Is CVE-2021-30871 in the CISA KEV catalog?

No. CVE-2021-30871 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2021-30871?

CVE-2021-30871 has a CVSS v3 base score of 5.5 (MEDIUM).

What is the EPSS score for CVE-2021-30871?

CVE-2021-30871 has an EPSS score of 0.26% (17th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2021-30871?

Upgrade iphone os to 14.7 or later. Fixes are available for 3 affected products.

CVE & CISA-KEV Catalog

CVE-2021-30871

MEDIUM

5.5

CVSS v3

NVD

Description

This issue was addressed with a new entitlement. This issue is fixed in iOS 14.7, watchOS 7.6, macOS Big Sur 11.5. A local attacker may be able to access analytics data.

How to fix

Remediation Available

iphone osNVD

Affected:< 14.7Fixed in:14.7CVE-2021-30871derived from NVD

macosNVD

Affected:< 11.5Fixed in:11.5CVE-2021-30871derived from NVD

watchosNVD

Affected:< 7.6Fixed in:7.6CVE-2021-30871derived 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 RequiredLow

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityNone

AvailabilityNone

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

Exploit Intelligence

0.26%probability of exploitation in 30 days

17thpercentile

Low risk: more likely to be exploited than 17% 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.