SSA-628843

Vulnerability from csaf_siemens - Published: 2026-04-14 00:00 - Updated: 2026-04-14 00:00
Summary
SSA-628843: Out of Bound Read Vulnerability in TPM 2.0
Notes
Summary: The products listed below contain a vulnerability that could allow an attacker to perform an out-of-bound read, potentially leading to information disclosure or denial of service of the TPM. Siemens has released new versions for several affected products and recommends to update to the latest versions. Siemens is preparing further fix versions and recommends countermeasures for products where fixes are not, or not yet available.
General Recommendations: As a general security measure, Siemens strongly recommends to protect network access to devices with appropriate mechanisms. In order to operate the devices in a protected IT environment, Siemens recommends to configure the environment according to Siemens' operational guidelines for Industrial Security (Download: https://www.siemens.com/cert/operational-guidelines-industrial-security), and to follow the recommendations in the product manuals. Additional information on Industrial Security by Siemens can be found at: https://www.siemens.com/industrialsecurity
Additional Resources: For further inquiries on security vulnerabilities in Siemens products and solutions, please contact the Siemens ProductCERT: https://www.siemens.com/cert/advisories
Terms of Use: The use of Siemens Security Advisories is subject to the terms and conditions listed on: https://www.siemens.com/productcert/terms-of-use.
CVE-2025-2884
6.6 (Medium)
CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:N/A:H
CWE-125 - Out-of-bounds Read
No Fix Planned Currently no fix is planned
None Available Currently no fix is available
Vendor Fix Update to V21.01.20 or later version https://support.industry.siemens.com/cs/ww/en/vie…
Vendor Fix Update to V29.01.09 or later version https://support.industry.siemens.com/cs/ww/en/vie…
Vendor Fix Update to V30.01.10 or later version https://support.industry.siemens.com/cs/ww/en/vie…
Vendor Fix Update to V32.01.09 or later version https://support.industry.siemens.com/cs/ww/en/vie…
Vendor Fix Update to V34.01.02 or later version https://support.industry.siemens.com/cs/ww/en/vie…
References
To clipboard 

{
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    "distribution": {
      "text": "Disclosure is not limited. (TLPv2: TLP:CLEAR)",
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    "notes": [
      {
        "category": "summary",
        "text": "The products listed below contain a vulnerability that could allow an attacker to perform an out-of-bound read, potentially leading to information disclosure or denial of service of the TPM.\n\nSiemens has released new versions for several affected products and recommends to update to the latest versions. Siemens is preparing further fix versions and recommends countermeasures for products where fixes are not, or not yet available.",
        "title": "Summary"
      },
      {
        "category": "general",
        "text": "As a general security measure, Siemens strongly recommends to protect network access to devices with appropriate mechanisms. In order to operate the devices in a protected IT environment, Siemens recommends to configure the environment according to Siemens\u0027 operational guidelines for Industrial Security (Download: https://www.siemens.com/cert/operational-guidelines-industrial-security), and to follow the recommendations in the product manuals.\nAdditional information on Industrial Security by Siemens can be found at: https://www.siemens.com/industrialsecurity",
        "title": "General Recommendations"
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        "category": "general",
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        "title": "Additional Resources"
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        "title": "Terms of Use"
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        "summary": "SSA-628843: Out of Bound Read Vulnerability in TPM 2.0 - HTML Version",
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      }
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    "title": "SSA-628843: Out of Bound Read Vulnerability in TPM 2.0",
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          "text": "TCG TPM2.0 Reference implementation\u0027s CryptHmacSign helper function is vulnerable to Out-of-Bounds read due to the lack of validation the signature scheme with the signature key\u0027s algorithm. See Errata Revision 1.83 and advisory TCGVRT0009 for TCG standard TPM2.0",
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      "scores": [
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          "cvss_v3": {
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            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:N/A:H",
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      "title": "CVE-2025-2884"
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}


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Tags
Taxonomy of the tags.




Sightings

Author Source Type Date

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Detection rules are retrieved from Rulezet.