Unknown baddies are abusing yet another critical Microsoft SharePoint bug to compromise victims’ SharePoint servers, the US government warned.
CVE-2026-20963 is a critical deserialization flaw in SharePoint that allows unauthenticated attackers to remotely execute code on the server without any user interaction, and Redmond fixed the issue as part of its January Patch Tuesday. At the time, the vulnerability was neither publicly known nor exploited, according to Microsoft, which deemed exploitation “less likely.” Fast forward to Wednesday when the US Cybersecurity and Infrastructure Agency added CVE-2026-20963 to its Known Exploited Vulnerabilities (KEV) catalog, gave federal agencies just three days to issue a patch..
Read more…
Source: The Register News
Sign up for the Cyber Security Review Newsletter
The latest cyber security news and insights delivered right to your inbox
Related:
- Spear-phishing campaign compromises executives at 150+ companies
April 30, 2020
A cybercrime group operating since mid-2019 has breached the email accounts of high-ranking executives at more than 150 companies, cyber-security firm Group-IB reported today. The group, codenamed PerSwaysion, appears to have targeted the financial sector primarily, which accounted for more than half of its victims; although, victims have been recorded at companies active across other verticals ...
- Security 101: How Fileless Attacks Work and Persist in Systems
April 30, 2020
As security measures get better at identifying and blocking malware and other threats, modern adversaries are constantly crafting sophisticated techniques to evade detection. One of the most persistent evasion techniques involves fileless attacks, which do not require malicious software to break into a system. Instead of relying on executables, these threats misuse tools that are ...
- WebMonitor RAT Bundled with Zoom Installer
April 29, 2020
The coronavirus pandemic has highlighted the usefulness of communication apps for work-from-home (WFH) setups. However, like they always do, cybercriminals are expected to exploit popular trends and user behavior. We have witnessed threats against several messaging apps including Zoom. In early April, we spotted an attack leveraging Zoom installers to spread a cryptocurrency miner. We recently encountered a similar attack ...
- Academics demand answers from NHS over potential data timebomb ticking inside new UK contact-tracing app
April 29, 2020
A group of nearly 175 UK academics has criticised the NHS’s planned COVID-19 contact-tracing app for a design choice they say could endanger users by creating a centralised store of sensitive health and travel data about them. In the open letter published this afternoon, the 173 scholars called on NHSX, the state-run health service’s app-developing and ...
- Remote spring: the rise of RDP bruteforce attacks
April 29, 2020
With the spread of COVID-19, organizations worldwide have introduced remote working, which is having a direct impact on cybersecurity and the threat landscape. Alongside the higher volume of corporate traffic, the use of third-party services for data exchange, and employees working on home computers (and potentially insecure Wi-Fi networks), another headache for infosec teams is the ...
- Hiding in plain sight: PhantomLance walks into a market
April 28, 2020
In July 2019, Dr. Web reported about a backdoor trojan in Google Play, which appeared to be sophisticated and unlike common malware often uploaded for stealing victims’ money or displaying ads. So, we conducted an inquiry of our own, discovering a long-term campaign, which we dubbed “PhantomLance”, its earliest registered domain dating back to December 2015. We found ...