Is CVE-2021-21376 in the CISA KEV catalog?

No. CVE-2021-21376 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2021-21376?

CVE-2021-21376 has a CVSS v3 base score of 6.4 (MEDIUM).

What is the EPSS score for CVE-2021-21376?

CVE-2021-21376 has an EPSS score of 1.46% (70th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2021-21376?

Upgrade omero.web to 5.9.0 or later.

CVE & CISA-KEV Catalog

CVE-2021-21376

MEDIUMEPSS 70th pctl

6.4

CVSS v3

NVD

Description

OMERO.web is open source Django-based software for managing microscopy imaging. OMERO.web before version 5.9.0 loads various information about the current user such as their id, name and the groups they are in, and these are available on the main webclient pages. This represents an information exposure vulnerability. Some additional information being loaded is not used by the webclient and is being removed in this release. This is fixed in version 5.9.0.

CWE-200Information Exposure

How to fix

Remediation Available

omero.webNVD

Affected:< 5.9.0Fixed in:5.9.0CVE-2021-21376derived 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 RequiredLow

User InteractionRequired

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityNone

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

Exploit Intelligence

1.46%probability of exploitation in 30 days

70thpercentile

Elevated risk: more likely to be exploited than 70% of all known CVEs.

References

Patch1

github.com

Vendor Advisory1

openmicroscopy.org

Third-Party Advisory3

Related Vulnerabilities

Other CWE-200 (Information Exposure) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2024-24919	High	8.6	100%	KEV + Ransom	-
CVE-2020-14181	Medium	5.3	100%	-	Fix
CVE-2021-34429	Medium	5.3	99%	-	Fix
CVE-2018-11409	Medium	5.3	98%	-	-
CVE-2021-41277	Critical	10.0	97%	KEV	-
CVE-2016-2183	High	7.5	96%	-	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.