#zero_day

Cybersecurity today moves at the pace of global politics. A single breach can ripple across supply chains, turn a software flaw into leverage, or shift who holds the upper hand. For leaders, this means defense isn’t just a matter of firewalls and patches—it’s about strategy. The strongest organizations aren’t the ones with the most tools, but the ones that see how cyber risks connect to business

A list of topics we covered in the week of August 18 to August 24 of 2025

Apple fixes CVE-2025-43300, a flaw letting hackers hijack devices via malicious images. Users urged to update iPhone, iPad,…

CVE-2025-43300 is the latest zero-day bug used in cyberattacks against "targeted individuals," which could signify spyware or nation-state hacking.

Cybersecurity researchers are calling attention to malicious activity orchestrated by a China-nexus cyber espionage group known as Murky Panda that involves abusing trusted relationships in the cloud to breach enterprise networks. "The adversary has also shown considerable ability to quickly weaponize N-day and zero-day vulnerabilities and frequently achieves initial access to their targets by

Amy (ahem, Special Agent Dale Cooper) shares lessons from their trip to the Olympic Peninsula and cybersecurity travel tips for your last-minute adventures.

Apple has released security updates to patch a zero-day vulnerability tracked as CVE-2025-43300 for all platforms

Apple has released security updates to address a security flaw impacting iOS, iPadOS, and macOS that it said has come under active exploitation in the wild. The zero-day out-of-bounds write vulnerability, tracked as CVE-2025-43300, resides in the ImageIO framework that could result in memory corruption when processing a malicious image. "Apple is aware of a report that this issue may have been

## Technical Details Below is a technical explanation of a newly discovered vulnerability in HTTP/2, which we refer to as “MadeYouReset.” ### MadeYouReset Vulnerability Summary The MadeYouReset DDoS vulnerability is a logical vulnerability in the HTTP/2 protocol, that uses malformed HTTP/2 control frames in order to break the max concurrent streams limit - which results in resource exhaustion and distributed denial of service. ### Mechanism The vulnerability uses malformed HTTP/2 control frames, or malformed flow, in order to make the server reset streams created by the client (using the RST_STREAM frame). The vulnerability could be triggered by several primitives, defined by the RFC of HTTP/2 (RFC 9113). The Primitives are: 1. WINDOW_UPDATE frame with an increment of 0 or an increment that makes the window exceed 2^31 - 1. (section 6.9 + 6.9.1) 2. HEADERS or DATA frames sent on a half-closed (remote) stream (which was closed using the END_STREAM flag). (note that for some implemen...

Frankfurt am Main, Germany, 20th August 2025, CyberNewsWire