Cyber Centre Daily Advisory Digest — 2026-03-24 (2 advisories)

Key Takeaways

• Google released a security advisory for Chrome Desktop versions prior to 146.0.7680.164/165.
• Mozilla released security advisories for Firefox versions prior to 149 and Firefox ESR versions prior to 115.34 and 140.9.
• Users and administrators are strongly encouraged to apply the necessary browser updates.

Affected Systems

• Google Chrome Desktop (Windows/Mac) prior to 146.0.7680.164/165
• Google Chrome Desktop (Linux) prior to 146.0.7680.164
• Mozilla Firefox prior to 149
• Mozilla Firefox ESR prior to 115.34
• Mozilla Firefox ESR prior to 140.9

Detection Availability

• YARA Rules: No
• Sigma Rules: No
• Snort/Suricata Rules: No
• KQL Queries: No
• Splunk SPL Queries: No
• EQL Queries: No
• Other Detection Logic: No

N/A

Detection Engineering Assessment

EDR Visibility: None — The advisory only covers patch availability and does not provide behavioral indicators or exploit details. Network Visibility: None — No network indicators or exploit traffic signatures are provided in the advisory. Detection Difficulty: N/A — No active threat detection is described; the focus is entirely on vulnerability and patch management.

Required Log Sources

• Vulnerability Management Systems
• Patch Management Logs

Control Gaps

• Outdated browser software

False Positive Assessment

• Low

Recommendations

Immediate Mitigation

• Update Google Chrome to version 146.0.7680.164/165 (Windows/Mac) or 146.0.7680.164 (Linux).
• Update Mozilla Firefox to version 149.
• Update Mozilla Firefox ESR to version 115.34 or 140.9.

Infrastructure Hardening

• Implement automated browser updates across the enterprise to ensure timely patching of web browsers.

User Protection

• Ensure users restart their browsers to fully apply pending updates.

Security Awareness

• Educate users on the importance of keeping web browsers up to date to protect against web-based exploits.