CVE-2026-39824

Invoking integer overflow in NewNTUnicodeString in golang.org/x/sys/windows

CVE-2026-39824 is fixed in 3 products on 1 platform, first by OPENSUSE-SU-2026:21436-1, released July 22, 2026. It is not reported as exploited. Patch Radar priority: Routine.

Routine

CVSS

3.3

Low

Exploitation

None reported

No vendor assessment

CISA KEV

Not listed

Not in the Known Exploited Vulnerabilities catalog

EPSS

0.0011

1st percentile

GO-2026-5024 * GO-2026-5025 CVE-2026-42506 * GO-2026-5026 CVE-2026-39821 * GO-2026-5027 CVE-2026-42502 * GO-2026-5028 CVE-2026-25680 * GO-2026-5029 CVE-2026-25681 * GO-2026-5030 CVE-2026-27136 - Update to version 0.0.20260522T020834 2026-05-22T02:08:34Z. * GO-2025-3548 CVE-2024-12886 GHSA-v464-r2r9-www7 * GO-2026-4951 CVE-2026-35601 GHSA-2g7h-7rqr-9p4r * GO-2026-4952 CVE-2026-35595 GHSA-2vq4-854f-5c72 * GO-2026-4953 CVE-2026-40188 GHSA-2943-crp8-38xx * GO-2026-4963 CVE-2026-41070 GHSA-246w-jgmq-88fg * GO-2026-4964 CVE-2026-41176 GHSA-25qr-6mpr-f7qx * GO-2026-4965 CVE-2026-41646 GHSA-29rg-wmcw-hpf4 * GO-2026-4966 CVE-2026-41644 GHSA-29v9-frvh-c426 * GO-2026-4967 CVE-2026-42072 GHSA-2hp7-65r3-wv54 * GO-2026-4969 CVE-2026-32934 GHSA-2wpx-qpw2-g5h5 * GO-2026-4983 GHSA-28xx-pppm-vqff * GO-2026-4988 CVE-2026-42300 GHSA-2g9v-7mr5-fgjg * GO-2026-4989 GHSA-2ccx-cjjh-r2j8 * GO-2026-4990 CVE-2026-42592 GHSA-2pmr-289p-44r3 * GO-2026-4991 GHSA-258c-965c-p3hc * GO-2026-4992 CVE-2026-44670 GHSA-2h64…

Where it's fixed

Product	Fixed in	Fix	Released
Linux
govulncheck-vulndb · opensuse-leap 16.0	0.0.20260723T184607-160000.1.1	OPENSUSE-SU-2026:21483-1	Jul 30, 2026
keybase-client · opensuse-leap 16.0	6.6.3-bp160.2.1	OPENSUSE-SU-2026:21492-1	Jul 29, 2026
rclone · opensuse-leap 16.0	1.74.4-bp160.1.1	OPENSUSE-SU-2026:21436-1	Jul 22, 2026

Details

Published
May 27, 2026
Weakness
Integer Overflow or Wraparound
Vendor advisory
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-39824

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