Is CVE-2022-22638 in the CISA KEV catalog?

No. CVE-2022-22638 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2022-22638?

CVE-2022-22638 has a CVSS v3 base score of 6.5 (MEDIUM).

What is the EPSS score for CVE-2022-22638?

CVE-2022-22638 has an EPSS score of 1.86% (77th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2022-22638?

Upgrade ipados to 15.4 or later. Fixes are available for 6 affected products.

CVE & CISA-KEV Catalog

CVE-2022-22638

MEDIUMEPSS 77th pctl

6.5

CVSS v3

NVD

Description

A null pointer dereference was addressed with improved validation. This issue is fixed in tvOS 15.4, iOS 15.4 and iPadOS 15.4, macOS Big Sur 11.6.5, Security Update 2022-003 Catalina, watchOS 8.5, macOS Monterey 12.3. An attacker in a privileged position may be able to perform a denial of service attack.

CWE-476NULL Pointer Dereference

How to fix

Remediation Available

ipadosNVD

Affected:< 15.4Fixed in:15.4CVE-2022-22638derived from NVD

iphone osNVD

Affected:< 15.4Fixed in:15.4CVE-2022-22638derived from NVD

mac os xNVD

Affected:>= 10.15, < 10.15.7Fixed in:10.15.7CVE-2022-22638derived from NVD

macosNVD

Affected:>= 12.0, < 12.3Fixed in:12.3CVE-2022-22638derived from NVD

tvosNVD

Affected:< 15.4Fixed in:15.4CVE-2022-22638derived from NVD

watchosNVD

Affected:< 8.5Fixed in:8.5CVE-2022-22638derived from NVD

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 VectorNetwork

Attack ComplexityLow

Privileges RequiredLow

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityNone

IntegrityNone

AvailabilityHigh

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

Exploit Intelligence

1.86%probability of exploitation in 30 days

77thpercentile

Elevated risk: more likely to be exploited than 77% of all known CVEs.

References

Vendor Advisory6

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 2024-11-21.