CVE-2026-96157: Microsoft Windows 10 Version 1607 · Heap-based Buffer Overflow
Affects Microsoft Windows 10 Version 1607Source CVE Database V5
Not known to be exploited · CVSS 9.8 Critical : upgrade to 10.0.14393.9688 as a priority.
Data as of 10 Nov 2026, 18:49 UTC
Thin evidence
One scorer or none| CNA (microsoft) | CVSS 3.1 | 9.8 |
|---|
- Patch
- Available – fixed in 10.0.14393.9688, 10.0.17763.9487, 10.0.19044.7846 +8
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:CExploitation evidence
Disclosed: evidence found.
CVE published 10 Nov 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 10 Nov 2026.
What to do
Upgrade to a fixed release listed under Affected software.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| MicrosoftWindows 10 Version 1607 | Affected
| Fixed in
|
| MicrosoftWindows 10 Version 1809 | Affected
| Fixed in
|
| MicrosoftWindows 10 Version 21H2 | Affected
| Fixed in
|
| MicrosoftWindows 10 Version 22H2 | Affected
| Fixed in
|
| MicrosoftWindows 11 version 23H2 | Affected
| Fixed in
|
| MicrosoftWindows 11 Version 23H2 | Affected
| Fixed in
|
AI-suggested
Microsoft has released official security updates that fix this vulnerability in the specified fixed versions. Users and administrators should apply these patches promptly to mitigate the risk. Since an official fix is available, no additional mitigation steps are required beyond patching.
Description
CVE-2026-96157 is a critical heap-based buffer overflow vulnerability in Microsoft Windows Media Foundation affecting Windows 10 Version 1607 and later builds up to specific patched versions. This flaw allows an unauthorized attacker to execute arbitrary code remotely over a network without user interaction. The vulnerability has a CVSS score of 9.8, indicating high impact on confidentiality, integrity, and availability. Microsoft has released official fixes for all affected versions.