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Tp-Link AX53 v1.0 tmpServer opcode 0x429 stack-based buffer overflow vulnerability

CVE-2025-62405 A stack-based buffer overflow vulnerability exists in the tmpServer SmartNetSetClientList() functionality of Tp-Link AX53 v1.0 1.3.1 Build 20241120 rel.54901(5553). A specially crafted set of network packets can lead to arbitrary code execution. An attacker can send packets to trigger this vulnerability. The versions below were either tested or verified […]

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RIP RegPwn

13th March 2026 As part of MDSec’s R&D work, we often discover vulnerabilities and develop exploits to support our red team engagements. When researching widely used software, it is often only a matter of time before the same vulnerability is discovered by other researchers and reported to the vendor. Two […]

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Findings Gadgets Like it’s 2026

# Findings Gadgets Like it’s 2026 ## Introduction Java deserialization vulnerabilities have been of interest to me for nearly a decade. In 2016, my team published a blog post titled “What Do WebLogic, WebSphere, JBoss, Jenkins, OpenNMS, and Your Application Have in Common? This Vulnerability.” which kicked off a firestorm […]

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DirectX, OpenFOAM, Libbiosig vulnerabilities

Cisco Talos’ Vulnerability Discovery & Research team recently disclosed vulnerabilities in the BioSig Project Libbiosig library and OpenCFD OpenFOAM, as well as an unpatched vulnerability in Microsoft DirectX. The vulnerabilities mentioned in this blog post have been patched by their respective vendors, all in adherence to Cisco’s third-party vulnerability disclosure […]

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Microsoft DirectX End-User Runtime Web Installer Privilege Escalation Vulnerability

CVE-2025-68623 A local privilege escalation vulnerability exists during the installation of Microsoft DirectX End-User Runtime. A low-privilege user can replace an executable file during the installation process, which may result in unintended elevation of privileges. The versions below were either tested or verified to be vulnerable by Talos or confirmed […]

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Iranian MOIS Actors & the Cyber Crime Connection

For years, Iranian intelligence services have operated through deniable criminal intermediaries in the physical world. A similar pattern is now becoming visible in cyber space, where state objectives are increasingly pursued through criminal tools, services, and operational models. Notably, this dynamic appears with growing frequency in activity associated with actors […]

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Attack arithmetic: how an integer overflow in PostgreSQL libpq leads to denial of service

Databases serve as the foundation of the digital world, organizing and storing critical information: from financial transactions and medical records to website content. However, like any complex software product, they are not immune to flaws, and discovered vulnerabilities can turn this repository into a prime target for attacks. This applies […]

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