CVE-2023-6237

mediumpriority · track · 1EPSS 0.023 · 83 %ileDEEUNLRUUS
grimoire priorityP3 · Track
Exploitable?
—
no known exploitation
Likely / severe?
2.30% (83rd) EPSS
CVSS 5.9 · medium
Is it mine?
56 products
Check your exposure
Who says so?
7 sources
cnnvd · enisa_euvd · fstec_bdu · cert_bund

EPSS · scored 2026-10-23

Issue summary: Checking excessively long invalid RSA public keys may take a long time. Impact summary: Applications that use the function EVP_PKEY_public_check() to check RSA public keys may experience long delays. Where the key that is being checked has been obtained from an untrusted source this may lead to a Denial of Service. When function EVP_PKEY_public_check() is called on RSA public keys, a computation is done to confirm that the RSA modulus, n, is composite. For valid RSA keys, n is a product of two or more large primes and this computation completes quickly. However, if n is an overly large prime, then this computation would take a long time. An application that calls EVP_PKEY_public_check() and supplies an RSA key obtained from an untrusted source could be vulnerable to a Denial of Service attack. The function EVP_PKEY_public_check() is not called from other OpenSSL functions however it is called from the OpenSSL pkey command line application. For that reason that application is also vulnerable if used with the '-pubin' and '-check' options on untrusted data. The OpenSSL SSL/TLS implementation is not affected by this issue. The OpenSSL 3.0 and 3.1 FIPS providers are affected by this issue.

01

remediations

Vendor fix, mitigation, or workaround guidance, as published by each source.

A vendor fix is available.

02

cvss

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

5.9
010

base score 0–10 · higher = more severe · hover a vector to decode

v3.15.9mediumCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:Hsecondary · CISA US
v3.15.9mediumAV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:Hsecondary · FSTEC (BDU) RU
v3.15.9mediumCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:Hsecondary · ENISA EU
v3.15.9mediumCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:Hsecondaryexploitability 2.2 · impact 3.6
v3.15.9mediumCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:Hsecondary · Siemens ProductCERT DE
v3.15.4mediumCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H/E:Usecondary · CVSS-BT (t0sche)
v3.15.9mediumCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:Hsecondary · NCSC-NL NL
03

ssvc

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

Trackcoordinatorcisa_ssvcUS
04

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-400USCWE-400USCWE-400USCWE-400USCWE-606US
05

affected products (56)

Products and version ranges known to be affected.

showing 20 of 56
06

advisories (16)

Vendor and ecosystem advisories describing this.

  • NCSC-2024-0433Kwetsbaarheden verholpen in Siemens productenNL2024-11-12csaf · ncsc_nlNL

    Siemens heeft kwetsbaarheden verholpen in diverse producten als Mendix, RUGGEDCOM, SCALANCE, SIMATIC en SINEC.

  • NCSC-2025-0061Kwetsbaarheden verholpen in Siemens productenNL2025-02-14csaf · ncsc_nlNL

    Siemens heeft kwetsbaarheden verholpen in diverse producten als APOGEE, Opcenter, RUGGEDCOM, SCALANCE, SIMATIC, SIPROTEC en Teamcenter.

  • SSA-265688SSA-265688: Vulnerabilities in the additional GNU/Linux subsystem of the SIMATIC S7-1500 TM MFP V1.12024-04-09csaf · siemens_psirtDE

    Multiple vulnerabilities have been identified in the additional GNU/Linux subsystem of the SIMATIC S7-1500 TM MFP V1.1. Siemens has released a new version for SIMATIC S7-1500 TM MFP - GNU/Linux subsystem and recommends to update to the latest version. Siemens is preparing further fixes and recommends specific mitigations for products where fixes are not or not yet available. SIMATIC S7-1500 TM MFP V1.1 is no longer maintained and there won't be any update to the CVE list anymore. Please update to the latest version. Note: This SSA advises vulnerabilities for firmware version V1.1 only; for version V1.1.1 refer to SSA-784472.

  • SSA-331112SSA-331112: Multiple Vulnerabilities in SINEC NMS Before V3.0 SP12024-11-12csaf · siemens_psirtDE

    SINEC NMS before V3.0 SP1 is affected by multiple vulnerabilities. Siemens has released a new version for SINEC NMS and recommends to update to the latest version.

  • SSA-769027SSA-769027: Multiple Vulnerabilities fixed in SCALANCE W700 IEEE 802.11ax devices before V3.0.02025-02-11csaf · siemens_psirtDE

    SCALANCE W-700 IEEE 802.11ax family devices are affected by multiple vulnerabilities. Siemens has released new versions for the affected products and recommends to update to the latest versions.

  • SSA-915275SSA-915275: Multiple Vulnerabilities in SINEC INS Before V1.0 SP2 Update 32024-11-12csaf · siemens_psirtDE

    SINEC INS before V1.0 SP2 Update 3 is affected by multiple vulnerabilities. Siemens has released a new version for SINEC INS and recommends to update to the latest version.

  • WID-SEC-W-2024-0093OpenSSL: Schwachstelle ermöglicht Denial of ServiceDeutsch2024-01-15csaf · cert_bundDE

    Ein entfernter, anonymer Angreifer kann eine Schwachstelle in OpenSSL ausnutzen, um einen Denial of Service Angriff durchzuführen.

  • WID-SEC-W-2024-0769IBM Rational Build Forge: Mehrere SchwachstellenDeutsch2024-04-02csaf · cert_bundDE

    Ein entfernter, anonymer oder authentisierter Angreifer kann mehrere Schwachstellen in IBM Rational Build Forge ausnutzen, um beliebigen Programmcode auszuführen, einen Cross-Site-Scripting-Angriff durchzuführen, Informationen offenzulegen, Dateien zu manipulieren oder einen Denial of Service Zustand herbeizuführen.

  • WID-SEC-W-2024-1226Red Hat OpenShift: Mehrere SchwachstellenDeutsch2024-05-22csaf · cert_bundDE

    Ein Angreifer kann mehrere Schwachstellen in Red Hat OpenShift ausnutzen, um Dateien zu manipulieren, einen Denial-of-Service-Zustand zu verursachen, beliebigen Code auszuführen, vertrauliche Informationen offenzulegen, seine Privilegien zu erweitern oder um weitere nicht spezifizierte Angriffe auszuführen.

  • WID-SEC-W-2024-1307Red Hat OpenShift Service Mesh Containers: Mehrere SchwachstellenDeutsch2024-06-06csaf · cert_bundDE

    Ein Angreifer kann mehrere Schwachstellen in Red Hat OpenShift Service Mesh Containers ausnutzen, um Dateien zu manipulieren, einen 'Denial of Service'-Zustand erzuegen, beliebigen Code auszuführen, vertrauliche Informationen offenzulegen oder weitere nicht spezifizierte Angriffe durchzuführen.

  • WID-SEC-W-2024-1488IBM InfoSphere Information Server: Mehrere SchwachstellenDeutsch2024-06-30csaf · cert_bundDE

    Ein entfernter Angreifer kann mehrere Schwachstellen in IBM InfoSphere Information Server ausnutzen, um beliebigen Programmcode auszuführen, einen Cross-Site-Scripting-Angriff durchzuführen, Sicherheitsmaßnahmen zu umgehen, einen Denial-of-Service-Zustand zu erzeugen und vertrauliche Informationen offenzulegen.

  • WID-SEC-W-2026-2912Dell PowerScale OneFS: Mehrere SchwachstellenDeutsch2026-08-18csaf · cert_bundDE

    Ein Angreifer kann mehrere Schwachstellen in Dell PowerScale OneFS ausnutzen, um beliebigen Programmcode auszuführen, um einen Denial of Service Angriff durchzuführen, um Informationen offenzulegen, und um Daten zu manipulieren.

  • ICSA-24-102-01Siemens SIMATIC S7-1500 TM MFP2024-04-09icsa · cisa_csaf_otUS

    Multiple vulnerabilities have been identified in the additional GNU/Linux subsystem of the SIMATIC S7-1500 TM MFP V1.1. Siemens is preparing fix versions and recommends specific countermeasures for products where fixes are not, or not yet available.

  • ICSA-24-319-04Siemens SINEC NMS2024-11-12icsa · cisa_csaf_otUS

    SINEC NMS before V3.0 SP1 is affected by multiple vulnerabilities. Siemens has released a new version for SINEC NMS and recommends to update to the latest version.

  • ICSA-24-319-08Siemens SINEC INS2024-11-12icsa · cisa_csaf_otUS

    SINEC INS before V1.0 SP2 Update 3 is affected by multiple vulnerabilities. Siemens has released a new version for SINEC INS and recommends to update to the latest version.

  • ICSA-25-044-09Siemens SCALANCE W700 IEEE 802.11ax2025-02-11icsa · cisa_csaf_otUS

    SCALANCE W-700 IEEE 802.11ax family devices are affected by multiple vulnerabilities. Siemens has released new versions for the affected products and recommends to update to the latest versions.

07

also known as (4)

Other names and identifiers for this entity.

08

sources

Which sources assert this record, and when.

cnnvdenisa_euvdfstec_bducert_bundcisa_csaf_otncsc_nlsiemens_psirtNVDCVE.orgMITRE
published 2024-04-25modified 2026-10-14
09

references (21)

External citations — patches, advisories, analysis.

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