Out-of-bounds Read in Microsoft Paint

CVE-2026-83844

Out-of-bounds read in Windows Paint allows an unauthorized attacker to execute code over a network.

Vulnerability class: Buffer Overflow

Published 2026-10-13 · last modified 2026-10-13.

CVSS v3 metric

CVSS v3 base score 8.1 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.

Affected products

Microsoft Paint

Weakness classification (CWE)

CWE-125 — Out-of-bounds Read

References

Windows Paint Remote Code Execution Vulnerability (vendor-advisory, patch)

Frequently asked questions

What is CVE-2026-83844?: CVE-2026-83844 is a high-severity vulnerability in Microsoft Paint, classified under Out-of-bounds Read. CVSS score: 8.1/10. Published 2026-10-13.
How severe is CVE-2026-83844?: High severity. CVSS v3 base score is 8.1 out of 10.