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New AyySSHush botnet compromised over 9,000 ASUS routers, adding a persistent SSH backdoor.

Security Affairs

GreyNoisediscovered the AyySSHush botnet has hacked over 9,000 ASUS routers, adding a persistent SSH backdoor. The threat intelligence firm uncovered a stealth campaign on March 18, 2025, where attackers gained persistent access to thousands of internet-exposed ASUS routers. ” states GreyNoise. . ” states GreyNoise.

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MY TAKE: Why locking down ‘firmware’ has now become the next big cybersecurity challenge

The Last Watchdog

Locking down firmware. These are the carriers that provide Internet access to rural areas all across America. Firmware is the coding that’s embedded below the software layer on all computing devices, ranging from printers to hard drives and motherboards to routers and switches. telecoms by Chinese tech giant Huawei.

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Hacking Wireless Bicycle Shifters

Schneier on Security

This is yet another insecure Internet-of-things story , this one about wireless gear shifters for bicycles. These gear shifters are used in big-money professional bicycle races like the Tour de France, which provides an incentive to actually implement this attack. Research paper. Another news story. Slashdot thread.

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SonicWall warns of an exploitable SonicOS vulnerability

Security Affairs

” SonicWall is urging customers to upgrade the SonicOS firmware of their firewalls to patch an authentication bypass vulnerability tracked as CVE-2024-53704 (CVSS score of 8.2). The same firmware upgrade contains mitigations for additional, less-critical vulnerabilities.” hardware firewalls: SonicOS 6.5.5.1-6n

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ASUS routers with AiCloud vulnerable to auth bypass exploit

Security Affairs

. “An improper authentication control vulnerability exists in certain ASUS router firmware series. “We have released new firmware update for 3.0.0.4_382, 3.0.0.4_386, 3.0.0.4_388, 3.0.0.6_102 series.” Asus also urges users to update the routers firmware via the ASUS support page when available.

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PTZOptics cameras zero-days actively exploited in the wild

Security Affairs

Affected devices use VHD PTZ camera firmware < 6.3.40 “Organizations using VHD PTZ camera firmware < 6.3.40 The manufacturer released firmware updates addressing these flaws.” used in PTZOptics, Multicam Systems SAS, and SMTAV Corporation devices based on Hisilicon Hi3516A V600 SoC V60, V61, and V63.”

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SHARED INTEL: How ‘memory attacks’ and ‘firmware spoilage’ circumvent perimeter defenses

The Last Watchdog

What does Chinese tech giant Huawei have in common with the precocious kid next door who knows how to hack his favorite video game? Related: Ransomware remains a scourge The former has been accused of placing hidden backdoors in the firmware of equipment distributed to smaller telecom companies all across the U.S.

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