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  4. CVE 2025 2884 out of bounds read vulnerability in tcg tpm20
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Back to active CVEs
Medium ยท CVSS 6.6CVE-2025-2884

Out-of-Bounds read vulnerability in TCG TPM2.0 reference implementationCVE-2025-2884

Answer in brief

CVE-2025-2884 records a Medium severity (CVSS 6.6) vulnerability in Out-of-Bounds read vulnerability in TCG TPM2.0 reference implementation. The current sources do not mark it as known exploited. The current feed maps Siemens/SIMATIC CN 4100 (generic), Siemens/SIMATIC Field PG M5 (generic), Siemens/SIMATIC Field PG M6 (generic), Siemens/SIMATIC IPC227E (generic) and additional mapped packages. Check affected ranges and fixed versions before updating.

Analysis pending evidence review

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

Published Jun 10, 2025Updated Oct 15, 2026Source checked Nov 10, 2026First seen by HOL Aug 11, 2026Material review Oct 15, 2026
Upstream Advisory

Key facts

Risk
Medium ยท CVSS 6.6
Exploitation
Not marked as known exploited
Affected software
29 mapped packages or products
Fix availability
Available

Why this deserves its current priority

CVSS is 6.6. 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 Siemens/SIMATIC CN 4100 (generic), Siemens/SIMATIC Field PG M5 (generic), Siemens/SIMATIC Field PG M6 (generic), Siemens/SIMATIC IPC227E (generic) and additional mapped packages. Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
PackageAffected rangeFixed version
Siemens/SIMATIC CN 4100generic>=0 <**
Siemens/SIMATIC Field PG M5generic>=0 <**
Siemens/SIMATIC Field PG M6generic>=0 <V26.01.14V26.01.14
Siemens/SIMATIC IPC227Egeneric>=0 <**
Siemens/SIMATIC IPC277Egeneric>=0 <**
Siemens/SIMATIC IPC427Egeneric>=0 <V21.01.20V21.01.20
Siemens/SIMATIC IPC477Egeneric>=0 <V21.01.20V21.01.20
Siemens/SIMATIC IPC477E PROgeneric>=0 <V21.01.20V21.01.20
Siemens/SIMATIC IPC627Egeneric>=0 <**
Siemens/SIMATIC IPC627Egeneric>=0 <V25.02.16V25.02.16
Siemens/SIMATIC IPC647Egeneric>=0 <**
Siemens/SIMATIC IPC647Egeneric>=0 <V25.02.16V25.02.16
Siemens/SIMATIC IPC677Egeneric>=0 <**
Siemens/SIMATIC IPC677Egeneric>=0 <V25.02.16V25.02.16
Siemens/SIMATIC IPC847Egeneric>=0 <**
Siemens/SIMATIC IPC847Egeneric>=0 <V25.02.16V25.02.16
Siemens/SIMATIC IPC BX-32Ageneric>=0 <V29.01.09V29.01.09
Siemens/SIMATIC IPC BX-39Ageneric>=0 <V29.01.09V29.01.09
Siemens/SIMATIC IPC BX-56Ageneric>=0 <V32.01.09V32.01.09
Siemens/SIMATIC IPC BX-59Ageneric>=0 <V32.01.09V32.01.09
Siemens/SIMATIC IPC MD-57Ageneric>=0 <V30.01.10V30.01.10
Siemens/SIMATIC IPC PX-32Ageneric>=0 <V29.01.09V29.01.09
Siemens/SIMATIC IPC PX-39Ageneric>=0 <V29.01.09V29.01.09
Siemens/SIMATIC IPC PX-39A PROgeneric>=0 <V29.01.09V29.01.09
Siemens/SIMATIC IPC RW-528Ageneric>=0 <V34.01.02V34.01.02
Siemens/SIMATIC IPC RW-548Ageneric>=0 <V34.01.02V34.01.02
Siemens/SIMATIC ITP1000generic>=0 <**
Siemens/SIPLUS IPC427Egeneric>=0 <V21.01.20V21.01.20
Trusted Computing Group/TPM2.0generic>=0 <1.831.83

Recommended response

  1. 1Check inventory. Check lockfiles and deployed manifests for Siemens/SIMATIC CN 4100, Siemens/SIMATIC Field PG M5, Siemens/SIMATIC Field PG M6.
  2. 2Review the reported fix. Update Siemens/SIMATIC CN 4100 to *; Siemens/SIMATIC Field PG M5 to *; Siemens/SIMATIC Field PG M6 to V26.01.14; Siemens/SIMATIC IPC227E to *; Siemens/SIMATIC IPC277E to *; Siemens/SIMATIC IPC427E to V21.01.20; Siemens/SIMATIC IPC477E to V21.01.20; Siemens/SIMATIC IPC477E PRO to V21.01.20; Siemens/SIMATIC IPC627E to *; Siemens/SIMATIC IPC627E to V25.02.16; Siemens/SIMATIC IPC647E to *; Siemens/SIMATIC IPC647E to V25.02.16; Siemens/SIMATIC IPC677E to *; Siemens/SIMATIC IPC677E to V25.02.16; Siemens/SIMATIC IPC847E to *; Siemens/SIMATIC IPC847E to V25.02.16; Siemens/SIMATIC IPC BX-32A to V29.01.09; Siemens/SIMATIC IPC BX-39A to V29.01.09; Siemens/SIMATIC IPC BX-56A to V32.01.09; Siemens/SIMATIC IPC BX-59A to V32.01.09; Siemens/SIMATIC IPC MD-57A to V30.01.10; Siemens/SIMATIC IPC PX-32A to V29.01.09; Siemens/SIMATIC IPC PX-39A to V29.01.09; Siemens/SIMATIC IPC PX-39A PRO to V29.01.09; Siemens/SIMATIC IPC RW-528A to V34.01.02; Siemens/SIMATIC IPC RW-548A to V34.01.02; Siemens/SIMATIC ITP1000 to *; Siemens/SIPLUS IPC427E to V21.01.20; Trusted Computing Group/TPM2.0 to 1.83 if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

  1. Published upstream

    Jun 10, 2025

    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

    Aug 11, 2026

Sources and claim methodology

  • Source referencecert-portal.siemens.com
  • GitHub security advisorygithub.com
  • Source referencetrustedcomputinggroup.org
  • Source referencetrustedcomputinggroup.org
  • Source referencetrustedcomputinggroup.org
  • Source referencecve.org
  • Source referenceintel.com
  • Source referencekb.cert.org
Upstream source description

TCG TPM2.0 Reference implementation's CryptHmacSign helper function is vulnerable to Out-of-Bounds read due to the lack of validation the signature scheme with the signature key's algorithm. See Errata Revision 1.83 and advisory TCGVRT0009 for TCG standard TPM2.0

Quoted source text, attributed separately from HOL analysis.

Related CVEs

  • Ettercap through 0.8.4.1 Heap Out-of-Bounds Read via TLS SNI ParsingAlso CWE-125
  • Ettercap through 0.8.4.1 Out-of-Bounds Read via sslw_remove_stsAlso CWE-125
  • Ettercap through 0.8.4.1 Out-of-Bounds Read via HTTP NTLM Authentication ParsingAlso CWE-125

Record context

Vulnerability class
Buffer Overflow
EPSS
Not reported
CWE IDs
CWE-125
Source
CVE List V5
Source checked
Nov 10, 2026
References
8 linked sources
Open source record