CVE-2026-45586

HIGH

Published Jun 9, 2026 Modified Jun 11, 2026 CWE-59

Description

Improper link resolution before file access ('link following') in Windows Collaborative Translation Framework allows an authorized attacker to elevate privileges locally.

CVSS v3.1 Score

7.8

HIGH

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS — Exploit Prediction

0.0303

Probability of exploitation

0.86%

Percentile rank

EPSS estimates the probability that this vulnerability will be exploited in the wild within the next 30 days. A higher score means more likely to be exploited.

Weakness Type (CWE)

CWE-59 CWE-59

Affected Products

Vendor	Product	Versions
microsoft	windows_10_1607	< 10.0.14393.9234
microsoft	windows_10_1607	< 10.0.14393.9234
microsoft	windows_10_1809	< 10.0.17763.8880
microsoft	windows_10_1809	< 10.0.17763.8880
microsoft	windows_10_21h2	< 10.0.19044.7417
microsoft	windows_10_21h2	< 10.0.19044.7417
microsoft	windows_10_21h2	< 10.0.19044.7417
microsoft	windows_10_22h2	< 10.0.19045.7417
microsoft	windows_10_22h2	< 10.0.19045.7417
microsoft	windows_10_22h2	< 10.0.19045.7417
microsoft	windows_11_23h2	< 10.0.22631.7219
microsoft	windows_11_23h2	< 10.0.22631.7219
microsoft	windows_11_24h2	< 10.0.26100.8655
microsoft	windows_11_24h2	< 10.0.26100.8655
microsoft	windows_11_25h2	< 10.0.26200.8655
microsoft	windows_11_25h2	< 10.0.26200.8655
microsoft	windows_11_26h1	< 10.0.28000.2269
microsoft	windows_11_26h1	< 10.0.28000.2269
microsoft	windows_server_2012	All
microsoft	windows_server_2012	All
microsoft	windows_server_2016	< 10.0.14393.9234
microsoft	windows_server_2019	< 10.0.17763.8880
microsoft	windows_server_2022	< 10.0.20348.5256
microsoft	windows_server_2025	< 10.0.26100.32995

References

Advisories & Patches

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-45586

Frequently Asked Questions

What is CVE-2026-45586? +

Improper link resolution before file access ('link following') in Windows Collaborative Translation Framework allows an authorized attacker to elevate privileges locally. It has a CVSS v3.1 base score of 7.8 (HIGH).

How severe is CVE-2026-45586? +

CVE-2026-45586 has a CVSS v3.1 score of 7.8 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching. The EPSS score is 0.0303, placing it in the 1th percentile for exploitation probability.

What products are affected by CVE-2026-45586? +

CVE-2026-45586 affects products from microsoft, specifically: windows_10_1607, windows_10_1809, windows_10_21h2, windows_10_22h2, windows_11_23h2, windows_11_24h2, windows_11_25h2, windows_11_26h1, windows_server_2012, windows_server_2016, windows_server_2019, windows_server_2022, windows_server_2025. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2026-45586? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

Related Vulnerabilities

CVE-2025-30371

Metabase is a business intelligence and embedded analytics tool. Versions prior to v0.52.16.4, v1.52.16.4, v0.53.8, and v1.53.8 are vulnerable to …

CVE-2025-4211

Improper Link Resolution Before File Access ('Link Following') vulnerability in QFileSystemEngine in the Qt corelib module on Windows which potentially …

CVE-2025-2102

Improper Link Resolution Before File Access ('Link Following') vulnerability in HYPR Passwordless on Windows allows Privilege Escalation.This issue affects HYPR …

CVE-2025-52936

Improper Link Resolution Before File Access ('Link Following') vulnerability in yrutschle sslh.This issue affects sslh: before 2.2.2.

CVE-2025-53109

Model Context Protocol Servers is a collection of reference implementations for the model context protocol (MCP). Versions of Filesystem prior …

CVE-2025-7012

An issue in Cato Networks' CatoClient for Linux, before version 5.5, allows a local attacker to escalate privileges to root …