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Google says some Pixel phone owners were hacked in zero-day attacks
Google patched CVE-2026-58704, a zero-click Pixel modem privilege-escalation zero-day exploited in limited, targeted attacks.
Google disclosed that a vulnerability in Pixel smartphones' modem software, tracked as CVE-2026-58704, was exploited in limited and targeted cyberattacks and has now been patched. Exploitation could allow an attacker to escape the modem sandbox and escalate privileges to access broader phone data. The bug can be exploited silently with zero user interaction. Google did not attribute the activity, though such modem bugs are commonly abused by surveillance vendors selling spyware to governments.
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Acronis Plugin Vulnerability in cPanel and Plesk Exploited in the Wild
Acronis patched CVE-2026-87886 (CVSS 7.8), a local privilege escalation flaw in its cPanel and Plesk backup plugins, exploited in targeted attacks.
Acronis released fixes for CVE-2026-87886 (CVSS 7.8, CWE-276), an insecure file permissions flaw in Linux-based backup components for cPanel & WHM and Plesk that enables local privilege escalation. The vendor observed limited, targeted exploitation in the wild before patches shipped. Fixes are available in Backup plugin for cPanel & WHM 1.9.3 HF3 and Backup extension for Plesk 1.8.11. A local attacker with low privileges could gain elevated access to backup data, control panels, and other customer accounts on shared hosting infrastructure.
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Google fixes actively exploited Android zero-day on Pixel devices
Google patched 110 Pixel flaws including CVE-2026-58704, a modem privilege-escalation zero-day under limited targeted exploitation.
Google's September 2026 Pixel security update fixes 110 vulnerabilities, including CVE-2026-58704, a high-severity zero-day in the Cellular Modem subcomponent that Google says is under limited, targeted exploitation. The improper-authorization flaw lets attackers with adjacent network access and basic privileges escalate privileges without user interaction. The bulletin also includes 12 remote code execution and 89 privilege escalation flaws rated critical or high severity.
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Hackers Exploit FortiGate SSL-VPN Vulnerability to Attack Broadband Provider
Exposed attacker staging server reveals intrusion of Thai broadband provider 3BB via actively exploited FortiGate SSL-VPN flaw CVE-2024-21762.
Hunt.io found an open directory on server 92.63.180[.]133 holding 298 files detailing an intrusion into Triple T Broadband's 3BB brand, starting from a FortiGate 60F SSL-VPN at mail.3bb.co[.]th:10443. The actor weaponized CVE-2024-21762 (CVSS 9.8, KEV-listed since February 2024) using heap spraying and a ROP chain to gain a reverse shell. Post-exploitation included MeshCentral root-level persistence via www.ayuthayatech[.]com, Dirty COW/PwnKit privilege escalation, credential harvesting, SSH spraying against 55+ internal addresses, and log-deleting cleanup scripts; a stolen OpenVPN certificate and key from Triple T's PKI may still be valid.
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U.S. CISA adds Microsoft Windows, N-able N-central, and Adobe flaws to its Known Exploited Vulnerabilities catalog
CISA added four actively exploited flaws to its KEV catalog: Magento StyleSmuggler RCE, two Windows privilege-escalation bugs, and N-able N-central RCE.
CISA added CVE-2026-75650 (Adobe Commerce/Magento, CVSS 10.0), CVE-2026-81963 and CVE-2026-85880 (Microsoft Windows local privilege escalation, CVSS 7.8 each), and CVE-2026-86218 (N-able N-central pre-auth RCE, CVSS 10.0) to its Known Exploited Vulnerabilities catalog. Sansec researchers report the StyleSmuggler Magento flaw, actively exploited since September 4, lets unauthenticated attackers run code on vulnerable online stores and deploy web shells and backdoors; Microsoft confirmed active exploitation of both Windows flaws, and N-able shipped an emergency hotfix. Federal civilian agencies must patch the Windows flaws by September 22, 2026, and the remaining entries by September 11, 2026 under BOD 22-01.
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Microsoft fixes record 964 flaws, including 2 exploited zero-days
Microsoft's September Patch Tuesday fixes a record 964 CVEs, including two actively exploited Windows privilege-escalation zero-days, CVE-2026-81963 and CVE-2026-85880.
Microsoft's September 2026 Patch Tuesday addresses 964 customer-patchable CVEs (104 Critical, 860 Important), the largest release on record, out of 974 total listed. Two actively exploited zero-days are fixed: CVE-2026-81963, a link-following elevation-of-privilege flaw in the Windows Update Stack, and CVE-2026-85880, a Windows ALPC heap overflow enabling AppContainer sandbox escape, both with CVSS 7.8. Both zero-days were exploited before a patch was available and grant SYSTEM-level access after an initial foothold. The release also includes high-severity RCE fixes for Windows DNS Server, Remote Desktop Services, Exchange Server, SharePoint, and SQL Server.
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Microsoft Patches Record 974 Flaws, Including Two Exploited Windows Zero-Days
Microsoft's September Patch Tuesday fixed a record 974 flaws, including two Windows privilege-escalation zero-days actively exploited and added to CISA's KEV catalog.
Microsoft's September 2026 Patch Tuesday addressed a record 974 vulnerabilities (999 including 25 non-Microsoft CVEs), with over 110 rated critical; 723 affect Windows and 111 affect Office. Two Windows privilege-escalation zero-days are actively exploited: CVE-2026-85880, an ALPC heap-based buffer overflow, and CVE-2026-81963, an improper link resolution flaw in the Windows Update Stack, both allowing attackers to gain SYSTEM privileges. CISA added both flaws to its KEV catalog, giving federal civilian agencies until September 22, 2026 to apply fixes. Volexity, Proofpoint, MSTIC, and independent researchers were credited with the reports; notable additional fixes include network-reachable RCEs in Exchange, SharePoint, SQL Server, Remote Desktop Services, DNS, and DHCP.
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Chaotic Eclipse Releases Kaspersky Zero
Researcher Chaotic Eclipse released HardBreacher, a PoC privilege-escalation exploit for Kaspersky Endpoint Security on fully patched Windows 11 25H2.
Security researcher Chaotic Eclipse, also known as INFINITE NIGHTMARE and Nightmare-Eclipse, released a PoC zero-day exploit named HardBreacher targeting Kaspersky Endpoint Security v14.0.0.504. The exploit achieves privilege escalation on fully patched Windows 11 25H2, creating a DLL in System32 with full user permissions and potentially disrupting Kaspersky's UI process and file-access controls. The PoC is unstable and may require repeated attempts; Kaspersky claims it has already addressed the vulnerability.
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Researchers Build Self-Replicating AI Worm That Operates Entirely on Local, Open
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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.
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Acronis warns of actively exploited flaw in its cPanel backup plugin
Acronis reports CVE-2026-87886, a CVSS 7.8 Linux privilege escalation in its cPanel/WHM and Plesk backup plugins, exploited in limited targeted attacks.
CVE-2026-87886 is a high-severity local privilege escalation flaw in Acronis Backup plugin for cPanel & WHM (fixed in 1.9.3 HF3) and the Plesk extension (fixed in 1.8.11). A low-privileged attacker can elevate permissions on a vulnerable Linux server to access or modify sensitive data without user interaction. Acronis says it detected exploitation in the wild in limited, targeted attacks based on a single customer report, with no IOCs published yet.
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China-Linked Hackers Chain Chrome Zero-Day With Windows Kernel Flaw in Attacks
Volexity reports China-linked UTA0560 and JungleBamboo chained Chrome zero-day CVE-2026-85046 with kernel flaws to spy on NGOs.
Volexity documented campaigns detected on September 1, 2026, in which China-linked actors UTA0560 and JungleBamboo (APT31) chained CVE-2026-85046 (V8 type confusion), CVE-2026-87491 (WebAssembly sandbox escape), and CVE-2026-85880 (Windows kernel privilege escalation in RtlpCreateServerAcl). Victims were lured via links on legitimate U.S. university sites vulnerable to reflected XSS, then served hidden exploit iframes behind a donation-form image. Although a V8 fix had landed in Chromium's source after private August reporting, Chrome had not yet shipped it, creating a patch gap the actors exploited. The two groups installed distinct payloads: UTA0560 delivered the GRIMWEDGE JScript backdoor via DLL side-loading, while JungleBamboo used the SUPERSTOMP loader to install the LONGTALE credential-stealing Chrome extension disguised as Google Gemini.
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More JFrog Artifactory bugs under attack, and all 3 have patches
Multiple attackers are exploiting three JFrog Artifactory CVEs, including critical auth-bypass CVE-2026-82329, to gain admin access and install backdoors.
Wiz confirmed in-the-wild exploitation of all three JFrog Artifactory vulnerabilities: CVE-2026-42018 (high, improper authentication token leak), CVE-2026-42016 (high, privilege escalation), and CVE-2026-82329 (critical, unauthenticated authentication bypass). Starting August 15, attackers chained the first two bugs against self-hosted instances to gain admin access and dropped a custom Rust backdoor for C2; from September 1-8 several attackers exploited CVE-2026-82329. Post-exploitation included persistent admin accounts, Groovy plugins for remote code execution, web shells, token minting, key theft, and reconnaissance. Patching velocity has been slow, with 49-62% of organizations still vulnerable to individual bugs weeks after fixes were released.
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Artifactory Under Attack: In-the-Wild Exploitation of CVE-2026-42016, CVE-2026-42018 & CVE-2026-82329
Wiz Research confirms in-the-wild exploitation of three JFrog Artifactory vulnerabilities, chained to gain administrative control, deploy Groovy plugins, and install Rust backdoors.
Wiz Research identified active exploitation of CVE-2026-42016, CVE-2026-42018, and CVE-2026-82329 in JFrog Artifactory between August 15 and September 8, 2026. Attackers chain the anonymous-token exposure (CVE-2026-42018) with the token scope-validation flaw (CVE-2026-42016) to obtain admin-scoped tokens, while CVE-2026-82329 allows unauthenticated administrative access in default configurations. Observed post-exploitation includes persistent administrator accounts created in under five minutes, malicious Groovy plugin deployment, ad-hoc command execution, Rust-based C2 backdoors dropped to writable paths, and webshell uploads. Wiz measured that 59-62% of organizations running Artifactory remained vulnerable to the chained CVEs weeks after disclosure, and the vulnerabilities were already included in CISA KEV.
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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.
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Chinese espionage groups swarm to exploit triple-link chain of zero-days
At least four China-aligned espionage groups chained three zero-days in Chromium browsers and Windows ALPC for espionage since late August.
Proofpoint observed at least four state-aligned threat groups, starting with TA412/Violet Typhoon/APT31 on August 28, chaining three zero-days in the 'BlueMoon' exploit chain targeting Chrome, Chromium-based browsers and Microsoft Windows. The chain includes RCE flaws in Chromium's JavaScript engine (CVE-2026-85046, CVE-2026-87491) and a Windows Advanced Local Procedure Call privilege-escalation zero-day (CVE-2026-85880), enabling sandbox code execution, sandbox escape and system privileges. APT31 delivered the chain via phishing links to NGOs, mining and commodity trading firms in the US, installing a browser extension disguised as Google Gemini to surveil activity and steal credentials. Other groups (UNK_LateNight, UNK_DoubleCheck, UNK_QuietRacket) targeted US aerospace, Vietnamese manufacturing, and Indonesian and Singaporean organizations; fewer than 20 victims were directly observed but the true count is likely higher.
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MikroTik router flaws allow takeover without a password
Attackers actively exploit chained MikroTik RouterOS SSH flaws CVE-2026-67276 and CVE-2026-86060, bypassing authentication and escalating to admin to seize edge routers.
CERT Polska warns of active exploitation of a two-flaw chain dubbed 'MikroTrick' against internet-exposed MikroTik RouterOS devices with SSH remote management enabled. CVE-2026-67276 is an SSH authentication bypass in RSA public-key handling, and CVE-2026-86060 is a privilege-escalation flaw triggered via a specially crafted username, letting attackers gain full administrator control without a password. Patched RouterOS packages are already public, and MikroTik added a startup detection that flags unauthorized configuration changes. Compromised edge routers enable DNS hijacking, traffic capture, remote-access tunnels, firewall changes, and lateral attacks.
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Your MikroTik Router May Already Be Compromised: Look for SSH User “-2”
MikroTik RouterOS SSH auth-bypass chain MikroTrick (CVE-2026-67276 plus CVE-2026-86060) is actively exploited; patch to 7.24.2/7.23.5/6.49.21.
Attackers are actively exploiting a chain dubbed MikroTrick that combines CVE-2026-67276 (CVSS 9.2), an SSH authentication bypass in RouterOS RSA public key verification, and CVE-2026-86060, an SSH session privilege escalation, giving full admin control of internet-exposed MikroTik devices without the private key. Exploitation began around September 2, 2026, a day before MikroTik's September 3 patches, with confirmed compromises including creation of an 'ops' account; attacks traced to IPs 82.192.72.4 (Leaseweb) and 103.102.31.18. Fixed versions include 7.25beta3, 7.24.2, 7.23.4, 7.23.5 and 6.49.21. Defenders should check logs for failed logins with username '-2' and inspect /system history for ssh:-2@<IP> entries attached to configuration changes.
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New "Bad Epoll" Linux Kernel Flaw Lets Unprivileged Users Gain Root, Hits Android
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Week in review: Firmware-level Android backdoor found on tablets, Dell zero-day exploited since 2024
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