Is CVE-2021-20834 in the CISA KEV catalog?

No. CVE-2021-20834 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2021-20834?

CVE-2021-20834 has a CVSS v3 base score of 6.1 (MEDIUM).

What is the EPSS score for CVE-2021-20834?

CVE-2021-20834 has an EPSS score of 1.16% (63th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2021-20834?

Upgrade nike to 2.177.1 or later.

CVE & CISA-KEV Catalog

CVE-2021-20834

MEDIUM

6.1

CVSS v3

NVD

Description

Improper authorization in handler for custom URL scheme vulnerability in Nike App for Android versions prior to 2.177 and Nike App for iOS versions prior to 2.177.1 allows a remote attacker to lead a user to access an arbitrary website via the vulnerable App.

CWE-862Missing Authorization

How to fix

Remediation Available

nikeNVD

Affected:< 2.177.1Fixed in:2.177.1CVE-2021-20834derived from NVD

Affected:< 2.177.3.3688Fixed in:2.177.3.3688CVE-2021-20834derived 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 VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionRequired

ScopeChanged

Impact

ConfidentialityLow

IntegrityLow

AvailabilityNone

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

Exploit Intelligence

1.16%probability of exploitation in 30 days

63rdpercentile

Moderate risk: more likely to be exploited than 63% of all known CVEs.

References

Third-Party Advisory1

jvn.jp

Release Notes1

apps.apple.com

Product1

play.google.com

Related Vulnerabilities

Other CWE-862 (Missing Authorization) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2021-39226	Critical	9.8	100%	KEV	Fix
CVE-2022-0543	Critical	10.0	100%	KEV	Fix
CVE-2021-21978	Critical	9.8	99%	-	Fix
CVE-2023-52163	High	8.8	96%	KEV	-
CVE-2022-1329	High	8.8	93%	-	-
CVE-2023-6875	Critical	9.8	90%	-	-

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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.