NVD disclosure day

Published threat advisories for December 17, 2025

CVE advisoryKnown Exploit

CVE-2025-43529

Apple Safari and iOS Code Execution Vulnerability

Halo Surface Signal: 1 out of 5 — much less likely to be public-facing.

A use-after-free vulnerability affects Apple's WebKit, impacting Safari, iOS, iPadOS, macOS, tvOS, watchOS, and visionOS. Malicious web content can lead to arbitrary code execution, potentially exposing data and disrupting operations. This vulnerability has reportedly been exploited in sophisticated, targeted attacks.

• CISA KEV

CVE advisoryKnown Exploit

CVE-2025-20393

Cisco Email Security Command Execution Vulnerability.

Halo Surface Signal: 5 out of 5 — more likely to be public-facing.

A vulnerability in Cisco's Spam Quarantine feature allows remote attackers to execute arbitrary commands with root privileges on affected email security devices, posing a significant business risk. The flaw stems from insufficient validation of HTTP requests.

• CISA KEV

CVE advisoryKnown Exploit

CVE-2025-59374

ASUS Live Update Supply Chain Compromise

Halo Surface Signal: 1 out of 5 — much less likely to be public-facing.

Supply chain compromise affected ASUS Live Update client versions with unauthorized modifications. Devices meeting specific conditions and using compromised versions could perform unintended actions. The client is end-of-support, so no current products are impacted, limiting business risk.

• CISA KEV