High 7.8Known exploited (CISA KEV)Published Feb 14, 2023

CVE-2023-21823Windows Graphics Component Remote Code Execution Vulnerability

Updated under an hour ago (Oct 27, 2026, 11:40 AM ET)

Does this affect you?

It affects Microsoft Office for Android and 20 other products. Add what you run to find out whether that includes you.

CISA lists it as known exploited since Feb 14, 2023; federal agencies had to remediate by Mar 7, 2023. Treat that date as your deadline.

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Exploited in the last 30 days

Windows Graphics Component Remote Code Execution Vulnerability

CVSS: 7.8 HIGH (v3.1, CNA)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:H/RL:O/RC:C
Weakness (CWE): CWE-190
Known exploited: Added to CISA KEV Feb 14, 2023; federal remediation due Mar 7, 2023Apply updates per vendor instructions.
EPSS (exploitation in the next 30 days): 5.56% (percentile 93)
Assigned by: microsoft
NVD analysis: Analyzed
Record last updated: Aug 19, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Microsoft Microsoft Office for Android microsoft:office_for_android (from the name)	from 16.0.1 before 16.0.16130.20156	CNA record
Microsoft Microsoft Office for iOS microsoft:office_for_ios (from the name)	from 2.0.0 before 2.70.23021003	CNA record
Microsoft Microsoft Office for Universal microsoft:office_for_universal (from the name)	from 16.0.1 before 16.0.14326.21330	CNA record
Microsoft Windows 10 Version 1507 microsoft:windows_10_1507	from 10.0.10240.0 before 10.0.10240.19747	CNA record
Microsoft Windows 10 Version 1607 microsoft:windows_10_1607	from 10.0.14393.0 before 10.0.14393.5717	CNA record
Microsoft Windows 10 Version 1809 microsoft:windows_10_1809	from 10.0.17763.0 before 10.0.17763.4010	CNA record
Microsoft Windows 10 Version 20H2 microsoft:windows_10_20h2	from 10.0.0 before 10.0.19042.2604	CNA record
Microsoft Windows 10 Version 21H2 microsoft:windows_10_21h2	from 10.0.19043.0 before 10.0.19044.2604	CNA record
Microsoft Windows 10 Version 22H2 microsoft:windows_10_22h2	from 10.0.19045.0 before 10.0.19045.2604	CNA record
Microsoft Windows 11 version 21H2 microsoft:windows_11_21h2	from 10.0.0 before 10.0.22621.1574	CNA record
1–10 of 33

References

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-21823	vendor-advisory, patch
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-21823	us-government-resource

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.