Is CVE-2020-9934 in the CISA KEV catalog?

Yes. CVE-2020-9934 is on the CISA Known Exploited Vulnerabilities list, added 2022-09-08.

What is the CVSS severity of CVE-2020-9934?

CVE-2020-9934 has a CVSS v3 base score of 5.5 (MEDIUM).

What is the EPSS score for CVE-2020-9934?

CVE-2020-9934 has an EPSS score of 3.21% (87th percentile), estimating the probability of exploitation in the next 30 days.

CVE & CISA-KEV Catalog

CVE-2020-9934

MEDIUMCISA KEVEPSS 87th pctl

5.5

CVSS v3

NVD

Description

An issue existed in the handling of environment variables. This issue was addressed with improved validation. This issue is fixed in iOS 13.6 and iPadOS 13.6, macOS Catalina 10.15.6. A local user may be able to view sensitive user information.

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

3.21%probability of exploitation in 30 days

87thpercentile

Elevated risk: more likely to be exploited than 87% of all known CVEs.

Known Exploited Vulnerability (CISA KEV)

Apple iOS, iPadOS, and macOS Input Validation Vulnerability

Apple iOS, iPadOS, and macOS contain an unspecified vulnerability involving input validation which can allow a local attacker to view sensitive user information.

Apply updates per vendor instructions.

Remediation due: 2022-09-29

References

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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 2025-10-23.