Secuno
ENNL
Book demo

CVE-2023-21823

Microsoft Windows Graphic Component Privilege Escalation

7.8 HIGHActively exploited (CISA KEV)EPSS 5.56%
  1. Published14 Feb 2023
  2. Added to CISA KEV14 Feb 2023
  3. Remediation due7 Mar 2023
Actively exploited (CISA KEV)

Microsoft Windows Graphic Component contains an unspecified vulnerability that allows for privilege escalation.

Added to KEV: 14 Feb 2023Federal remediation due: 7 Mar 2023

Description

Windows Graphics Component Remote Code Execution Vulnerability

CVSS 3.1 breakdown

Attack vectorLocal
Attack complexityLow
Privileges requiredLow
User interactionNone
ScopeUnchanged
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected products

Microsoft Windows 10 1507< 10.0.10240.19747
Microsoft Windows 10 1607< 10.0.14393.5717
Microsoft Windows 10 1809< 10.0.17763.4010
Microsoft Windows 10 20h2< 10.0.19042.2604
Microsoft Windows 10 21h2< 10.0.19044.2604
Microsoft Windows 10 22h2< 10.0.19045.2604
Microsoft Windows 11 21h2< 10.0.22000.1574
Microsoft Windows 11 22h2< 10.0.22621.1265
Microsoft Windows Server 2008r2
Microsoft Windows Server 2012r2
Microsoft Windows Server 2016all versions
Microsoft Windows Server 2019all versions
Microsoft Windows Server 2022all versions

Remediation

Fixed in
Microsoft Windows 10 1507≥ 10.0.10240.19747
Microsoft Windows 10 1607≥ 10.0.14393.5717
Microsoft Windows 10 1809≥ 10.0.17763.4010
Microsoft Windows 10 20h2≥ 10.0.19042.2604
Microsoft Windows 10 21h2≥ 10.0.19044.2604
Microsoft Windows 10 22h2≥ 10.0.19045.2604
Microsoft Windows 11 21h2≥ 10.0.22000.1574
Microsoft Windows 11 22h2≥ 10.0.22621.1265

References

Related CVEs

Recent high-severity vulnerabilities sharing a weakness type.

CVE-2026-9722910.0
GitLab has remediated an issue in GitLab CE/EE affecting all versions from 19.2 before…
CVE-2026-195698.8
dynamic_object_create() in kernel/userspace/userspace.c computed the backing allocation…
CVE-2026-593469.3
VMware Workstation and Fusion contain an integer-overflow vulnerability. A malicious…
CVE-2026-1064179.6
Integer overflow in Media in Google Chrome prior to 155.0.8059.39 allowed a remote…
CVE-2026-1062399.6
Integer overflow in WebGL in Google Chrome on on Android prior to 155.0.8059.39 allowed…
CVE-2026-935468.8
Integer overflow in mod_dav_fs in Apache HTTP Server through 2.4.68 allows an…

Frequently asked

Is CVE-2023-21823 being actively exploited?

Yes. CVE-2023-21823 is listed in the CISA Known Exploited Vulnerabilities (KEV) catalog, added 14 Feb 2023.

How severe is CVE-2023-21823?

CVE-2023-21823 has a CVSS 3.1 base score of 7.8, rated high. EPSS estimates a 5.56% probability of exploitation.

Which products are affected by CVE-2023-21823?

Affected products include Microsoft Windows 10 1507, Microsoft Windows 10 1607, Microsoft Windows 10 1809, Microsoft Windows 10 20h2, Microsoft Windows 10 21h2, and 8 more.

How do I fix CVE-2023-21823?

Upgrade affected software to a fixed version, for example Microsoft Windows 10 1507 10.0.10240.19747, Microsoft Windows 10 1607 10.0.14393.5717, Microsoft Windows 10 1809 10.0.17763.4010 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2023-21823 against the real software inventory on every managed device, every day. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. Because it is on the CISA KEV list, Secuno flags any affected asset as top-priority automatically. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

See how prioritisation worksBook a demo

Get Patch this first every Monday

Five vulnerabilities that matter this week, ranked on real exploitation. Plain language, one email, no spam.

You can unsubscribe with one click from every issue. We handle your details as described in our privacy policy.

Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.