Is CVE-2021-30881 in the CISA KEV catalog?

No. CVE-2021-30881 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2021-30881?

CVE-2021-30881 has a CVSS v3 base score of 7.8 (HIGH).

What is the EPSS score for CVE-2021-30881?

CVE-2021-30881 has an EPSS score of 1.21% (65th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2021-30881?

Upgrade ipados to 15.1 or later. Fixes are available for 6 affected products.

CVE & CISA-KEV Catalog

CVE-2021-30881

HIGH

7.8

CVSS v3

NVD

Description

An input validation issue was addressed with improved memory handling. This issue is fixed in iOS 15.1 and iPadOS 15.1, macOS Monterey 12.0.1, tvOS 15.1, watchOS 8.1, Security Update 2021-007 Catalina, macOS Big Sur 11.6.1. Unpacking a maliciously crafted archive may lead to arbitrary code execution.

CWE-20Improper Input Validation

How to fix

Remediation Available

ipadosNVD

Affected:< 15.1Fixed in:15.1CVE-2021-30881derived from NVD

iphone osNVD

Affected:< 15.1Fixed in:15.1CVE-2021-30881derived from NVD

mac os xNVD

Affected:< 10.15.7Fixed in:10.15.7CVE-2021-30881derived from NVD

macosNVD

Affected:>= 11.0, < 11.6.1Fixed in:11.6.1CVE-2021-30881derived from NVD

tvosNVD

Affected:< 15.1Fixed in:15.1CVE-2021-30881derived from NVD

watchosNVD

Affected:< 8.1Fixed in:8.1CVE-2021-30881derived 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

1.21%probability of exploitation in 30 days

65thpercentile

Moderate risk: more likely to be exploited than 65% of all known CVEs.

References

Other references6

Related Vulnerabilities

Other CWE-20 (Improper Input Validation) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2024-3400	Critical	10.0	100%	KEV + Ransom	-
CVE-2021-45105	Medium	5.9	100%	-	Fix
CVE-2021-44228	Critical	10.0	100%	KEV + Ransom	Fix
CVE-2021-21985	Critical	9.8	100%	KEV + Ransom	Fix
CVE-2018-7600	Critical	9.8	100%	KEV + Ransom	Fix
CVE-2020-3452	High	7.5	100%	KEV	Fix

Embed a live status badge for CVE-2021-30881

Markdown

[![CVE-2021-30881](https://tridentstack.com/cve/badge/CVE-2021-30881.svg)](https://tridentstack.com/cve/CVE-2021-30881)

HTML

<a href="https://tridentstack.com/cve/CVE-2021-30881"><img src="https://tridentstack.com/cve/badge/CVE-2021-30881.svg" alt="CVE-2021-30881"></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.