Stay updated on firmware security: Explore the latest threats, updates, and protection strategies for safeguarding critical system software.
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Background for this topic.
Firmware is software stored in a device’s nonvolatile memory that initializes and controls hardware, often before an operating system or application runs. It may reside in computers, network equipment, phones, industrial controllers, storage devices, and embedded components. Firmware can be updated, so it is not necessarily permanent or read-only.
Firmware matters to security because vulnerabilities or unauthorized changes can affect a device beneath the operating system and may persist across software reinstallation. Important controls include authenticated, cryptographically signed updates; secure boot, which verifies code before execution; protection against unauthorized flashing and downgrade attacks; and a reliable recovery mechanism. Practitioners also need firmware inventories, vulnerability tracking, and a supported update process, since obscure components can remain unpatched or use insecure update mechanisms. During an investigation, verifying firmware integrity and the device’s boot chain can help distinguish an operating-system compromise from a deeper modification.
Weekly headline count for the current query.
Cybersecurity researchers have discovered 11 old, Microsoft-signed, Unified Extensible Firmware Interface (UEFI) applications that could be abused to bypass Secure Boot on most systems using the modern firmware standard
Six vulnerabilities in the widely used U-Boot bootloader have been discovered that could allow attackers to execute malicious code during device boot, potentially enabling stealthy firmware attacks that compromise security protections and install persistent malware. [...]
Researchers at firmware security firm Binarly have found six new flaws in U-Boot, the small program that starts up hardware as varied as home routers, smart cameras, and the management chips inside data-center servers
Unauthenticated Flaw Allows Full Router, Network TakeoverA hidden backdoor, disclosed by CERT/CC and found in multiple firmware versions made by Chinese manufacturer Tenda, bypasses authentication and could grant attackers administrative access. Researchers are reporting exploitation and an Nmap script is making vulnerable devices easier to identify.
Unauthenticated Flaw Allows Full Router, Network TakeoverA hidden backdoor, disclosed by CERT/CC and found in multiple firmware versions made by Chinese manufacturer Tenda, bypasses authentication and could grant attackers administrative access. Researchers are reporting exploitation and an Nmap script is making vulnerable devices easier to identify.
A hidden authentication backdoor has been found in multiple Tenda router firmware versions, potentially allowing an attacker to gain administrative access to the device's web management panel. [...]
CERT/CC warns an unpatched backdoor in several Tenda routers lets attackers bypass login and gain full admin access with a hidden password. CERT/CC published an alert documenting an undocumented authentication backdoor in multiple Tenda firmware versions, tracked as CVE-2026-11405. The flaw gives anyone who knows the right password full administrative access to the device’s web […]
Several versions of firmware released by Chinese network device manufacturer Tenda have been found to embed an undocumented authentication backdoor that enables administrative access to the devices' web management interfaces, the CERT Coordination Center (CERT/CC) warned Monday
Flipper Devices says development of the Flipper Zero firmware will continue, albeit with a smaller internal team and greater reliance on community contributions. [...]
Security firm runZero has disclosed seven vulnerabilities in FatFs, a small filesystem library that lets a device read and write the FAT and exFAT formats used on USB drives and SD cards
A new variant of the Gafgyt botnet called C0XMO is targeting DD-WRT router firmware and can move to other device types with various CPU architectures. [...]
Google has announced the integration of a Rust-based Domain Name System (DNS) parser into the modem firmware as part of its ongoing efforts to beef up the security of Pixel devices and push memory-safe code at a more foundational level
TP-Link has patched several vulnerabilities in its Archer NX router series, including a critical-severity flaw that may allow attackers to bypass authentication and upload new firmware. [...]
Internet-Connected Remote Access Tools Operate at UEFI LevelA flood of lost-cost devices for remote IP control of servers or human-machine interfaces has roused a concomitant wave of security warnings about their security defects. Firmware security company Eclypsium probed devices made by four KVM vendors, discovering nine vulnerabilities.
Texas sued networking giant TP-Link Systems, accusing the company of deceptively marketing its routers as secure while allowing Chinese state-backed hackers to exploit firmware vulnerabilities and access users' devices. [...]
State disputes the company's claim that its routers are made in Vietnam TP-Link is facing legal action from the state of Texas for allegedly misleading consumers with "Made in Vietnam" claims despite China-dominated manufacturing and supply chains, and for marketing its devices as secure despite reported firmware vulnerabilities exploited by Chinese state-sponsored actors.…
A new Android backdoor that's embedded deep into the device firmware can silently harvest data and remotely control its behavior, according to new findings from Kaspersky
A newly discovered and sophisticated Android malware called Keenadu has been found embedded in firmware from multiple device brands, enabling it to compromise all installed applications and gain unrestricted control over infected devices. [...]
Mitigation: SSO Access Restricted After Attackers Compromised Fully Patched DevicesNetwork security giant Fortinet locked out cloud customers from its single sign-on service until they update device firmware with a patch against active attacks exploiting an improper access control zero day. Only Fortinet devices running the latest, patched firmware versions can use Fortinet SSO.
Fortinet has confirmed a new, actively exploited critical FortiCloud single sign-on (SSO) authentication bypass vulnerability, tracked as CVE-2026-24858, and says it has mitigated the zero-day attacks by blocking FortiCloud SSO connections from devices running vulnerable firmware versions. [...]