Is CVE-2021-27924 in the CISA KEV catalog?

No. CVE-2021-27924 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2021-27924?

CVE-2021-27924 has a CVSS v3 base score of 5.9 (MEDIUM).

What is the EPSS score for CVE-2021-27924?

CVE-2021-27924 has an EPSS score of 0.55% (42th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2021-27924?

Upgrade couchbase server to 6.6.2 or later.

CVE & CISA-KEV Catalog

CVE-2021-27924

MEDIUM

5.9

CVSS v3

NVD

Description

An issue was discovered in Couchbase Server 6.x through 6.6.1. The Couchbase Server UI is insecurely logging session cookies in the logs. This allows for the impersonation of a user if the log files are obtained by an attacker before a session cookie expires.

CWE-319

How to fix

Remediation Available

couchbase serverNVD

Affected:>= 6.0.0, < 6.6.2Fixed in:6.6.2CVE-2021-27924derived 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 ComplexityHigh

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityNone

AvailabilityNone

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

Exploit Intelligence

0.55%probability of exploitation in 30 days

42ndpercentile

Moderate risk: more likely to be exploited than 42% of all known CVEs.

References

Vendor Advisory2

Related Vulnerabilities

Other CWE-319 vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2018-12710	High	8.0	77%	-	-
CVE-2024-25735	Critical	9.1	51%	-	Fix
CVE-2019-3993	High	7.5	46%	-	-
CVE-2017-5259	High	8.8	39%	-	-
CVE-2016-5649	Critical	9.8	27%	-	-
CVE-2021-39341	High	8.2	23%	-	-

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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.