Is CVE-2021-22923 in the CISA KEV catalog?

No. CVE-2021-22923 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2021-22923?

CVE-2021-22923 has a CVSS v3 base score of 5.3 (MEDIUM).

What is the EPSS score for CVE-2021-22923?

CVE-2021-22923 has an EPSS score of 1.84% (76th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2021-22923?

Upgrade curl on debian 12 to 7.79.1-1 or later. Fixes are available for 2 affected products.

CVE & CISA-KEV Catalog

CVE-2021-22923

MEDIUMEPSS 76th pctl

5.3

CVSS v3

NVD

Description

When curl is instructed to get content using the metalink feature, and a user name and password are used to download the metalink XML file, those same credentials are then subsequently passed on to each of the servers from which curl will download or try to download the contents from. Often contrary to the user's expectations and intentions and without telling the user it happened.

CWE-319 CWE-522

How to fix

Remediation Available

curlDebian

Fixed in:7.79.1-1CVE-2021-22923

UniversalForwarderWindows application

Affected:8.2.0 8.2.12Fixed in:8.2.12Splunk, Inc.

Affected:9.0.0 9.0.6Fixed in:9.0.6Splunk, Inc.

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 InteractionRequired

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityNone

AvailabilityNone

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

Exploit Intelligence

1.84%probability of exploitation in 30 days

76thpercentile

Elevated risk: more likely to be exploited than 76% of all known CVEs.

References

Patch2

Exploit1

hackerone.com

Third-Party Advisory3

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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.