PatchSiren cyber security CVE debrief

CVE-2025-3198 Siemens CVE debrief

CVE-2025-3198 is a low-severity, locally exploitable memory leak described in GNU Binutils 2.43/2.44, specifically in objdump's display_info path. In Siemens' advisory context, it is associated with several SIMATIC S7-1500 CPU variants, and the source states that no fix is currently available for the affected products. Because the issue requires local access and the source notes publicly disclosed exploitation, the main defensive need is to reduce who can access the affected GNU/Linux subsystem and to follow Siemens/CISA updates for remediation.

Vendor: Siemens
Product: SIMATIC S7-1500 CPU 1518-4 PN/DP MFP (6ES7518-4AX00-1AB0)
CVSS: LOW 3.3
CISA KEV: Not listed in stored evidence
Original CVE published: 2025-06-10
Original CVE updated: 2026-05-14
Advisory published: 2025-06-10
Advisory updated: 2026-05-14

Who should care

Operators and administrators of the affected Siemens SIMATIC S7-1500 CPU 1518/1518F MFP variants, especially environments that expose the additional GNU/Linux subsystem or allow local shell access.

Technical summary

The source corpus describes a memory leak in GNU Binutils' objdump component, in binutils/bucomm.c within the display_info function. Siemens' CSAF advisory maps CVE-2025-3198 to five SIMATIC/SIPLUS S7-1500 CPU product variants. The supplied CVSS vector is AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L, which aligns with a local issue that has limited availability impact and no confidentiality or integrity impact in the provided scoring. The advisory notes public exploit disclosure and, for the affected Siemens products, lists no currently available fix.

Defensive priority

Low

Recommended defensive actions

Limit access to the interactive shell of the additional GNU/Linux subsystem to trusted personnel only.
Only build and run applications from trusted sources.
Monitor Siemens ProductCERT and CISA advisory updates for a vendor fix or updated guidance.
Review local account access on affected systems and remove unnecessary interactive access.
Treat the issue as a local hardening concern rather than a remote exposure, but still prioritize remediation in environments where untrusted local access is possible.

Evidence notes

This debrief is grounded in the supplied CISA CSAF source item ICSA-25-162-05 and its linked Siemens advisory references. The source publication date is 2025-06-10 and the latest supplied modification date is 2026-05-14; those dates are used only as advisory timing context. The source text explicitly states: GNU Binutils 2.43/2.44, objdump/binutils/bucomm.c display_info, memory leak, local attack path, public exploit disclosure, and 'currently no fix is available' for the affected Siemens products.

Sources and references

Verified primary and authoritative sources

CVE-2025-3198 CVE Program record
Publisher, destination, and source semantics verified

URL: https://www.cve.org/CVERecord?id=CVE-2025-3198

CVE Program - Official CVE Program record with source-provided CVE metadata.
CVE-2025-3198 NVD vulnerability detail
Publisher, destination, and source semantics verified

URL: https://nvd.nist.gov/vuln/detail/CVE-2025-3198

NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

Supplemental references

Source item URL
Unverified legacy reference

URL: https://raw.githubusercontent.com/cisagov/CSAF/develop/csaf_files/OT/white/2025/icsa-25-162-05.json

cisa_csaf
Source reference
Unverified legacy reference

URL: https://cert-portal.siemens.com/productcert/csaf/ssa-082556.json

Reference
Source reference
Unverified legacy reference

URL: https://cert-portal.siemens.com/productcert/html/ssa-082556.html

Reference
Source reference
Unverified legacy reference

URL: https://www.cisa.gov/news-events/ics-advisories/icsa-25-162-05

Reference
Source reference
Unverified legacy reference

URL: https://www.cisa.gov/news-events/ics-alerts/ics-alert-10-301-01

Reference
Source reference
Unverified legacy reference

URL: https://www.cisa.gov/resources-tools/resources/ics-recommended-practices

Reference
Source reference
Unverified legacy reference

URL: https://www.cisa.gov/topics/industrial-control-systems

Reference
Source reference
Unverified legacy reference

URL: https://www.cisa.gov/sites/default/files/recommended_practices/NCCIC_ICS-CERT_Defense_in_Depth_2016_S508C.pdf

Reference

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.