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Back to active CVEs
Unknown severity · Source severity not reportedCVE-2026-23303

smb: client: Don't log plaintext credentials in cifs_set_cifscredsCVE-2026-23303

Answer in brief

CVE-2026-23303 records a Unknown severity vulnerability in smb: client: Don't log plaintext credentials in cifs_set_cifscreds. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic), Siemens/SIMATIC S7-1500 TM MFP - GNU/Linux subsystem (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Mar 25, 2026Updated Oct 15, 2026Source checked Oct 15, 2026First seen by HOL Oct 15, 2026Material review Oct 15, 2026
Upstream Advisory

Key facts

Risk
Unknown severitySource severity not reported
Exploitation
Not marked as known exploited
Affected software
3 mapped packages or products
Fix availability
Available

Why this deserves its current priority

A CVSS score is not reported in the current record. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps Linux/Linux (generic), Linux/Linux (generic), Siemens/SIMATIC S7-1500 TM MFP - GNU/Linux subsystem (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
PackageAffected rangeFixed version
Linux/Linuxgeneric>=8a8798a5ff90977d6459ce1d657cf8fe13a51e97 <e5a3b11e07b335006371915b2da47b6056c9e3bc || >=8a8798a5ff90977d6459ce1d657cf8fe13a51e97 <54c570de9a35860dfa85fe668f23ddfda8cc7e26 || >=8a8798a5ff90977d6459ce1d657cf8fe13a51e97 <ff0ece8ed04180c52167c003362284b23cf54e8d || >=8a8798a5ff90977d6459ce1d657cf8fe13a51e97 <3990f352bb0adc8688d0949a9c13e3110570eb61 || >=8a8798a5ff90977d6459ce1d657cf8fe13a51e97 <b746a357abfb8fdb0a171d51ec5091e786d34be1 || >=8a8798a5ff90977d6459ce1d657cf8fe13a51e97 <2ef0fc3bf49db2b9df36d5f44508c9e384bfa2a1 || >=8a8798a5ff90977d6459ce1d657cf8fe13a51e97 <3e182701db612ddd794ccd5ed822e6cc1db2b972 || >=8a8798a5ff90977d6459ce1d657cf8fe13a51e97 <2f37dc436d4e61ff7ae0b0353cf91b8c10396e4de5a3b11e07b335006371915b2da47b6056c9e3bc, 54c570de9a35860dfa85fe668f23ddfda8cc7e26, ff0ece8ed04180c52167c003362284b23cf54e8d, 3990f352bb0adc8688d0949a9c13e3110570eb61, b746a357abfb8fdb0a171d51ec5091e786d34be1, 2ef0fc3bf49db2b9df36d5f44508c9e384bfa2a1, 3e182701db612ddd794ccd5ed822e6cc1db2b972, 2f37dc436d4e61ff7ae0b0353cf91b8c10396e4d
Linux/Linuxgeneric3.3Not reported
Siemens/SIMATIC S7-1500 TM MFP - GNU/Linux subsystemgeneric>=0 <**

Recommended response

  1. 1Check inventory. Check lockfiles and deployed manifests for Linux/Linux, Linux/Linux, Siemens/SIMATIC S7-1500 TM MFP - GNU/Linux subsystem.
  2. 2Review the reported fix. Update Linux/Linux to e5a3b11e07b335006371915b2da47b6056c9e3bc; Siemens/SIMATIC S7-1500 TM MFP - GNU/Linux subsystem to * if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

  1. Published upstream

    Mar 25, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  2. Source modified

    Oct 15, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  3. First seen by HOL

    Oct 15, 2026

Sources and claim methodology

  • Source referencecert-portal.siemens.com
  • Source referencegit.kernel.org
  • Source referencegit.kernel.org
  • Source referencegit.kernel.org
  • Source referencegit.kernel.org
  • Source referencegit.kernel.org
  • Source referencegit.kernel.org
  • Source referencegit.kernel.org
  • Source referencegit.kernel.org
Upstream source description

In the Linux kernel, the following vulnerability has been resolved: smb: client: Don't log plaintext credentials in cifs_set_cifscreds When debug logging is enabled, cifs_set_cifscreds() logs the key payload and exposes the plaintext username and password. Remove the debug log to avoid exposing credentials.

Quoted source text, attributed separately from HOL analysis.

Related CVEs

  • SODOLA SL902-SWTGW124AS Buffer Overflow DoS via Multipart Boundary ParserSame generic ecosystem
  • Ellucian WebAdvisor 3.2 Unauthenticated XXE InjectionSame generic ecosystem
  • sgl-project SGLang generate Endpoint io_struct.py denial of serviceSame generic ecosystem
  • sgl-project SGLang Session Cleanup session_controller.py Session.create_req denial of serviceSame generic ecosystem
  • ggml-org whisper.cpp Model Loader whisper_model_load out-of-boundsSame generic ecosystem
  • FreeRDP shadow before 3.32.0 Pre-Authentication Input Injection via Confirm Active bypassSame generic ecosystem

Record context

Vulnerability class
Secret Exfiltration
EPSS
Not reported
CWE IDs
Not reported
Source
CVE List V5
Source checked
Oct 15, 2026
References
9 linked sources
Open source record