Is CVE-2021-30844 in the CISA KEV catalog?

No. CVE-2021-30844 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2021-30844?

CVE-2021-30844 has a CVSS v3 base score of 7.5 (HIGH).

What is the EPSS score for CVE-2021-30844?

CVE-2021-30844 has an EPSS score of 1.74% (75th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2021-30844?

Upgrade macos to 11.6.1 or later.

CVE & CISA-KEV Catalog

CVE-2021-30844

HIGHEPSS 75th pctl

7.5

CVSS v3

NVD

Description

A logic issue was addressed with improved state management. This issue is fixed in Security Update 2021-005 Catalina, macOS Big Sur 11.6. A remote attacker may be able to leak memory.

CWE-401Missing Release of Memory (Memory Leak)

How to fix

Remediation Available

macosNVD

Affected:< 11.6.1Fixed in:11.6.1CVE-2021-30844derived 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 RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityNone

AvailabilityNone

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

Exploit Intelligence

1.74%probability of exploitation in 30 days

75thpercentile

Elevated risk: more likely to be exploited than 75% of all known CVEs.

References

Vendor Advisory4

Related Vulnerabilities

Other CWE-401 (Missing Release of Memory (Memory Leak)) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2020-13934	High	7.5	64%	-	Fix
CVE-2016-6304	High	7.5	63%	-	Fix
CVE-2019-12265	Medium	5.3	55%	-	Fix
CVE-2001-0136	Medium	5.0	45%	-	-
CVE-2016-4232	High	7.5	36%	-	-
CVE-2001-0543	Medium	5.0	21%	-	-

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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.