Is CVE-2022-50538 in the CISA KEV catalog?

No. CVE-2022-50538 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2022-50538?

CVE-2022-50538 has a CVSS v3 base score of 5.5 (MEDIUM).

What is the EPSS score for CVE-2022-50538?

CVE-2022-50538 has an EPSS score of 0.15% (4th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2022-50538?

Upgrade linux on debian 11 to 5.10.178-1 or later.

CVE & CISA-KEV Catalog

CVE-2022-50538

MEDIUM

5.5

CVSS v3

NVD

Description

In the Linux kernel, the following vulnerability has been resolved: vme: Fix error not catched in fake_init() In fake_init(), __root_device_register() is possible to fail but it's ignored, which can cause unregistering vme_root fail when exit. general protection fault, probably for non-canonical address 0xdffffc000000008c KASAN: null-ptr-deref in range [0x0000000000000460-0x0000000000000467] RIP: 0010:root_device_unregister+0x26/0x60 Call Trace: <TASK> __x64_sys_delete_module+0x34f/0x540 do_syscall_64+0x38/0x90 entry_SYSCALL_64_after_hwframe+0x63/0xcd Return error when __root_device_register() fails.

CWE-476NULL Pointer Dereference

How to fix

Remediation Available

linuxDebian

Fixed in:5.10.178-1CVE-2022-50538

Fixed in:6.1.4-1CVE-2022-50538

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorLocal

Attack ComplexityLow

Privileges RequiredLow

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityNone

IntegrityNone

AvailabilityHigh

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Exploit Intelligence

0.15%probability of exploitation in 30 days

4thpercentile

Low risk: more likely to be exploited than 4% of all known CVEs.

References

Patch9

Related Vulnerabilities

Other CWE-476 (NULL Pointer Dereference) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2023-21758	High	7.5	92%	-	Fix
CVE-2023-21547	High	7.5	88%	-	Fix
CVE-2014-3470	Medium	4.3	86%	-	Fix
CVE-2021-44224	High	8.2	82%	-	Fix
CVE-2016-0742	High	7.5	82%	-	Fix
CVE-2009-1386	Medium	5.0	80%	-	Fix

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-02-26.