CVE-2023-20883

highpriority · track · 30EPSS 0.009 · 60 %ileDEEUUS
grimoire priorityP2 · Scheduled
Exploitable?
—
no known exploitation
Likely / severe?
0.91% (60th) EPSS
CVSS 7.5 · high
Is it mine?
22 products
Check your exposure
Who says so?
5 sources
cnnvd · enisa_euvd · cert_bund · nvd

EPSS · scored 2026-10-27

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.

01

cvss

Technical severity, 0–10. One row per scoring source.

7.5
010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 6.9–7.5

v3.17.5highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Hprimary · NVD / NIST USexploitability 3.9 · impact 3.6
v3.17.5highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Hsecondary · ENISA EU
v3.17.5highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Hsecondaryexploitability 3.9 · impact 3.6
v3.17.5highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Hsecondary · OSV
v3.16.9mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:Usecondary · CVSS-BT (t0sche)
02

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Exploitation: none · Automatable: yes · Technical Impact: partialcoordinatorcisa_ssvcUS
03

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-400USprimaryCWE-400US
04

affected products (22)

Products and version ranges known to be affected.

showing 20 of 22
05

advisories (6)

Vendor and ecosystem advisories describing this.

  • WID-SEC-W-2023-1247VMware Tanzu Spring Boot: Schwachstelle ermöglicht Denial of ServiceDeutsch2023-05-18csaf · cert_bundDE

    Ein entfernter, anonymer Angreifer kann eine Schwachstelle in VMware Tanzu Spring Boot ausnutzen, um einen Denial of Service Angriff durchzuführen.

  • WID-SEC-W-2023-2675Oracle Financial Services Applications: Mehrere SchwachstellenDeutsch2023-10-17csaf · cert_bundDE

    Ein entfernter, anonymer oder authentisierter Angreifer kann mehrere Schwachstellen in Oracle Financial Services Applications ausnutzen, um die Vertraulichkeit, Integrität und Verfügbarkeit zu gefährden.

  • WID-SEC-W-2023-2679Oracle Communications: Mehrere SchwachstellenDeutsch2023-10-17csaf · cert_bundDE

    Ein entfernter, anonymer oder authentisierter Angreifer kann mehrere Schwachstellen in Oracle Communications ausnutzen, um die Vertraulichkeit, Integrität und Verfügbarkeit zu gefährden.

  • WID-SEC-W-2024-0107Oracle Communications Applications: Mehrere SchwachstellenDeutsch2024-01-16csaf · cert_bundDE

    Ein entfernter, anonymer Angreifer kann mehrere Schwachstellen in Oracle Communications Applications ausnutzen, um die Vertraulichkeit, Integrität und Verfügbarkeit zu gefährden.

  • WID-SEC-W-2024-0528Dell Data Protection Advisor: Mehrere SchwachstellenDeutsch2024-02-29csaf · cert_bundDE

    Ein Angreifer kann mehrere Schwachstellen in Dell Data Protection Advisor ausnutzen, um beliebigen Code auszuführen, einen Denial-of-Service-Zustand herbeizuführen, Dateien zu manipulieren, vertrauliche Informationen offenzulegen, seine Berechtigungen zu erweitern oder einen nicht spezifizierten Angriff durchzuführen.

  • GHSA-xf96-w227-r7c4Spring Boot Welcome Page Denial of Service2023-05-26ghsa · osvUS

    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. Specifically, an application is vulnerable if all of the conditions are true: * The application has Spring MVC auto-configuration enabled. This is the case by default if Spring MVC is on the classpath. * The application makes use of Spring Boot's welcome page support, either static or templated. * Your application is deployed behind a proxy which caches 404 responses. Your application is NOT vulnerable if any of the following are true: * Spring MVC auto-configuration is disabled. This is true if WebMvcAutoConfiguration is explicitly excluded, if Spring MVC is not on the classpath, or if spring.main.web-application-type is set to a value other than SERVLET. * The application does not use Spring Boot's welcome page support. * You do not have a proxy which caches 404 responses. Affected Spring Products and Versions Spring Boot 3.0.0 to 3.0.6 2.7.0 to 2.7.11 2.6.0 to 2.6.14 2.5.0 to 2.5.14 Older, unsupported versions are also affected Mitigation Users of affected versions should apply the following mitigations: * 3.0.x users should upgrade to 3.0.7+ * 2.7.x users should upgrade to 2.7.12+ * 2.6.x users should upgrade to 2.6.15+ * 2.5.x users should upgrade to 2.5.15+ Users of older, unsupported versions should upgrade to 3.0.7+ or 2.7.12+. Workarounds: configure the reverse proxy not to cache 404 responses and/or not to cache responses to requests to the root (/) of the application.

06

also known as (3)

Other names and identifiers for this entity.

07

sources

Which sources assert this record, and when.

cnnvdenisa_euvdcert_bundnvdosvNVDCVE.orgMITRE
published 2023-05-26modified 2026-06-17
09

references (11)

External citations — patches, advisories, analysis.

scry

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