Is CVE-2023-20873 actively exploited?

No active exploitation of CVE-2023-20873 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2023-20873 be exploited remotely?

Yes. CVE-2023-20873 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2023-20873?

CVE-2023-20873 has a CVSS score of 9.8 (CRITICAL).

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CRITICAL

CVE-2023-20873

NVD-CWE-noinfoPublished: April 20, 2023· Updated: Jun 17, 2026

9.8

CVSS v3.1

Official Description

In Spring Boot versions 3.0.0 - 3.0.5, 2.7.0 - 2.7.10, and older unsupported versions, an application that is deployed to Cloud Foundry could be susceptible to a security bypass. Users of affected versions should apply the following mitigation: 3.0.x users should upgrade to 3.0.6+. 2.7.x users should upgrade to 2.7.11+. Users of older, unsupported versions should upgrade to 3.0.6+ or 2.7.11+.

NVD Source

Risk Analysis

Spring Boot applications deployed on Cloud Foundry are susceptible to a security bypass vulnerability. This critical flaw, rated 9.8 on the CVSS scale, allows unauthorized access or actions due to improper security controls. It is remotely exploitable without authentication.

There is no evidence of public exploitation or inclusion in the KEV catalog.

Recommended Action

Users of Spring Boot 3.0.x should upgrade to 3.0.6+, and users of 2.7.x should upgrade to 2.7.11+. Unsupported versions should also be updated to these patched releases.

Generated by the CTIWATCH analysis pipeline from this CVE's metadata (CVSS, EPSS, KEV status, exploit intelligence). Verify against vendor advisories before acting.

Technical Analysis

CVE-2023-20873 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 9.8.