CVE-2022-4543
the Linux Kernel Page Table Isolation (KPTI) vulnerability
Information · A flaw named "EntryBleed" was found in the Linux Kernel Page Table Isolation (KPTI). This issue could allow a local attacker to leak KASLR base via prefetch side-channels based on TLB timing for Intel systems.
MSRC advisory May 11, 2026
Alert details
- Source feed
- Microsoft MSRC
- CVE ID
- CVE-2022-4543
- CWE
- CWE-200CWE-203
- Affected products
- A flaw named "EntryBleed" was found in the Linux Kernel Page Table Isolation (KPTI). This issue could allow a local attacker to leak KASLR base via prefetch side-channels based on TLB timing for Intel systems. · A A flaw named "EntryBleed" was found in the Linux Kernel Page Table Isolation (KPTI). This issue could allow a local attacker to leak KASLR base via prefetch side-channels based on TLB timing for Intel systems. · A
What happened
Information published.
What it means for your business
A A flaw named "EntryBleed" was found in the Linux Kernel Page Table Isolation (KPTI). This issue could allow a local attacker to leak KASLR base via prefetch side-channels based on TLB timing for Intel systems. (CVE-2022-4543) was added to Microsoft’s security update guidance. Information published. PremierePC tracks MSRC advisories for Upstate SC businesses — patch or open a ticket if you need help verifying exposure.
CVSS score
5.5 (Medium)
EPSS probability
0.95%
Sources
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