolation (ECI) protection is active. [...]
Philippe Laulheret of Cisco Talos on Vulnerabilities in ControlVault FirmwareSecurity flaws in Dell's ControlVault firmware allowed attackers to run code on the chip, extract stored secrets and alter its behavior. By chaining these exploits, they could send malicious data to Windows components, said Philippe Laulheret, senior vulnerability researcher at Cisco Talos.
Over 29,000 Exchange servers exposed online remain unpatched against a high-severity vulnerability that can let attackers move laterally in Microsoft cloud environments, potentially leading to complete domain compromise. [...]
A total of 396 compromised Microsoft SharePoint systems have been identified globally, affecting 145 organizations across 41 countries in the wake of the ToolShell zero-day vulnerability
Microsoft said Chinese actor Storm-2603 is deploying Warlock ransomware following the exploitation of vulnerabilities in on-prem SharePoint systems
US DOE among breached government agencies More than 400 organizations have been compromised in the Microsoft SharePoint attack, according to Eye Security, which initially sounded the alarm on the mass exploitation last Friday, even before Redmond confirmed the critical vulnerabilities.…
On Sunday, July 20, Microsoft Corp. issued an emergency security update for a vulnerability in SharePoint Server that is actively being exploited to compromise vulnerable organizations. The patch comes amid reports that malicious hackers have used the Sharepoint flaw to breach U.S. federal and state agencies, universities, and energy companies.
Malicious actors already have already pounced on the zero-day vulnerability, tracked as CVE-2025-53770, to compromise US government agencies and other businesses in ongoing and widespread attacks.
Microsoft has released emergency SharePoint security updates for two zero-day vulnerabilities tracked as CVE-2025-53770 and CVE-2025-53771 that have compromised services worldwide in "ToolShell" attacks. [...]
A critical zero-day vulnerability in Microsoft SharePoint, tracked as CVE-2025-53770, has been actively exploited since at least July 18th, with no patch available and at least 85 servers already compromised worldwide. [...]
Cybersecurity researchers have flagged a supply chain attack targeting a Microsoft Visual Studio Code (VS Code) extension called Ethcode that has been installed a little over 6,000 times
UEFI Vulnerability Threatens Systems with Silent CompromiseHackers could circumvent the protections of Secure Boot by silently disabling it through an attack that potentially affects a wide swath of Windows laptops and servers. Microsoft issued a patch this month and hackers would already need admin access and physical access to a target machine.
A privilege escalation flaw has been demonstrated in Windows Server 2025 that makes it possible for attackers to compromise any user in Active Directory (AD)
Attackers Could Exploit Flaw to Relay Credentials, Compromise SystemsA critical vulnerability in Open Policy Agent could expose NTLM credentials from Windows systems, potentially affecting millions of users. Researchers at Tenable warn that attackers could exploit the flaw through social engineering. Users must update to version v0.68.0 immediately to mitigate risks.