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CVE-2026-62426: Unrestricted Externally Accessible Lock

🗓️ 28 Jul 2026 00:00:00Reported by Rapid7Type 
rapid7
 rapid7
🔗 www.rapid7.com

Unrestricted lock acquisition in Xen sysctl enables DoS via XSM/Flask permission bypass.

Related
Refs
ReporterTitlePublishedViews
Family
attackerkb
attackerkb
CVE-2026-62427
28 Jul 202612:31
–attackerkb
attackerkb
attackerkb
CVE-2026-62426
28 Jul 202612:31
–attackerkb
circl
Circl
CVE-2026-62426
28 Jul 202615:07
–circl
cve
CVE
CVE-2026-62426
28 Jul 202612:31
–cve
cvelist
Cvelist
CVE-2026-62426 sysctl and platform-op locks open to abuse
28 Jul 202612:31
–cvelist
debian
Debian
[SECURITY] [DSA 6424-1] xen security update
9 Aug 202619:34
–debian
debiancve
Debian CVE
CVE-2026-62426
28 Jul 202612:31
–debiancve
nessus
Tenable Nessus
Debian dsa-6424 : libxen-dev - security update
9 Aug 202600:00
–nessus
nessus
Tenable Nessus
Fedora 43 : xen (2026-9b1af4c793)
11 Aug 202600:00
–nessus
nessus
Tenable Nessus
Fedora 44 : xen (2026-bf1da84dfc)
2 Aug 202600:00
–nessus
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28 Jul 2026 00:00Current
5.9Medium risk
Vulners AI Score5.9
CVSS 3.18.8
EPSS0.0037
SSVC
0