Is CVE-2021-1880 in the CISA KEV catalog?

No. CVE-2021-1880 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2021-1880?

CVE-2021-1880 has a CVSS v3 base score of 7.8 (HIGH).

What is the EPSS score for CVE-2021-1880?

CVE-2021-1880 has an EPSS score of 0.97% (58th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2021-1880?

Upgrade macos to 11.3 or later. Fixes are available for 2 affected products.

CVE & CISA-KEV Catalog

CVE-2021-1880

HIGH

7.8

CVSS v3

NVD

Description

This issue was addressed with improved checks. This issue is fixed in macOS Big Sur 11.3, watchOS 7.4. Processing a maliciously crafted image may lead to arbitrary code execution.

How to fix

Remediation Available

macosNVD

Affected:>= 11.0, < 11.3Fixed in:11.3CVE-2021-1880derived from NVD

watchosNVD

Affected:< 7.4Fixed in:7.4CVE-2021-1880derived 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

0.97%probability of exploitation in 30 days

58thpercentile

Moderate risk: more likely to be exploited than 58% of all known CVEs.

References

Vendor Advisory2

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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.