Is CVE-2021-41246 in the CISA KEV catalog?

No. CVE-2021-41246 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2021-41246?

CVE-2021-41246 has a CVSS v3 base score of 4.6 (MEDIUM).

What is the EPSS score for CVE-2021-41246?

CVE-2021-41246 has an EPSS score of 0.89% (55th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2021-41246?

Upgrade express openid connect to 2.5.2 or later.

CVE & CISA-KEV Catalog

CVE-2021-41246

MEDIUM

4.6

CVSS v3

NVD

Description

Express OpenID Connect is express JS middleware implementing sign on for Express web apps using OpenID Connect. Versions before and including `2.5.1` do not regenerate the session id and session cookie when user logs in. This behavior opens up the application to various session fixation vulnerabilities. Versions `2.5.2` contains a patch for this issue.

CWE-384

How to fix

Remediation Available

express openid connectNVD

Affected:>= 2.3.0, < 2.5.2Fixed in:2.5.2CVE-2021-41246derived 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 RequiredLow

User InteractionRequired

ScopeUnchanged

Impact

ConfidentialityLow

IntegrityLow

AvailabilityNone

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

Exploit Intelligence

0.89%probability of exploitation in 30 days

55thpercentile

Moderate risk: more likely to be exploited than 55% of all known CVEs.

References

Patch1

github.com

Third-Party Advisory2

Related Vulnerabilities

Other CWE-384 vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2018-11714	Critical	9.8	37%	-	-
CVE-2018-18925	Critical	9.8	32%	-	-
CVE-2019-12258	High	7.5	23%	-	Fix
CVE-2018-17199	High	7.5	20%	-	Fix
CVE-2019-10008	High	8.8	20%	-	-
CVE-2024-50339	Medium	5.3	20%	-	Fix

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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.