CVE-2025-4373
mediumpriority · track · 0EPSS 0.006 · 50 %ileDEEUFRNLRUUSEPSS · scored 2026-10-27
A flaw was found in GLib, which is vulnerable to an integer overflow in the g_string_insert_unichar() function. When the position at which to insert the character is large, the position will overflow, leading to a buffer underwrite.
remediations
Vendor fix, mitigation, or workaround guidance, as published by each source.
A vendor fix is available.
- FixedRUGGEDCOM RST2428P (6GK6242-6PA00)siemens_psirt
Update to V3.3 or later version
https://support.industry.siemens.com/cs/ww/en/view/109997626/ - FixedSCALANCE XC-300/XR-300/XC-400/XR-500WG/XR-500 familysiemens_psirt
See Section Additional Information.
- FixedSCALANCE XCH328 (6GK5328-4TS01-2EC2)siemens_psirt
Update to V3.3 or later version
https://support.industry.siemens.com/cs/ww/en/view/109997626/ - FixedSCALANCE XCM324 (6GK5324-8TS01-2AC2)siemens_psirt
Update to V3.3 or later version
https://support.industry.siemens.com/cs/ww/en/view/109997626/ - FixedSCALANCE XCM328 (6GK5328-4TS01-2AC2)siemens_psirt
Update to V3.3 or later version
https://support.industry.siemens.com/cs/ww/en/view/109997626/ - FixedSCALANCE XCM332 (6GK5332-0GA01-2AC2)siemens_psirt
Update to V3.3 or later version
https://support.industry.siemens.com/cs/ww/en/view/109997626/ - FixedSCALANCE XRH334 (24 V DC, 8xFO, CC) (6GK5334-2TS01-2ER3)siemens_psirt
Update to V3.3 or later version
https://support.industry.siemens.com/cs/ww/en/view/109997626/ - FixedSCALANCE XRM334 (230 V AC, 12xFO) (6GK5334-3TS01-3AR3)siemens_psirt
Update to V3.3 or later version
https://support.industry.siemens.com/cs/ww/en/view/109997626/ - FixedSCALANCE XRM334 (230 V AC, 8xFO) (6GK5334-2TS01-3AR3)siemens_psirt
Update to V3.3 or later version
https://support.industry.siemens.com/cs/ww/en/view/109997626/ - FixedSCALANCE XRM334 (230V AC, 2x10G, 24xSFP, 8xSFP+) (6GK5334-5TS01-3AR3)siemens_psirt
Update to V3.3 or later version
https://support.industry.siemens.com/cs/ww/en/view/109997626/ - FixedSCALANCE XRM334 (24 V DC, 12xFO) (6GK5334-3TS01-2AR3)siemens_psirt
Update to V3.3 or later version
https://support.industry.siemens.com/cs/ww/en/view/109997626/ - FixedSCALANCE XRM334 (24 V DC, 8xFO) (6GK5334-2TS01-2AR3)siemens_psirt
Update to V3.3 or later version
https://support.industry.siemens.com/cs/ww/en/view/109997626/ - FixedSCALANCE XRM334 (24V DC, 2x10G, 24xSFP, 8xSFP+) (6GK5334-5TS01-2AR3)siemens_psirt
Update to V3.3 or later version
https://support.industry.siemens.com/cs/ww/en/view/109997626/ - FixedSCALANCE XRM334 (2x230 V AC, 12xFO) (6GK5334-3TS01-4AR3)siemens_psirt
Update to V3.3 or later version
https://support.industry.siemens.com/cs/ww/en/view/109997626/ - FixedSCALANCE XRM334 (2x230 V AC, 8xFO) (6GK5334-2TS01-4AR3)siemens_psirt
Update to V3.3 or later version
https://support.industry.siemens.com/cs/ww/en/view/109997626/ - FixedSCALANCE XRM334 (2x230V AC, 2x10G, 24xSFP, 8xSFP+) (6GK5334-5TS01-4AR3)siemens_psirt
Update to V3.3 or later version
https://support.industry.siemens.com/cs/ww/en/view/109997626/ - FixedRUGGEDCOM RST2428P (6GK6242-6PA00)cisa_csaf_ot
Update to V3.3 or later version
https://support.industry.siemens.com/cs/ww/en/view/109997626/ - FixedSCALANCE XC-300/XR-300/XC-400/XR-500WG/XR-500 familycisa_csaf_ot
See Section Additional Information.
- FixedSCALANCE XCH328 (6GK5328-4TS01-2EC2)cisa_csaf_ot
Update to V3.3 or later version
https://support.industry.siemens.com/cs/ww/en/view/109997626/ - FixedSCALANCE XCM324 (6GK5324-8TS01-2AC2)cisa_csaf_ot
Update to V3.3 or later version
https://support.industry.siemens.com/cs/ww/en/view/109997626/ - FixedSCALANCE XCM328 (6GK5328-4TS01-2AC2)cisa_csaf_ot
Update to V3.3 or later version
https://support.industry.siemens.com/cs/ww/en/view/109997626/ - FixedSCALANCE XCM332 (6GK5332-0GA01-2AC2)cisa_csaf_ot
Update to V3.3 or later version
https://support.industry.siemens.com/cs/ww/en/view/109997626/ - FixedSCALANCE XRH334 (24 V DC, 8xFO, CC) (6GK5334-2TS01-2ER3)cisa_csaf_ot
Update to V3.3 or later version
https://support.industry.siemens.com/cs/ww/en/view/109997626/ - FixedSCALANCE XRM334 (230 V AC, 12xFO) (6GK5334-3TS01-3AR3)cisa_csaf_ot
Update to V3.3 or later version
https://support.industry.siemens.com/cs/ww/en/view/109997626/ - FixedSCALANCE XRM334 (230 V AC, 8xFO) (6GK5334-2TS01-3AR3)cisa_csaf_ot
Update to V3.3 or later version
https://support.industry.siemens.com/cs/ww/en/view/109997626/ - FixedSCALANCE XRM334 (230V AC, 2x10G, 24xSFP, 8xSFP+) (6GK5334-5TS01-3AR3)cisa_csaf_ot
Update to V3.3 or later version
https://support.industry.siemens.com/cs/ww/en/view/109997626/ - FixedSCALANCE XRM334 (24 V DC, 12xFO) (6GK5334-3TS01-2AR3)cisa_csaf_ot
Update to V3.3 or later version
https://support.industry.siemens.com/cs/ww/en/view/109997626/ - FixedSCALANCE XRM334 (24 V DC, 8xFO) (6GK5334-2TS01-2AR3)cisa_csaf_ot
Update to V3.3 or later version
https://support.industry.siemens.com/cs/ww/en/view/109997626/ - FixedSCALANCE XRM334 (24V DC, 2x10G, 24xSFP, 8xSFP+) (6GK5334-5TS01-2AR3)cisa_csaf_ot
Update to V3.3 or later version
https://support.industry.siemens.com/cs/ww/en/view/109997626/ - FixedSCALANCE XRM334 (2x230 V AC, 12xFO) (6GK5334-3TS01-4AR3)cisa_csaf_ot
Update to V3.3 or later version
https://support.industry.siemens.com/cs/ww/en/view/109997626/ - FixedSCALANCE XRM334 (2x230 V AC, 8xFO) (6GK5334-2TS01-4AR3)cisa_csaf_ot
Update to V3.3 or later version
https://support.industry.siemens.com/cs/ww/en/view/109997626/ - FixedSCALANCE XRM334 (2x230V AC, 2x10G, 24xSFP, 8xSFP+) (6GK5334-5TS01-4AR3)cisa_csaf_ot
Update to V3.3 or later version
https://support.industry.siemens.com/cs/ww/en/view/109997626/ - MitigationSIMATIC S7-1500 CPU 1518-4 PN/DP MFP (6ES7518-4AX00-1AB0)siemens_psirt
Limit access to the interactive shell of the additional GNU/Linux subssytem to trusted personnel only.
- MitigationSIMATIC S7-1500 CPU 1518-4 PN/DP MFP (6ES7518-4AX00-1AC0)siemens_psirt
Limit access to the interactive shell of the additional GNU/Linux subssytem to trusted personnel only.
- MitigationSIMATIC S7-1500 CPU 1518F-4 PN/DP MFP (6ES7518-4FX00-1AB0)siemens_psirt
Limit access to the interactive shell of the additional GNU/Linux subssytem to trusted personnel only.
- MitigationSIMATIC S7-1500 CPU 1518F-4 PN/DP MFP (6ES7518-4FX00-1AC0)siemens_psirt
Limit access to the interactive shell of the additional GNU/Linux subssytem to trusted personnel only.
- MitigationSIPLUS S7-1500 CPU 1518-4 PN/DP MFP (6AG1518-4AX00-4AC0)siemens_psirt
Limit access to the interactive shell of the additional GNU/Linux subssytem to trusted personnel only.
- MitigationSIMATIC S7-1500 CPU 1518-4 PN/DP MFP (6ES7518-4AX00-1AB0)cisa_csaf_ot
Limit access to the interactive shell of the additional GNU/Linux subssytem to trusted personnel only.
- MitigationSIMATIC S7-1500 CPU 1518-4 PN/DP MFP (6ES7518-4AX00-1AC0)cisa_csaf_ot
Limit access to the interactive shell of the additional GNU/Linux subssytem to trusted personnel only.
- MitigationSIMATIC S7-1500 CPU 1518F-4 PN/DP MFP (6ES7518-4FX00-1AB0)cisa_csaf_ot
Limit access to the interactive shell of the additional GNU/Linux subssytem to trusted personnel only.
- MitigationSIMATIC S7-1500 CPU 1518F-4 PN/DP MFP (6ES7518-4FX00-1AC0)cisa_csaf_ot
Limit access to the interactive shell of the additional GNU/Linux subssytem to trusted personnel only.
- MitigationSIPLUS S7-1500 CPU 1518-4 PN/DP MFP (6AG1518-4AX00-4AC0)cisa_csaf_ot
Limit access to the interactive shell of the additional GNU/Linux subssytem to trusted personnel only.
- No fix availableSIMATIC S7-1500 CPU 1518-4 PN/DP MFP (6ES7518-4AX00-1AB0)siemens_psirt
Currently no fix is available
- No fix availableSIMATIC S7-1500 CPU 1518-4 PN/DP MFP (6ES7518-4AX00-1AC0)siemens_psirt
Currently no fix is available
- No fix availableSIMATIC S7-1500 CPU 1518F-4 PN/DP MFP (6ES7518-4FX00-1AB0)siemens_psirt
Currently no fix is available
- No fix availableSIMATIC S7-1500 CPU 1518F-4 PN/DP MFP (6ES7518-4FX00-1AC0)siemens_psirt
Currently no fix is available
- No fix availableSIPLUS S7-1500 CPU 1518-4 PN/DP MFP (6AG1518-4AX00-4AC0)siemens_psirt
Currently no fix is available
- No fix availableSIMATIC S7-1500 CPU 1518-4 PN/DP MFP (6ES7518-4AX00-1AB0)cisa_csaf_ot
Currently no fix is available
- No fix availableSIMATIC S7-1500 CPU 1518-4 PN/DP MFP (6ES7518-4AX00-1AC0)cisa_csaf_ot
Currently no fix is available
- No fix availableSIMATIC S7-1500 CPU 1518F-4 PN/DP MFP (6ES7518-4FX00-1AB0)cisa_csaf_ot
Currently no fix is available
- No fix availableSIMATIC S7-1500 CPU 1518F-4 PN/DP MFP (6ES7518-4FX00-1AC0)cisa_csaf_ot
Currently no fix is available
- No fix availableSIPLUS S7-1500 CPU 1518-4 PN/DP MFP (6AG1518-4AX00-4AC0)cisa_csaf_ot
Currently no fix is available
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode
ssvc
A stakeholder decision — act, attend, or track — from exploitation and impact.
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (226)
Products and version ranges known to be affected.
advisories (11)
Vendor and ecosystem advisories describing this.
- NCSC-2025-0187Kwetsbaarheden verholpen in Siemens productenNL2025-06-10csaf · ncsc_nlNL
Siemens heeft kwetsbaarheden verholpen in diverse producten als RUGGEDCOM, SCALANCE, SIMATIC en Tecnomatix
- NCSC-2025-0330Kwetsbaarheden verholpen in Oracle Communications productenNL2025-10-23csaf · ncsc_nlNL
Oracle heeft meerdere kwetsbaarheden verholpen in zijn Communications producten, waaronder de Unified Assurance en Cloud Native Core.
- SSA-082556SSA-082556: Vulnerabilities in the additional GNU/Linux subsystem of the SIMATIC S7-1500 CPU 1518(F)-4 PN/DP MFP V3.1.52025-06-10csaf · siemens_psirtDE
Multiple vulnerabilities have been identified in the additional GNU/Linux subsystem of the firmware version V3.1.5 for the SIMATIC S7-1500 CPU 1518(F)-4 PN/DP MFP (incl. SIPLUS variant). Siemens has released new versions for several affected products and recommends to update to the latest versions. Siemens is preparing further fixes and recommends specific mitigations for products where fixes are not or not yet available. SIMATIC S7-1500 CPU 1518(F)-4 PN/DP MFP V3.1.5 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 V3.1.5 only; for version V3.1.6 refer to SSA-019113.
- SSA-089022SSA-089022: Multiple Vulnerabilities in Third-Party Components in SINEC OS before V3.32026-01-28csaf · siemens_psirtDE
SINEC OS before V3.3 contains third-party components with multiple vulnerabilities. Siemens has released new versions for the affected products and recommends to update to the latest versions.
- WID-SEC-W-2025-1546Red Hat Enterprise Linux (GLib): Schwachstelle ermöglicht Denial of ServiceDeutsch2025-07-14csaf · cert_bundDE
Ein entfernter, anonymer Angreifer kann eine Schwachstelle in Red Hat Enterprise Linux GLib ausnutzen, um einen Denial of Service Angriff durchzuführen.
- WID-SEC-W-2025-1905IBM QRadar SIEM Komponente: Mehrere SchwachstellenDeutsch2025-08-25csaf · cert_bundDE
Ein Angreifer kann mehrere Schwachstellen in IBM QRadar SIEM Komponenten ausnutzen, um Daten zu manipulieren, um einen Denial of Service Angriff durchzuführen, um beliebigen Programmcode auszuführen, um Sicherheitsvorkehrungen zu umgehen, und um Informationen offenzulegen.
- WID-SEC-W-2025-2361Oracle Communications: Mehrere SchwachstellenDeutsch2025-10-21csaf · 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-2026-0349Dell Avamar und NetWorker: Mehrere SchwachstellenDeutsch2026-02-09csaf · cert_bundDE
Ein Angreifer kann mehrere Schwachstellen in Dell Avamar und Dell NetWorker ausnutzen, um Angriffe zu starten, die die Integrität, Vertraulichkeit und Verfügbarkeit von Systemen beeinträchtigen.
- ICSA-25-162-05Siemens SIMATIC S7-1500 CPU family2025-06-10icsa · cisa_csaf_otUS
Multiple vulnerabilities have been identified in the additional GNU/Linux subsystem of the firmware version V3.1.5 for the SIMATIC S7-1500 CPU 1518(F)-4 PN/DP MFP (incl. SIPLUS variant). Siemens is preparing fix versions and recommends countermeasures for products where fixes are not, or not yet available.
- ICSA-26-043-06Siemens SINEC OS2026-01-28icsa · cisa_csaf_otUS
SINEC OS before V3.3 contains third-party components with multiple vulnerabilities. Siemens has released new versions for the affected products and recommends to update to the latest versions.
- CERTFR-2026-AVI-1385Multiples vulnérabilités dans les produits VMwareFrançais2026-10-26vendor · certfrFR
also known as (4)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (52)
External citations — patches, advisories, analysis.
- https://access.redhat.com/errata/RHSA-2025:10855cnnvd
- https://access.redhat.com/errata/RHSA-2025:11140cnnvd
- https://access.redhat.com/errata/RHSA-2025:11327cnnvd
- https://access.redhat.com/errata/RHSA-2025:11373cnnvd
- https://access.redhat.com/errata/RHSA-2025:11374cnnvd
- https://access.redhat.com/errata/RHSA-2025:11662cnnvd
- https://access.redhat.com/errata/RHSA-2025:12275cnnvd
- https://access.redhat.com/errata/RHSA-2025:13335cnnvd
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