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CVE-2026-1677

🗓️ 11 May 2026 05:52:12Reported by zephyrType 
cve
 cve
🔗 web.nvd.nist.gov👁 9 Views

TLS 1.2 may be negotiated on TLS 1.3 Zephyr sockets when both versions are enabled; workaround: restrict TLS_CIPHERSUITE_LIST to TLS 1.3 ciphers.

Related
Affected
Refs
ReporterTitlePublishedViews
Family
ATTACKERKB
CVE-2026-1677
11 May 202605:52
attackerkb
Circl
CVE-2026-1677
11 May 202606:37
circl
CNNVD
Zephyr 安全漏洞
11 May 202600:00
cnnvd
Cvelist
CVE-2026-1677 net: TLS 1.2 connections allowed on TLS 1.3 sockets
11 May 202605:52
cvelist
EUVD
EUVD-2026-29033
11 May 202605:52
euvd
NVD
CVE-2026-1677
11 May 202606:16
nvd
Positive Technologies
PT-2026-39574
11 May 202600:00
ptsecurity
RedhatCVE
CVE-2026-1677
5 Jun 202619:34
redhatcve
Vulnrichment
CVE-2026-1677 net: TLS 1.2 connections allowed on TLS 1.3 sockets
11 May 202605:52
vulnrichment
[
  {
    "defaultStatus": "unaffected",
    "packageName": "Zephyr",
    "product": "Zephyr",
    "repo": "https://github.com/zephyrproject-rtos/zephyr",
    "vendor": "zephyrproject-rtos",
    "versions": [
      {
        "lessThanOrEqual": "4.3",
        "status": "affected",
        "version": "*",
        "versionType": "git"
      }
    ]
  }
]

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13 May 2026 15:25Current
5.8Medium risk
Vulners AI Score5.8
CVSS 3.15.3
EPSS0.00047
SSVC
9