Is CVE-2021-30913 in the CISA KEV catalog?

No. CVE-2021-30913 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2021-30913?

CVE-2021-30913 has a CVSS v3 base score of 5.5 (MEDIUM).

What is the EPSS score for CVE-2021-30913?

CVE-2021-30913 has an EPSS score of 1.59% (73th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2021-30913?

Upgrade mac os x to 10.15.7 or later. Fixes are available for 2 affected products.

CVE & CISA-KEV Catalog

CVE-2021-30913

MEDIUMEPSS 73th pctl

5.5

CVSS v3

NVD

Description

The issue was addressed with improved permissions logic. This issue is fixed in macOS Monterey 12.0.1, macOS Big Sur 11.6.1. An unprivileged application may be able to edit NVRAM variables.

How to fix

Remediation Available

mac os xNVD

Affected:>= 10.15, < 10.15.7Fixed in:10.15.7CVE-2021-30913derived from NVD

macosNVD

Affected:>= 11.0, < 11.6.1Fixed in:11.6.1CVE-2021-30913derived 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 VectorLocal

Attack ComplexityLow

Privileges RequiredNone

User InteractionRequired

ScopeUnchanged

Impact

ConfidentialityNone

IntegrityHigh

AvailabilityNone

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

Exploit Intelligence

1.59%probability of exploitation in 30 days

73rdpercentile

Elevated risk: more likely to be exploited than 73% of all known CVEs.

References

Other references3

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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.