Daily Briefing
Today's outlook
CISA adds actively-exploited BeyondTrust Remote Support auth bypass to its KEV catalog
Good morning. CISA said on 16 October that it is aware of a critical authentication bypass vulnerability in BeyondTrust Remote Support (formerly Bomgar), versions 26.2.3 and earlier, and added it to the Known Exploited Vulnerabilities catalog the same day. CISA states that threat actors are actively exploiting it to gain initial access, then establishing persistence, escalating privileges and moving laterally. CISA urges organisations with affected self-hosted Remote Support appliances to apply the BT26-05-RS patch as outlined in BeyondTrust's Security Advisory BT26-05. CISA says patches are available for supported versions 24.3.1 and later; organisations on older versions must upgrade first. Treat any self-hosted appliance as a priority for patching and for compromise assessment given the active exploitation CISA describes.
Three further flaws carry active-exploitation status on CISA's KEV catalog. CISA lists CVE-2026-0322 in Palo Alto Networks PAN-OS (versions before the fix in 10.2.0) as known exploited; its CVSS vector is CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H, base score 7.2. CISA lists CVE-2026-96951 in Microsoft Windows Server, with Microsoft's advisory naming the fix in build 10.0.14393.9612; vector CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H, base score 8.8. CISA lists CVE-2026-104935 in Ivanti Connect Secure 22.8; vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:L, base score 8.6. Apply each vendor's fixed release per its advisory.
Google's Chrome advisory lists the fix in 155.0.8059.79 for three flaws — CVE-2026-110165, CVE-2026-110161 and CVE-2026-110159 — each carrying vector CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H, base score 9.6. Update Chrome and confirm the version. Separately, SecurityWeek reported a $250,000 Chrome exploit among its roundup.
BleepingComputer reported a maximum-severity "BlockStrap" flaw in Magento and Adobe Commerce that researchers warn allows attackers to run arbitrary PHP code on store servers.
In the day's other reporting: The Hacker News reported that attackers tampered with AOMEI Backupper's own update servers in five-to-ten-minute windows between May and July 2026 to deliver a backdoor. BleepingComputer reported Candiru spyware delivered to Al Jazeera Media Network devices through targeted ads in a zero-click attack. Help Net Security reported Fortra researcher Cadence Riddle tracking a twelvefold rise in "RFQ"-themed malicious emails aimed at sales and procurement staff. The Hacker News reported the UAT-11985 campaign using fake event invites and Google adversary-in-the-middle phishing against Taiwan research affiliates. The Register reported an attack on a BAE-managed system disrupting US bankruptcy courts, and The Record reported Anne Arundel County, Maryland, confirming an August data breach and Moscow detaining three suspected DataSuckers members.
Zoom out: The day's exploited flaws cluster on remote-access and edge products — BeyondTrust, Ivanti Connect Secure and Palo Alto PAN-OS — the kind an attacker uses to get in before moving laterally.
Vulnerability in focus
CVE-2026-0322 — Palo Alto Networks. CVSS 7.2 CISA lists it as known to be exploited.
Affected: panos.
What to do: Follow the vendor advisory for the fixed release and any interim mitigation.
What we're tracking
- BleepingComputer: Critical BlockStrap flaw lets hackers run code on Magento servers Read it
- The Hacker News: Researchers Demonstrate OpenBSD Root Exploit Chaining 37-Year-Old Shared-Memory Bug Read it
- The Record: Proofpoint lines up $6.3 billion deal for Varonis’ data security Read it
- SecurityWeek: In Other News: ICS-Sniper Attack, Hacking XWorm Malware Operators, $250k Chrome Exploit Read it
Sources
- Critical BlockStrap flaw lets hackers run code on Magento servers BleepingComputer
- Researchers Demonstrate OpenBSD Root Exploit Chaining 37-Year-Old Shared-Memory Bug The Hacker News
- Proofpoint lines up $6.3 billion deal for Varonis’ data security The Record
- In Other News: ICS-Sniper Attack, Hacking XWorm Malware Operators, $250k Chrome Exploit SecurityWeek
- Attack on BAE-managed system disrupts US bankruptcy courts The Register
- Hackers disguise phishing as promising business opportunities Help Net Security
- CISA Urges Patching Critical Vulnerability in BeyondTrust Remote Support CISA
- Backdooring Open-Weight AI Models Schneier on Security
- Zero-click attacks used targeted ads to deliver Candiru spyware BleepingComputer
- Attackers Tampered with AOMEI Backupper's Update Servers for Minutes to Deliver a Backdoor The Hacker News
- UAT-11985 Uses Fake Event Invites to Target Taiwan Research Affiliates With Google AitM Phishing The Hacker News
- OpenAI Research Model Spent 3rd-Party Test ETH Without Permission to Deploy Smart Contract The Hacker News
- Moscow detains suspected DataSuckers hackers linked to breaches in Ukraine and Russia The Record
- Baltimore suburb confirms August data breach after ransomware claims The Record
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Summarized from the linked reports and the advisory record by the desk. Verify against the original sources before citing.