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CategoryAll AI research 10 AI safety & security 10 Exploit / PoC 8 Research 7 Tools 6 Industry 5 AI industry 4 Phishing & fraud 4 Threat actor 3 Vulnerability 3 Policy & legal 2 AI tools & infra 1 AI policy 1

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Chinese Hackers Exploit Critical Tencent Software Flaw for One-Click Code Execution

China-linked UNC3569 actively exploited critical Sogou Input Method flaw CVE-2026-51990 for one-click system-level code execution, deploying the GrayRabbit backdoor.

Gen Threat Labs reports that China-linked threat actor UNC3569, possibly tied to contractor i-SOON, exploited critical CVE-2026-51990 in Tencent's Sogou Input Method, a Windows IME used by hundreds of millions, via crafted sgbiz URLs. The chain combines unvalidated command-line argument injection, unrestricted URL navigation, and an un-sandboxed Chromium 80 engine missing roughly six years of security patches. The exploit gives system-level code execution and was used to deploy the GrayRabbit backdoor, which provides a reverse shell, plugin loading, file upload to C2, and system info collection, and has appeared in UNC3569 intrusions since at least 2021. Tencent patched the issue in version 16.3.0.3498 via automatic update, but the outdated Chromium configuration reportedly remained unchanged as of September 10.

SecurityWeekSep 14, 11:51 UTC · 2d agoExploit / PoC in the wild 2 sources CVE-2026-519901· 1 read

Android 0-day Vulnerability on Google Pixel Devices Actively Exploited in Attacks

Google patched CVE-2026-58704, an actively exploited Android zero-day allowing proximal privilege escalation via the Pixel cellular modem, urging the 2026-09-05 patch.

Google confirmed CVE-2026-58704, a high-severity elevation-of-privilege flaw in the Pixel cellular modem, is being exploited in limited, targeted attacks and shipped emergency fixes in the September 2026 Pixel Update Bulletin. The low-complexity bug requires no user interaction and enables proximal/adjacent privilege escalation with no additional execution privileges, phrasing Google has historically used for spyware-vendor and state-aligned zero-days. The Pixel bulletin patches 110 flaws including 12 critical RCEs, while the broader September Android update addressed roughly 180 vulnerabilities, including Wi-Fi memory-corruption bug CVE-2026-28662.

Cyber Security Newsupdated 14:47 UTC · 2h agofirst 09:40 UTC · 7h agoExploit / PoC in the wild 7 sources CVE-2026-58704 CVE-2026-28662

Hackers Exploit Critical Cisco Secure Email Gateway Flaw to Execute Commands as Root

Cisco patched critical unauthenticated SQL injection CVE-2026-76461 (CVSS 9.8) in Secure Email Gateway enabling root command execution, with malicious activity already detected.

Cisco disclosed CVE-2026-76461, a critical SQL injection (CVSS 9.8) in Cisco Secure Email Gateway appliances running AsyncOS, letting unauthenticated remote attackers execute arbitrary commands as root via crafted emails containing malicious SQL statements. Cisco detected malicious activity and directly contacted Secure Email Cloud customers, indicating active exploitation. No workaround exists; fixed releases are AsyncOS 15.5.5-0141, 16.0.4-3021, and 16.5.0-780, with migration to 16.5.0-780 advised. Secure Email and Web Manager and Secure Web Appliance are not affected.

GBHackersupdated 13:57 UTC · 3h agofirst Sep 15, 05:01 UTC · 1d agoExploit / PoC in the wild 17 sources CVE-2026-764612

One Click on a Malicious Link Lets Hackers Backdoor Sogou Input Method Users

Actively exploited one-click flaw in Sogou Input Method (CVE-2026-51990) let UNC3569 deploy the GRAYRABBIT espionage backdoor on Windows.

Gen Digital researchers found three weaknesses in Sogou Input Method's sgbiz protocol handler that chain into a one-click RCE running with the signed-in user's permissions. UNC3569 used the chain in an active intrusion, leveraging an unsandboxed Chromium 80 embedded browser, the known V8 flaw CVE-2021-38003, and DLL sideloading via 7-Zip to deploy the GRAYRABBIT backdoor. Tencent fixed the issue in version 16.3.0.3498 within 12 days of disclosure; Sogou is used by hundreds of millions of people, mainly in China.

Cyber Security NewsSep 14, 13:01 UTC · 2d agoExploit / PoC in the wild 3 sources CVE-2026-51990 CVE-2021-38003

Week in review: Linux rootkit deployed on F5 BIG-IP APM devices, Cisco FMC bugs exploited

Weekly roundup: Cisco FMC and N-able N-central zero-days exploited in the wild, MikroTik RouterOS hijacks, Microsoft Patch Tuesday ships two exploited zero-days.

State-sponsored and financially-motivated attackers are actively exploiting CVE-2026-20079, a critical authentication bypass in Cisco Secure Firewall Management Center (FMC), alongside CVE-2026-20316. N-able issued an emergency hotfix for CVE-2026-86218, a critical pre-auth RCE in the N-central RMM platform exploited in the wild. CERT Polska disclosed six RouterOS vulnerabilities being chained to hijack internet-exposed MikroTik devices. Microsoft's September 2026 Patch Tuesday shipped a record patch count including two zero-days, while roughly 67,000 Trezor customers faced phishing after a shipping-partner breach and researchers privately disclosed a zero-click WeChat worm to Tencent.

Help Net SecuritySep 13, 08:00 UTC · 3d agoExploit / PoC in the wildCVE-2026-20079 CVE-2026-20316 CVE-2026-862182· 1 read

China-Linked Hackers Exploit Chrome and Windows Zero-Days in BlueMoon Attacks

China-linked clusters deploy the BlueMoon kit chaining Chrome V8 CVE-2026-85046 and Windows LPE CVE-2026-85880 in espionage campaigns.

Proofpoint researchers identified BlueMoon, an exploit kit combining a V8 type-confusion RCE (CVE-2026-85046), a V8 sandbox escape, and a Windows kernel privilege-escalation flaw (CVE-2026-85880), first observed August 28, 2026. At least four clusters adopted it, led by TA412 (also tracked as APT31/Violet Typhoon) and followed by UNK_LateNight, UNK_DoubleCheck, and UNK_QuietRacket, targeting aerospace, manufacturing, government, consulting, and financial sectors. The kit exploited a nearly four-week patch gap between the public Chromium commit (August 7) and stable rollout (September 3). TA412 delivered the GemStone Chrome extension masquerading as a Gemini companion, while other clusters deployed ShadowPad via DLL sideloading, a Rust loader, and DoH-based C2.

GBHackersupdated 16:06 UTC · 1h agofirst Sep 10, 05:15 UTC · 6d agoExploit / PoC in the wild 18 sources CVE-2026-85046 CVE-2026-858801