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CVE-2026-3547 wolfSSL: out-of-bounds read (DoS) in ALPN parsing due to incomplete validation

🗓️ 19 Mar 2026 20:20:42Reported by wolfSSLType 
cvelist
 cvelist
🔗 www.cve.org👁 42 Views

CVE-2026-3547 WolfSSL ALPN parsing out-of-bounds read causing DoS in version 5.8.4 and earlier.

Related
Affected
Refs
ReporterTitlePublishedViews
Family
attackerkb
attackerkb
CVE-2026-3547
19 Mar 202620:20
–attackerkb
alpinelinux
AlpineLinux
CVE-2026-3547
19 Mar 202620:20
–alpinelinux
circl
Circl
CVE-2026-3547
19 Mar 202621:22
–circl
cnnvd
CNNVD
wolfSSL (CyaSSL) security vulnerabilities
19 Mar 202600:00
–cnnvd
cve
CVE
CVE-2026-3547
19 Mar 202620:20
–cve
debiancve
Debian CVE
CVE-2026-3547
19 Mar 202620:20
–debiancve
euvd
EUVD
EUVD-2026-13166
19 Mar 202621:30
–euvd
f5
F5 Networks
K000163835: wolfSSL vulnerability CVE-2026-3547
22 Oct 202603:36
–f5
mend
Mend
CVE-2026-3547
19 Mar 202620:20
–mend
nvd
NVD
CVE-2026-3547
19 Mar 202621:17
–nvd
Rows per page
[
  {
    "vendor": "wolfSSL",
    "product": "wolfSSL",
    "platforms": [
      "ALPN-enabled builds (HAVE_ALPN / --enable-alpn)"
    ],
    "versions": [
      {
        "status": "affected",
        "version": "0",
        "lessThan": "5.9.0",
        "versionType": "semver"
      }
    ],
    "defaultStatus": "unaffected"
  }
]

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