Back in October 2022, Kaspersky GReAT was looking into a peculiar advertisement on a hacking forum. A cybercriminal had been advertising a UEFI bootkit, dubbed BlackLotus, that could bypass Secure Boot, for $5,000. Given the low price for such powerful capabilities, the cybersecurity community initially took this advertisement with a grain of salt. As no BlackLotus samples were found in the wild, no one could at the time verify the claims made in the forum post.
However, about half a year later, in March 2023, ESET confirmed that the BlackLotus advertisement was genuine. The researchers tracked down samples of this bootkit and confirmed that it can indeed bypass Secure Boot through a vulnerability called Baton Drop (CVE-2022-21894). As this vulnerability was still exploitable in 2023, Microsoft had to release multiple security updates to address it.
Read more…
Source: Kaspersky
Sign up for the Cyber Security Review Newsletter
The latest cyber security news and insights delivered right to your inbox
Related:
- Active Exploitation Reported for CVE-2025-11001 in 7-Zip
November 18, 2025
Active exploitation of CVE-2025-11001 has been observed in the wild. A security researcher has also publicly released a proof-of-concept (PoC) exploit for CVE-2025-11001. The PoC allows attackers to abuse symbolic-link handling to write files outside of the intended extraction folder, which in some scenarios, can enable arbitrary code execution. Read more… Source: NHS Digital Sign up for the Cyber ...
- Microsoft says Azure was hit with a massive DDoS attack launched from over 500,000 IP addresses
November 18, 2025
Microsoft has said it successfully mitigated, “the largest DDoS attack ever observed in the cloud” after cybercriminals running the Aisuru botnet targeted a single endpoint, located in Australia. The attack was a sight to behold: more than 500,000 source IPs, across various regions, descended upon the endpoint, delivering a multi-vector Distributed Denial of Service (DDoS) attack ...
- Google Releases Security Update for Chrome
November 18, 2025
Google has released security updates for Chrome to address two high severity vulnerabilities in the V8 JavaScript engine. CVE-2025-13223 – Type Confusion in V8 – High severity – Google is aware an exploit exists in the wild. CVE-2025-13224 – Type Confusion in V8 – High severity Read more… Source: NHS Digital Sign up for the Cyber Security Review Newsletter The latest ...
- Digital Doppelgangers: Anatomy of Evolving Impersonation Campaigns Distributing Gh0st RAT
November 14, 2025
Palo Alto Unit 42 researchers have identified two interconnected malware campaigns active throughout 2025, using large-scale brand impersonation to deliver Gh0st remote access Trojan (RAT) variants to Chinese-speaking users. From the first campaign to the second, the adversary advanced from simple droppers to complex, multi-stage infection chains that misuse legitimate, signed software to bypass modern defenses. ...
- Fortinet Releases Security Advisory for Relative Path Traversal Vulnerability Affecting FortiWeb Products
November 14, 2025
CISA is aware of exploitation of a newly disclosed vulnerability, CVE-2025-64446, in Fortinet FortiWeb, a web application firewall. This vulnerability affects the following FortiWeb versions:1 8.0.0 through 8.0.1 7.6.0 through 7.6.4 7.4.0 through 7.4.9 7.2.0 through 7.2.11 7.0.0 through 7.0.11 CVE-2025-64446 is a relative path traversal vulnerability CWE-23: Relative Path Traversal that may allow an unauthenticated ...
- Threat Landscape of the Building and Construction Sector Part Two: Ransomware
November 14, 2025
The construction sector is increasingly vulnerable to ransomware attacks in 2025 due to its complex ecosystem and distinctive operational challenges. Construction projects typically involve a web of contractors, subcontractors, suppliers, and consultants, collaborating through shared digital platforms and exchanging sensitive documents such as blueprints, contracts, and timelines. While essential for project delivery, this interconnectedness creates numerous ...