🔥 Top 5 — Actively Exploited / Truly Critical

1) Apple Image I/O Zero-Day — CVE-2025-43300 (Exploited in the Wild)

• What: Out-of-bounds write in Image I/O triggered by a crafted image → potential RCE.

• Where: iOS/iPadOS/macOS (multiple supported branches).

• Status: Exploited; patch released (iOS/iPadOS/macOS emergency updates).

• Why P1: One-click (viewing an image) on high-value targets; mobile fleet exposure.

• Do now: Patch all Apple endpoints; disable auto-preview of images in messengers/mail until updated; watch for post-image process crashes or odd egress. Daily CyberSecurity

2) Trend Micro Apex One (On-Prem) — CVE-2025-54948 / CVE-2025-54987 (Actively Exploited)

• What: Pre-auth OS command injection in the on-prem Apex One Management Console → full RCE.

• Status: Added to CISA KEV; Trend released urgent fixes/mitigations.

• Why P1: Common in enterprise; console often exposed internally/externally for ops.

• Do now: Patch to Trend’s fixed build; if you can’t, follow vendor mitigations, lock down console exposure, and review admin/auth logs for post-exploitation activity. CISAsuccess.trendmicro.com

3) Cisco Secure Firewall FMC — CVE-2025-20265 (CVSS 10.0)

• What: RCE via RADIUS authentication path in FMC; unauthenticated attacker can inject commands if RADIUS is enabled for web/SSH auth.

• Status: Patch available; exploitation not publicly confirmed, but exposure is massive and control-plane impact is total.

• Why P1: Perimeter/security-appliance control; typical enterprise config uses RADIUS.

• Do now: Patch immediately or switch auth off RADIUS (local/LDAP) per Cisco guidance; restrict management plane to admin networks only; review auth logs. sec.cloudapps.cisco.comThe Hacker News

4) Microsoft SharePoint (On-Prem) — CVE-2025-53770 (Exploit Available In The Wild)

• What: Deserialization → RCE over network on on-prem SharePoint.

• Status: Microsoft acknowledges exploit exists; CISA issued guidance & added to KEV in July; still widely unpatched in the field.

• Why P1: Externally reachable portals; quick domain pivot through service creds.

• Do now: Apply Microsoft mitigations and latest cumulative updates; isolate SharePoint from internet where possible; hunt for unusual web.config, timer jobs, or dropped aspx/webshells. NVDCISA

5) Dahua CCTV (Multiple Models) — CVE-2025-31700 / CVE-2025-31701 (Unauth RCE)

• What: Buffer-overflow bugs allow full remote control of >100 camera models; no auth required.

• Status: Patches available; internet-exposed devices remain at high risk.

• Why P1: Cameras often sit on flat networks; great foothold for lateral movement.

• Do now: Patch firmware; remove cameras from the internet, disable UPnP, place on isolated VLANs with deny-all egress. TechRadar

🔎 Elevated-Concern (Critical but not yet confirmed exploited)

Microsoft Patch Tuesday (Aug 2025) — Multiple Critical RCEs

• Highlights: Windows Graphics (CVE-2025-50165), MSMQ (CVE-2025-50177), Office/Word preview-pane RCEs, plus Kerberos zero-day (CVE-2025-53779) publicly disclosed.

• Do now: Ensure August baselines deployed; prioritize internet-exposed services, Office endpoints, and DCs (Kerberos). CrowdStrikeThe Hacker NewsTenable®

🛠️ SOC Playbook — What to Hunt Today

1. Apple zero-day (CVE-2025-43300)

   • Hunt: image-view-triggered crashes (Photos/Preview/Messages), odd outbound traffic within 30s of image open.

   • Contain: isolate device; collect sysdiagnose; review message threads. Daily CyberSecurity

2. Apex One console (CVE-2025-54948/54987)

   • Hunt: unusual POSTs to console endpoints, new admin users, Remote Install Agent activity, suspicious cmd.exe/powershell.exe spawned by web service account.

   • Contain: block console from internet; rotate admin creds; check ZDI references. success.trendmicro.com

3. Cisco FMC (CVE-2025-20265)

   • Hunt: RADIUS auth attempts from new IPs; shell history for root/admin on FMC; config diffs.

   • Contain: switch auth off RADIUS per advisory; restrict mgmt ACLs; patch. sec.cloudapps.cisco.com

4. SharePoint RCE (CVE-2025-53770)

   • Hunt: new/modified .aspx in _layouts or temp paths; anomalous w3wp spawns; event logs for deserialization errors then process creation.

   • Contain: implement Microsoft mitigations; web app isolation; scan for webshells. NVDCISA

5. Dahua CCTV

   • Hunt: unknown remote sessions, config changes, outbound beacons from camera VLANs.

   • Contain: firmware update + network isolation immediately. TechRadar

🧱 Immediate Risk-Reduction Checklist (P1 Only)

• Patch & Mitigate

  • Apple devices → emergency updates for CVE-2025-43300. Daily CyberSecurity

  • Trend Micro Apex One (on-prem) → apply hotfix/mitigation; restrict console. success.trendmicro.com

  • Cisco FMC → patch; disable RADIUS for mgmt or swap to local/LDAP; lock mgmt plane. sec.cloudapps.cisco.com

  • SharePoint on-prem → apply mitigations and updates; audit content roots. NVDCISA

  • Dahua cameras → update firmware; remove from internet; isolate. TechRadar

• Identity & Segmentation

  • Enforce MFA on all admin planes.

  • Segregate security appliances & management consoles; deny internet ingress by default.

• Telemetry

  • Turn on high-fidelity logging (HTTP, auth, child-process trees) on consoles, DCs, and MDMs.

  • Add alert rules for: “new admin user,” “config change outside change window,” “mgmt plane login from new ASN.”

CyberDudeBivash Insight

Attackers are chaining management-plane exposure (Apex One, FMC, SharePoint) with endpoint zero-days (Apple) and edge IoT (Dahua). This week is a reminder: your admin consoles are Tier-0—treat them like identity providers. Patch velocity matters, but exposure control (network allow-lists, MFA, and egress restrictions) decides who sleeps tonight.

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