Microsoft Patches Windows Paint RCE Flaw
Microsoft fixed an out-of-bounds read vulnerability in Windows Paint that could allow arbitrary code execution under specific conditions.
Sourceadvisories.ncsc.nl — open the original
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- Applies to
- The 1 CVE named below. Whether you run an affected version is not assessed: check the versions the source lists.
- Exploitation
- No exploitation in the wild and no public exploit is recorded for the CVEs named.
NCSC-NL published an advisory describing a patched vulnerability in Microsoft Windows Paint, tracked as CVE-2026-83844. The flaw is an out-of-bounds read (CWE-125) that could allow an attacker to execute arbitrary code on an affected system under specific, unspecified conditions. The CVSS v3 score is 8.1, indicating a significant severity rating from Microsoft/NCSC-NL.
Microsoft has released updates to address the vulnerability. The advisory does not indicate whether this vulnerability has been exploited in the wild, nor does it provide technical details on the exploitation vector or prerequisites. Defenders should apply the available Microsoft update for Windows Paint as part of standard patch management cycles, prioritizing based on CVSS score and exposure of affected systems.
Mentioned in this report
Source reporting: https://advisories.ncsc.nl/2026/ncsc-2026-0470.html
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