Shadowserver Detects Over 6,000 Internet-Exposed SmarterMail Servers Vulnerable to a Critical Flaw

56/69 Thursday, January 29, 2026 Shadowserver has reported the detection of more than 6,000 SmarterMail servers that are exposed to the internet and are likely affected by a critical authentication bypass vulnerability, tracked as CVE-2026-23760. The vulnerability was disclosed by cybersecurity firm watchTowr on January 8, 2026, and was patched by SmarterTools on January 15, […]

ThaiCERT

January 29, 2026

WinRAR Vulnerability CVE-2025-8088 Continues to Be Actively Exploited by Hackers

55/69 Thursday, January 29, 2026 Cybersecurity experts are warning that a high-severity vulnerability in WinRAR, tracked as CVE-2025-8088, continues to be actively exploited by a wide range of threat actors, including state-sponsored groups and financially motivated cybercriminals. The flaw is a path traversal vulnerability that abuses Alternate Data Streams (ADS) to write malicious files to […]

ThaiCERT

January 29, 2026

Amatera Stealer Malware Spreads via Fake CAPTCHA to Steal Passwords and Credit Card Data

54/69 Wednesday, January 28, 2026 Cybersecurity researchers from Blackpoint Cyber have identified an attack campaign that uses fake CAPTCHA prompts to install the Amatera Stealer infostealer malware. Instead of asking users to select images as in legitimate CAPTCHA challenges, the malicious website instructs victims to press Windows Key + R, paste a command, and press […]

ThaiCERT

January 28, 2026

Microsoft Releases Emergency Update to Fix Actively Exploited Zero-Day Vulnerability in Microsoft Office

53/69 Wednesday, January 28, 2026 Microsoft has released an out-of-band security update to address an actively exploited zero-day vulnerability in Microsoft Office, tracked as CVE-2026-21509. The vulnerability affects multiple Office versions, including Office 2016, Office 2019, Office LTSC 2021, Office LTSC 2024, and Microsoft 365 Apps for Enterprise. According to Microsoft, the flaw is classified […]

ThaiCERT

January 28, 2026

Cloudflare Explains 12 Gbps Traffic Drop Caused by BGP Leak Due to Configuration Error

52/69 Wednesday, January 28, 2026 Cloudflare has released details about a BGP route leak that occurred on January 22, impacting IPv6 traffic for approximately 25 minutes. The incident caused significant network congestion and packet loss, with traffic drops reaching up to 12 Gbps. The impact was not limited to Cloudflare customers but also affected interconnected […]

ThaiCERT

January 28, 2026

Stanley MaaS Toolkit Creates Malicious Chrome Extensions That Overlay Phishing Pages Without Changing the URL

51/69 Tuesday, January 27, 2026 Researchers from Varonis have identified a new Malware-as-a-Service (MaaS) toolkit named Stanley, which is being advertised for sale on cybercrime forums for approximately USD 2,000–6,000. A key feature of Stanley is its ability to create malicious Chrome extensions that can reportedly pass Google’s review process and be published on the […]

ThaiCERT

January 27, 2026

Nike Investigates Potential Data Breach After WorldLeaks Claims Data Theft

50/69 Tuesday, January 27, 2026 Nike has confirmed that it is investigating a potential cybersecurity incident after the cybercriminal group WorldLeaks claimed it had accessed and stolen data from the company’s systems. Nike stated that it has launched an investigation to assess the impact and verify the legitimacy of the claims, emphasizing that protecting consumer […]

ThaiCERT

January 27, 2026

Warning: Konni Hacker Group Escalates Attacks, Uses AI to Develop Malware Targeting Developers

49/69 Tuesday, January 27, 2026 Check Point Research has reported the discovery of a new wave of cyberattacks by the Konni hacking group (also known as Earth Imp / Opal Sleet), which has expanded its targeting beyond its traditional focus on South Korea and Russia to software developers and engineering teams in the blockchain sector […]

ThaiCERT

January 27, 2026

CISA Adds VMware vCenter Vulnerability (CVE-2024-37079) to KEV Catalog After Active Exploitation

48/69 Monday, January 26, 2026 The U.S. Cybersecurity and Infrastructure Security Agency (CISA) has added a critical vulnerability in VMware vCenter Server, tracked as CVE-2024-37079 (CVSS score 9.8), to its Known Exploited Vulnerabilities (KEV) Catalog after confirming real-world exploitation. The vulnerability is caused by a heap-overflow flaw in the DCERPC protocol handling, which allows network-accessible […]

ThaiCERT

January 26, 2026

New Osiris Ransomware Variant Discovered, Uses BYOVD Technique to Disable Security Tools

47/69 Monday, January 26, 2026 Researchers from Symantec and VMware Carbon Black have identified a new ransomware strain named Osiris, which was used in attacks in November 2025 against a major food franchise operator in Southeast Asia. The attackers leveraged a Bring Your Own Vulnerable Driver (BYOVD) technique using a malicious driver known as POORTRY […]

ThaiCERT

January 26, 2026
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