Microsoft · Incorrect Boundary Conditions
Affects MicrosoftSource GCVE Database
Not known to be exploited · CVSS 7.3 High · patch available : patch Microsoft soon.
Data as of 14 Nov 2026, 09:31 UTC
- Patch
- Available
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:LExploitation evidence
Disclosed: evidence found.
CVE published 16 Jun 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 13 Nov 2026.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| Microsoft Security Response Center Microsoft | Affected
| Fixed in
|
Description
CVE-2026-12324 is a vulnerability in the Microsoft Graphics: CanvasWebGL component involving incorrect boundary conditions. The issue is identified in version 4.0 of the affected software. No CVSS score or detailed impact information is provided, and there is no indication of known exploitation in the wild or available patches.