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CVE-2021-41380

🗓️ 09 Jan 2026 11:35:55Reported by redhat.comType 
redhatcve
 redhatcve
🔗 access.redhat.com👁 3 Views

RealVNC Viewer 6.21.406 may crash and hang from crafted server data via the remote framebuffer protocol; requires social engineering.

Related
Refs
ReporterTitlePublishedViews
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Circl
CVE-2021-41380
18 Sep 202100:23
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RealVNC Viewer 输入验证错误漏洞
17 Sep 202100:00
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CVE
CVE-2021-41380
17 Sep 202119:14
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Cvelist
CVE-2021-41380
17 Sep 202119:14
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CVE-2021-41380
17 Sep 202120:15
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Prion
Memory corruption
17 Sep 202120:15
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Positive Technologies
PT-2021-23282 · Realvnc · Realvnc Viewer
17 Sep 202100:00
ptsecurity

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09 Jan 2026 11:35Current
6.6Medium risk
Vulners AI Score6.6
CVSS 24.3
CVSS 3.16.5
EPSS0.00285
3