Is CVE-2021-30834 in the CISA KEV catalog?

No. CVE-2021-30834 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2021-30834?

CVE-2021-30834 has a CVSS v3 base score of 7.8 (HIGH).

What is the EPSS score for CVE-2021-30834?

CVE-2021-30834 has an EPSS score of 1.05% (60th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2021-30834?

Upgrade ipados to 14.8 or later. Fixes are available for 6 affected products.

CVE & CISA-KEV Catalog

CVE-2021-30834

HIGH

7.8

CVSS v3

NVD

Description

A logic issue was addressed with improved state management. This issue is fixed in iOS 14.8 and iPadOS 14.8, tvOS 15, iOS 15 and iPadOS 15, watchOS 8, Security Update 2021-007 Catalina. Processing a malicious audio file may result in unexpected application termination or arbitrary code execution.

How to fix

Remediation Available

ipadosNVD

Affected:< 14.8Fixed in:14.8CVE-2021-30834derived from NVD

iphone osNVD

Affected:< 14.8Fixed in:14.8CVE-2021-30834derived from NVD

mac os xNVD

Affected:< 10.15.7Fixed in:10.15.7CVE-2021-30834derived from NVD

macosNVD

Affected:>= 11.0, < 11.6Fixed in:11.6CVE-2021-30834derived from NVD

tvosNVD

Affected:< 15.0Fixed in:15.0CVE-2021-30834derived from NVD

watchosNVD

Affected:< 8.0Fixed in:8.0CVE-2021-30834derived 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

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

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

Exploit Intelligence

1.05%probability of exploitation in 30 days

60thpercentile

Moderate risk: more likely to be exploited than 60% of all known CVEs.

References

Vendor Advisory6

Embed a live status badge for CVE-2021-30834

Markdown

[![CVE-2021-30834](https://tridentstack.com/cve/badge/CVE-2021-30834.svg)](https://tridentstack.com/cve/CVE-2021-30834)

HTML

<a href="https://tridentstack.com/cve/CVE-2021-30834"><img src="https://tridentstack.com/cve/badge/CVE-2021-30834.svg" alt="CVE-2021-30834"></a>

Find and fix vulnerabilities across your fleet

TridentStack Control continuously scans your Windows, macOS, and Linux fleet for known vulnerabilities, prioritizes them by severity and active exploitation, and patches them automatically.

Start free

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.