Is CVE-2023-20862 in the CISA KEV catalog?

No. CVE-2023-20862 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2023-20862?

CVE-2023-20862 has a CVSS v3 base score of 6.3 (MEDIUM).

What is the EPSS score for CVE-2023-20862?

CVE-2023-20862 has an EPSS score of 0.65% (46th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2023-20862?

Upgrade jenkins on rhel 8 to 0:2.426.3.1706515686-3.el8 or later. Fixes are available for 4 affected products.

CVE & CISA-KEV Catalog

CVE-2023-20862

MEDIUM

6.3

CVSS v3

NVD

Description

In Spring Security, versions 5.7.x prior to 5.7.8, versions 5.8.x prior to 5.8.3, and versions 6.0.x prior to 6.0.3, the logout support does not properly clean the security context if using serialized versions. Additionally, it is not possible to explicitly save an empty security context to the HttpSessionSecurityContextRepository. This vulnerability can keep users authenticated even after they performed logout. Users of affected versions should apply the following mitigation. 5.7.x users should upgrade to 5.7.8. 5.8.x users should upgrade to 5.8.3. 6.0.x users should upgrade to 6.0.3.

CWE-459

How to fix

Remediation Available

jenkinsRed Hat / RHEL

Fixed in:0:2.426.3.1706515686-3.el8RHSA-2024:0778

jenkinsRocky

Fixed in:0:2.426.3.1706515686-3.el8RHSA-2024:0778

jenkins-2-pluginsRocky

Fixed in:0:4.12.1706515741-1.el8RHSA-2024:0778

jenkins-2-pluginsRed Hat / RHEL

Fixed in:0:4.12.1706515741-1.el8RHSA-2024:0778

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 InteractionNone

ScopeUnchanged

Impact

ConfidentialityLow

IntegrityLow

AvailabilityLow

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

Exploit Intelligence

0.65%probability of exploitation in 30 days

46thpercentile

Moderate risk: more likely to be exploited than 46% of all known CVEs.

References

Vendor Advisory1

spring.io

Third-Party Advisory1

security.netapp.com

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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 2025-02-05.