Security Resilience

CVE-2023-24880

Access Control in Microsoft Windows 10 1607 ≤ 10.0.14393.5786

CISA KEVActive ExploitationEUVD ExploitedRansomware-linkedAccess Control
Published
14 March 2023
Modified
27 October 2025
KEV Added
14 March 2023
Patch / advisory
CVSS Score v3.1 4.4
Click a component to see what it means
Raw vectorCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:L
EPSS Score 0.78 99.6th percentile
Risk Priority 75 floored blend · peak EPSS

CVSS and EPSS are reproduced from their sources (NVD, FIRST EPSS). Risk Priority is our own derived reading, not an NVD score.

Summary

CVE-2023-24880 is a medium-severity Incorrect Authorization (CWE-863) vulnerability in Microsoft Windows 10 1607. Its CVSS base score is 4.4 (Medium).

Operationally, ranked in the top 0.4% of CVEs by exploit likelihood; CISA has added it to the Known Exploited Vulnerabilities catalog.

Deeper analysis AI-assisted summary

Synthesised by an AI model from the NVD description and linked references — a reading aid, not an authoritative source.

Windows SmartScreen contains a security feature bypass vulnerability tracked as CVE-2023-24880. The flaw resides in the SmartScreen component of Windows and received a CVSS 4.4 rating reflecting local attack vector, low complexity, no required privileges, and user interaction. It is also associated with CWE-863, indicating improper authorization checks that allow the security control to be circumvented.

An attacker with the ability to execute code on a target system can present specially crafted content that SmartScreen fails to evaluate correctly. Successful exploitation permits limited tampering with integrity and availability properties while bypassing the normal warning or blocking behavior that SmartScreen is intended to enforce.

Microsoft’s security update guide provides patches addressing the issue, and the vulnerability appears in CISA’s catalog of known exploited vulnerabilities, confirming that remediation guidance and fixes have been published through official channels.

EPSS scores for the CVE rose from lower values to a recorded peak of 0.7729 on 2025-12-11 before receding to the current 0.7464, indicating measurable post-disclosure exploitation interest that warrants attention from defenders.

OWASP Top 10 for Web (2025)

EU & UK References

Vulnerability Data

Windows SmartScreen Security Feature Bypass Vulnerability

CWE(s)
KEV Date Added
14 March 2023

Related Threats

CVEs Like This One

CVE-2022-41091Same product: Microsoft Windows 10 1607both on KEV
CVE-2023-32049Same product: Microsoft Windows 10 1607both on KEV
CVE-2023-29360Same product: Microsoft Windows 10 1607both on KEV
CVE-2023-28249Same product: Microsoft Windows 10 1607
CVE-2022-41049Same product: Microsoft Windows 10 1607both on KEV
CVE-2022-44698Same product: Microsoft Windows 10 1607both on KEV
CVE-2023-28270Same product: Microsoft Windows 10 1809
CVE-2023-28252Same product: Microsoft Windows 10 1607both on KEV
CVE-2023-21823Same product: Microsoft Windows 10 1607both on KEV
CVE-2023-23376Same product: Microsoft Windows 10 1607both on KEV

Affected Assets

microsoft
windows 10 1607
≤ 10.0.14393.5786
microsoft
windows 10 1809
≤ 10.0.17763.4131
microsoft
windows 10 20h2
≤ 10.0.19042.2728
microsoft
windows 10 21h2
≤ 10.0.19044.2728
microsoft
windows 10 22h2
≤ 10.0.19045.2728
microsoft
windows 11 21h2
≤ 10.0.22000.1696
microsoft
windows 11 22h2
≤ 10.0.22000.1413
microsoft
windows server 2016
≤ 10.0.14393.5786
microsoft
windows server 2019
≤ 10.0.17763.4131
microsoft
windows server 2022
≤ 10.0.20348.1602

Mitigating Controls

Likely Mitigating Controls AI

Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.

addresses: CWE-863

Periodic review and update of procedures reduces incorrect authorization implementations over time.

addresses: CWE-863

Supervision identifies cases where authorization logic incorrectly permits unauthorized actions.

addresses: CWE-863

Defining permitted attribute values and auditing modifications reduces the chance of incorrect authorization outcomes due to tampered or missing labels.

addresses: CWE-863

The authorization process and usage restrictions help prevent incorrect authorization for remote access types.

addresses: CWE-863

Establishing configuration and connection requirements helps ensure correct rather than incorrect authorization for wireless access.

addresses: CWE-863

Establishing connection authorization processes for mobile devices helps ensure authorization decisions are correctly implemented rather than incorrect.

addresses: CWE-863

Monitoring account use, notifying on changes, and reviewing accounts for compliance corrects incorrect authorization assignments.

addresses: CWE-863

Ensures authorization decisions for external system use are correctly implemented and enforced.

Mitigating Controls (ISO/IEC 27001:2022 Annex A) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→ISO cross-walk (authority under review) — links open the control.

blocks

Requiring consistency between access rights and classification plus formal approval steps ensures that the authorization logic correctly distinguishes between entities that should and should not be granted access.

blocks

A.5.18's provisioning, revocation, review and adjustment of access rights (incl. before role changes/termination, with segregation and owner approval) directly stops incorrect authorization decisions from being exploitable in the vast majority of cases; the bounded remainder is incorrectness inside the authorization logic itself (e.g. flawed conditional or missing check) rather than rights that were wrongly granted.

blocks

A.8.3 directly mandates restricting access to information per policies via configuration, identity/group controls, isolation, and dynamic techniques that enforce correct authorization decisions, addressing most but not all slices of CWE-863 (e.g., remainder in non-access-decision authorization errors like timing or environmental factors).

Hardening callouts derived

DISA STIG baselines are authored against specific weaknesses. Where this CVE cites a broad weakness class, the mapping is not asserted at that abstraction (owner ruling, 2026-09-25: grade only at Base and below), so no rule is shown here rather than a rule shown against the wrong grain.

  • No fine-grained STIG row for CWE-863, a class-level weakness, and none of its children carries one either.

References