CVE-2025-62458: CWE-122: Heap-based Buffer Overflow in Microsoft Windows 10 Version 1607
Heap-based buffer overflow in Windows Win32K - GRFX allows an authorized attacker to elevate privileges locally.
AI Analysis
Technical Summary
This vulnerability (CVE-2025-62458) involves a heap-based buffer overflow in the Windows Win32K GRFX subsystem on Windows 10 Version 1607. An authorized local attacker can exploit this flaw to gain elevated privileges, potentially allowing them to execute code with higher permissions. The vulnerability is classified under CWE-122 (Heap-based Buffer Overflow) and has a CVSS v3.1 score of 7.8, reflecting high impact on system security. The vendor has released a patch to remediate this issue.
Potential Impact
Successful exploitation of this vulnerability allows an authorized local attacker to elevate their privileges, potentially leading to full system compromise. The impact affects confidentiality, integrity, and availability of the affected system. There are no known exploits in the wild at this time.
Mitigation Recommendations
A patch is available for this vulnerability. It is recommended to apply the official Microsoft update for Windows 10 Version 1607 (build 10.0.14393.0) to remediate this issue. Since this is a local privilege escalation vulnerability, applying the patch will prevent attackers from exploiting this flaw to gain elevated privileges.
CVE-2025-62458: CWE-122: Heap-based Buffer Overflow in Microsoft Windows 10 Version 1607
Description
Heap-based buffer overflow in Windows Win32K - GRFX allows an authorized attacker to elevate privileges locally.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CVE-2025-62458) involves a heap-based buffer overflow in the Windows Win32K GRFX subsystem on Windows 10 Version 1607. An authorized local attacker can exploit this flaw to gain elevated privileges, potentially allowing them to execute code with higher permissions. The vulnerability is classified under CWE-122 (Heap-based Buffer Overflow) and has a CVSS v3.1 score of 7.8, reflecting high impact on system security. The vendor has released a patch to remediate this issue.
Potential Impact
Successful exploitation of this vulnerability allows an authorized local attacker to elevate their privileges, potentially leading to full system compromise. The impact affects confidentiality, integrity, and availability of the affected system. There are no known exploits in the wild at this time.
Mitigation Recommendations
A patch is available for this vulnerability. It is recommended to apply the official Microsoft update for Windows 10 Version 1607 (build 10.0.14393.0) to remediate this issue. Since this is a local privilege escalation vulnerability, applying the patch will prevent attackers from exploiting this flaw to gain elevated privileges.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- microsoft
- Date Reserved
- 2025-10-14T18:24:58.483Z
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 693867e374ebaa3babaf6fe1
Added to database: 12/9/2025, 6:18:11 PM
Last enriched: 4/17/2026, 11:13:36 AM
Last updated: 5/10/2026, 12:13:25 AM
Views: 131
Community Reviews
0 reviewsCrowdsource mitigation strategies, share intel context, and vote on the most helpful responses. Sign in to add your voice and help keep defenders ahead.
Want to contribute mitigation steps or threat intel context? Sign in or create an account to join the community discussion.
Actions
Updates to AI analysis require Pro Console access. Upgrade inside Console → Billing.
External Links
Need more coverage?
Upgrade to Pro Console for AI refresh and higher limits.
For incident response and remediation, OffSeq services can help resolve threats faster.
Latest Threats
Check if your credentials are on the dark web
Instant breach scanning across billions of leaked records. Free tier available.