CVE-2026-108457
Microsoft Windows PDF Remote Code Execution Vulnerability
Out-of-bounds write in Microsoft Windows PDF allows an unauthorized attacker to execute code over a network.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- High
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Exploit likelihood
What each source reports
CVE List Score used
Microsoft Windows PDF Remote Code Execution Vulnerability
Out-of-bounds write in Microsoft Windows PDF allows an unauthorized attacker to execute code over a network.
- Record
CVE-2026-108457- CVSS 3.1
- 8.1 High
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C - Weakness
- CWE-787
- Updated
- 2026-11-10
EUVDEUVD-2026-99032
Out-of-bounds write in Microsoft Windows PDF allows an unauthorized attacker to execute code over a network.
- Record
EUVD-2026-99032- CVSS 3.1
- 8.1 High
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C - Updated
- 2026-11-10
GitHub AdvisoriesGHSA-5vcp-c5rc-rq78
Out-of-bounds write in Microsoft Windows PDF allows an unauthorized attacker to execute code over...
Out-of-bounds write in Microsoft Windows PDF allows an unauthorized attacker to execute code over a network.
- Record
GHSA-5vcp-c5rc-rq78- CVSS 3.1
- 8.1 High
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-787
- Updated
- 2026-11-02
NVD
Out-of-bounds write in Microsoft Windows PDF allows an unauthorized attacker to execute code over a network.
- Record
CVE-2026-108457- CVSS 3.1
- 8.1 High
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-787
- Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| facts | EUVD | |
| first indexed | CVE List, EUVD, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2026-108457 is a high vulnerability (CVSS 8.1) in Microsoft Windows 10 Version 21h2, published October 13, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.76%, the 55th percentile. No source names a fixed version.