How severe is CVE-2023-20883?

CVE-2023-20883 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2023-20883 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (55th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-20883?

CVE-2023-20883 affects Vmware Spring Boot. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-20883?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2023-20883 published?

CVE-2023-20883 was published on 2023-05-26 and last updated on 2026-06-17.

CVE-2023-20883

CVE-2023-20883 is a high-severity vulnerability in Vmware Spring Boot with a CVSS 3.x base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-400.

Key facts

Severity: High (CVSS 3.x base score 7.5)
EPSS exploit prediction: 1% (55th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-400
Affected product: Vmware Spring Boot
Published: 2023-05-26
Last modified: 2026-06-17

Description

In Spring Boot versions 3.0.0 - 3.0.6, 2.7.0 - 2.7.11, 2.6.0 - 2.6.14, 2.5.0 - 2.5.14 and older unsupported versions, there is potential for a denial-of-service (DoS) attack if Spring MVC is used together with a reverse proxy cache.

Frequently asked questions

What is CVE-2023-20883?: In Spring Boot versions 3.0.0 - 3.0.6, 2.7.0 - 2.7.11, 2.6.0 - 2.6.14, 2.5.0 - 2.5.14 and older unsupported versions, there is potential for a denial-of-service (DoS) attack if Spring MVC is used together with a reverse proxy cache.
How severe is CVE-2023-20883?: CVE-2023-20883 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2023-20883 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (55th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-20883?: CVE-2023-20883 affects Vmware Spring Boot. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-20883?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2023-20883 published?: CVE-2023-20883 was published on 2023-05-26 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:vmware:spring_boot:*:*:*:*:*:*:*:*

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