CVE-2025-24990
Published: October 14, 2025
Official Description
Microsoft Windows Agere Modem Driver contains an untrusted pointer dereference vulnerability that allows for privilege escalation. An attacker who successfully exploited this vulnerability could gain administrator privileges.
CISA KEV Advisory
Microsoft Windows Untrusted Pointer Dereference Vulnerability
Microsoft Windows Agere Modem Driver contains an untrusted pointer dereference vulnerability that allows for privilege escalation. An attacker who successfully exploited this vulnerability could gain administrator privileges.
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
Risk Analysis
This vulnerability in the Microsoft Windows Agere Modem Driver allows an attacker to gain administrator privileges due to an untrusted pointer dereference. It is a high-severity flaw and is urgent because it is in CISA's KEV catalog, confirming active exploitation. The EPSS score of 0.06427 indicates a moderate likelihood of exploitation.
This vulnerability is actively being exploited in the wild and is included in CISA's KEV catalog, confirming its use by threat actors.
Update the Microsoft Windows Agere Modem Driver to the latest version. Regularly apply all security updates for Microsoft Windows to address privilege escalation vulnerabilities.
Technical Analysis
CVE-2025-24990 requires local access, meaning attackers must already have a foothold on the target system.
Exploitation requires some privileges, which limits the exposure to scenarios where an attacker has already gained initial access.
CISA has added CVE-2025-24990 to the Known Exploited Vulnerabilities (KEV) catalog, confirming active exploitation in the wild. U.S. federal agencies are required to patch this within the mandated timeframe, and all organizations should treat remediation as urgent.
Affected Vendors & Products
Exploit & PoC Resources
All References (2)
Quick Facts
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2025-24990 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts
- !CISA KEV: Federal agencies must patch per BOD 22-01 timeline
- !Active exploitation confirmed — treat as P1