No. 07Week of September 23, 2026This week’s briefing
Tradecraft

The Wednesday BriefingWednesday, September 23, 2026

The UAE’s SMS OTP phase-out is done. What US banks can take from it + 2 more

Wednesday, September 23, 2026. Covers September 17, 2026 to September 23, 2026.

From the editor

The UAE’s deadline for retiring SMS and email codes has passed, and NIST’s “restricted” label for SMS is a benchmark US examiners and auditors use. This week’s reading is about what each means for a US bank’s roadmap.

In this issue

Exploited this week

8 additions to CISA’s KEV catalog, Sep 17 to Sep 23.

CISA KEV additions, September 17, 2026 to September 23, 2026
CVEVendor and productVulnerabilityAddedDue (federal)Ransomware use
CVE-2026-94127F5 BIG-IP APMF5 BIG-IP APM Heap-based Buffer Overflow Vulnerability
CISA summary

F5 BIG-IP APM contains a heap-based buffer overflow vulnerability when access policy and an OAuth profile are configured on a virtual server. This vulnerability could allow an unauthenticated attacker to perform remote code execution.

Unknown
CVE-2026-93952Arista VeloCloud OrchestratorArista VeloCloud Orchestrator Improper Input Validation Vulnerability
CISA summary

Arista VeloCloud Orchestrator (VCO) on-prem contains an improper input validation vulnerability that may allow a remote attacker to access privileged internal functionality and impact the VCO host. Successful exploitation may compromise the confidentiality, integrity, and availability of the orchestrator and data managed by the orchestrator.

Unknown
CVE-2026-93616Check Point Multiple ProductsCheck Point Multiple Products Path Traversal Vulnerability
CISA summary

Check Point Security Management Server, Multi-Domain Security Management Server, Log Server, Multi-Domain Log Server, and SmartEvent contain a path traversal vulnerability that allows an unauthenticated attacker to upload and execute arbitrary scripts.

Unknown
CVE-2026-85102Check Point Multiple ProductsCheck Point Multiple Products Improper Certificate Validation Vulnerability
CISA summary

Check Point Security Gateway and Check Point Spark Firewall using Site to Site VPN or Remote Access VPN contain an improper certificate validation vulnerability which could allow an unauthenticated remote attacker to execute arbitrary code on the Gateway.

Unknown
CVE-2026-7273Zyxel GS1900 Series SwitchesZyxel GS1900 Series Switches Stack-Based Buffer Overflow Vulnerability
CISA summary

Zyxel GS1900 series switches contain a stack-based buffer overflow vulnerability in the CGI program which could allow a LAN-based, unauthenticated attacker to exploit the flaw and potentially execute OS commands via a crafted HTTP request.

Unknown
CVE-2026-53266Linux KernelLinux Kernel Out-of-Bounds Write Vulnerability
CISA summary

Linux Kernel contains an out-of-bounds write vulnerability in the ebtables SNAT target which allows an ARP sender hardware address rewrite to write directly into a nonlinear socket-buffer fragment backed by a splice-imported file page. The impacted product(s) could be end-of-life (EoL) and/or end-of-service (EoS). Users are advised to discontinue use and/or transition to a supported version.

Unknown
CVE-2025-39964Linux KernelLinux Kernel Race Condition Vulnerability
CISA summary

Linux Kernel contains a race condition vulnerability which allows concurrent writes to the same AF_ALG socket causing data to be unpredictably interleaved and creating inconsistencies in the socket's internal state.

Unknown
CVE-2025-39682Linux KernelLinux Kernel Improper Check for Unusual or Exceptional Conditions Vulnerability
CISA summary

Linux Kernel contains an improper check for unusual or exceptional conditions vulnerability in the TLS receive path which allows a zero-length record retrieved from the rx_list to bypass the intended recvmsg() record-type handling, potentially causing subsequent TLS records to be processed using incorrect zero-copy and queuing assumptions. The impacted product(s) could be end-of-life (EoL) and/or end-of-service (EoS). Users are advised to discontinue use and/or transition to a supported version.

Unknown

Source: CISA Known Exploited Vulnerabilities catalog, version 2026.09.23. Due dates apply to US federal civilian agencies; summaries are CISA’s.