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CVE-2026-40279 BACnet Stack: Undefined-behavior signed left shift in `decode_signed32()`

🗓️ 21 Apr 2026 16:29:16Reported by GitHub_MType 
cvelist
 cvelist
🔗 www.cve.org👁 29 Views

CVE-2026-40279: decode_signed32 causes undefined behavior on high-bit input bytes; fixed in 1.4.3.

Related
Affected
Refs
ReporterTitlePublishedViews
Family
ATTACKERKB
CVE-2026-40279
21 Apr 202616:29
attackerkb
CNNVD
BACnet Stack 安全漏洞
21 Apr 202600:00
cnnvd
CVE
CVE-2026-40279
21 Apr 202616:29
cve
EUVD
EUVD-2026-24166
21 Apr 202616:29
euvd
NVD
CVE-2026-40279
21 Apr 202617:16
nvd
Positive Technologies
PT-2026-34009
21 Apr 202600:00
ptsecurity
RedhatCVE
CVE-2026-40279
5 Jun 202619:45
redhatcve
Snyk
Reliance on Undefined, Unspecified, or Implementation-Defined Behavior
22 Apr 202617:06
snyk
Vulnrichment
CVE-2026-40279 BACnet Stack: Undefined-behavior signed left shift in `decode_signed32()`
21 Apr 202616:29
vulnrichment
[
  {
    "vendor": "bacnet-stack",
    "product": "bacnet-stack",
    "versions": [
      {
        "version": "< 1.4.3",
        "status": "affected"
      }
    ]
  }
]

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