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CVE-2026-46243 smb: client: reject userspace cifs.spnego descriptions

🗓️ 01 Jun 2026 16:22:29Reported by LinuxType 
vulnrichment
 vulnrichment🔗 github.com👁 18 Views

Kernel SMB client now rejects userspace cifs.spnego descriptions unless using private spnego_cred.

Related
Affected
Refs
ReporterTitlePublishedViews
Family
githubexploit
GithubExploit		Exploit for CVE-2026-46243
3 Jun 202600:15
–githubexploit
githubexploit
GithubExploit		CIFSwitch
28 May 202605:38
–githubexploit
githubexploit
GithubExploit		Exploit for CVE-2026-46243
2 Jun 202611:39
–githubexploit
githubexploit
GithubExploit		Exploit for CVE-2026-46243
2 Jun 202611:39
–githubexploit
ibm
IBM Security Bulletins		Security Bulletin: IBM Guardium Data Protection is affected by multiple vulnerabilities
7 Sep 202606:51
–ibm
attackerkb
attackerkb		CVE-2026-46243
1 Jun 202616:22
–attackerkb
nessus
Tenable Nessus		Amazon Linux 2023 : bpftool6.12, kernel6.12, kernel6.12-devel (ALAS2023-2026-1863)
22 Jun 202600:00
–nessus
nessus
Tenable Nessus		Amazon Linux 2023 : bpftool6.18, kernel6.18, kernel6.18-devel (ALAS2023-2026-1864)
22 Jun 202600:00
–nessus
nessus
Tenable Nessus		Amazon Linux 2023 : bpftool, kernel, kernel-devel (ALAS2023-2026-1865)
22 Jun 202600:00
–nessus
nessus
Tenable Nessus		Amazon Linux 2 : kernel, --advisory ALAS2-2026-3374 (ALAS-2026-3374)
22 Jun 202600:00
–nessus
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05 Aug 2026 12:30Current
5.8Medium risk
Vulners AI Score5.8
CVSS 3.17.1
EPSS0.00377
SSVC
linux kernelkey handlingrequest key mechanismupcall input fields
18