VDE-2026-029

Vulnerability from csaf_mettlertoledogmbh - Published: 2026-04-23 10:00 - Updated: 2026-04-23 10:00
Summary
METTLER TOLEDO: OpenSSL vulnerability in MX and MR balances
Severity
Medium
Notes
Summary: MX/MR firmware V2.0.0 or earlier is affected by the OpenSSL vulnerability CVE-2025-15467.
Impact: A stack buffer overflow may lead to a crash, causing Denial of Service, or potentially remote code execution.
Remediation: Update MX/MR firmware to version 2.1.0
Disclaimer: Your use of the information on this document or materials linked from this document is at your own risk. METTLER TOLEDO makes reasonable efforts to ensure the accuracy of the information but does not grant any warranty, express or implied, including warranties of merchantability or fitness for a particular purpose. To the extent permitted by applicable law, METTLER TOLEDO excludes liability for any loss, claim, expense or damage arising from or related to the statements in this document. METTLER TOLEDO reserves the right to change or update this document at any time.
CVE-2025-15467

Parsing CMS AuthEnvelopedData or EnvelopedData message with maliciously crafted AEAD parameters can trigger a stack buffer overflow. Impact summary: A stack buffer overflow may lead to a crash, causing Denial of Service, or potentially remote code execution. When parsing CMS (Auth)EnvelopedData structures that use AEAD ciphers such as AES-GCM, the IV (Initialization Vector) encoded in the ASN.1 parameters is copied into a fixed-size stack buffer without verifying that its length fits the destination. An attacker can supply a crafted CMS message with an oversized IV, causing a stack-based out-of-bounds write before any authentication or tag verification occurs. Applications and services that parse untrusted CMS or PKCS#7 content using AEAD ciphers (e.g., S/MIME (Auth)EnvelopedData with AES-GCM) are vulnerable. Because the overflow occurs prior to authentication, no valid key material is required to trigger it. While exploitability to remote code execution depends on platform and toolchain mitigations, the stack-based write primitive represents a severe risk. The FIPS modules in 3.6, 3.5, 3.4, 3.3 and 3.0 are not affected by this issue, as the CMS implementation is outside the OpenSSL FIPS module boundary. OpenSSL 3.6, 3.5, 3.4, 3.3 and 3.0 are vulnerable to this issue. OpenSSL 1.1.1 and 1.0.2 are not affected by this issue.

Vulnerability potentially exploitable with manipulated SW upgrade package on USB memory. The vulnerability is fixed in openssl debian package 3.0.18-1~deb12u2. In the device context, there are deviations from the original CVSS assessment. Attack vector is set to 'local' because firmware upgrades are only possible though an attached USB memory, not through the network.

8.8 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
7.8 (High)
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CWE-787 - Out-of-bounds Write
Affected products
Product Identifier Version Remediation
Unresolved product id: CSAFPID-32000 —
Unresolved product id: CSAFPID-32001 —
openssl 3.0.18-1~deb12u2
Debian Project
 pkg:deb/debian/openssl@3.0.18-1~deb12u2 3.0.18-1~deb12u2
Product Identifier Version Remediation
Unresolved product id: CSAFPID-31000 —
Vendor Fix
Unresolved product id: CSAFPID-31001 —
Vendor Fix
openssl 3.0.18-1~deb12u1
Debian Project
 pkg:deb/debian/openssl@3.0.18-1~deb12u1 3.0.18-1~deb12u1
Vendor Fix
Product Identifier Version Remediation
Unresolved product id: CSAFPID-32000 —
Unresolved product id: CSAFPID-32001 —
openssl 3.0.18-1~deb12u2
Debian Project
 pkg:deb/debian/openssl@3.0.18-1~deb12u2 3.0.18-1~deb12u2
References
Acknowledgments
CERT@VDE certvde.com
To clipboard 

{
  "document": {
    "acknowledgments": [
      {
        "organization": "CERT@VDE",
        "summary": "coordination",
        "urls": [
          "https://certvde.com"
        ]
      }
    ],
    "aggregate_severity": {
      "namespace": "https://www.first.org/cvss/v3.1/specification-document#Qualitative-Severity-Rating-Scale",
      "text": "Medium"
    },
    "category": "csaf_security_advisory",
    "csaf_version": "2.0",
    "distribution": {
      "tlp": {
        "label": "WHITE",
        "url": "https://www.first.org/tlp/"
      }
    },
    "lang": "en-GB",
    "notes": [
      {
        "category": "summary",
        "text": "MX/MR firmware V2.0.0 or earlier is affected by the OpenSSL vulnerability CVE-2025-15467.",
        "title": "Summary"
      },
      {
        "category": "description",
        "text": "A stack buffer overflow may lead to a crash, causing Denial of Service, or potentially remote code execution.",
        "title": "Impact"
      },
      {
        "category": "description",
        "text": "Update MX/MR firmware to version 2.1.0",
        "title": "Remediation"
      },
      {
        "category": "legal_disclaimer",
        "text": "Your use of the information on this document or materials linked from this document is at your own risk. METTLER TOLEDO makes reasonable efforts to ensure the accuracy of the information but does not grant any warranty, express or implied, including warranties of merchantability or fitness for a particular purpose. To the extent permitted by applicable law, METTLER TOLEDO excludes liability for any loss, claim, expense or damage arising from or related to the statements in this document. METTLER TOLEDO reserves the right to change or update this document at any time.",
        "title": "Disclaimer"
      }
    ],
    "publisher": {
      "category": "vendor",
      "contact_details": "psirt@mt.com",
      "name": "Mettler-Toledo GmbH",
      "namespace": "https://www.mt.com"
    },
    "references": [
      {
        "category": "external",
        "summary": "Product security website of METTLER TOLEDO",
        "url": "https://www.mt.com/ph/en/home/site_content/product-security.html"
      },
      {
        "category": "external",
        "summary": "CERT@VDE Security Advisories for METTLER TOLEDO",
        "url": "https://certvde.com/en/advisories/vendor/mettler-toledo/"
      },
      {
        "category": "self",
        "summary": "VDE-2026-029: METTLER TOLEDO: OpenSSL vulnerability in MX and MR balances - HTML",
        "url": "https://certvde.com/en/advisories/VDE-2026-029/"
      },
      {
        "category": "self",
        "summary": "VDE-2026-029: METTLER TOLEDO: OpenSSL vulnerability in MX and MR balances - CSAF",
        "url": "https://mettler-toledo.csaf-tp.certvde.com/.well-known/csaf/white/2026/vde-2026-029.json"
      }
    ],
    "title": "METTLER TOLEDO: OpenSSL vulnerability in MX and MR balances",
    "tracking": {
      "aliases": [
        "VDE-2026-029"
      ],
      "current_release_date": "2026-04-23T10:00:00.000Z",
      "generator": {
        "date": "2026-04-23T10:41:48.109Z",
        "engine": {
          "name": "Secvisogram",
          "version": "2.5.44"
        }
      },
      "id": "VDE-2026-029",
      "initial_release_date": "2026-04-23T10:00:00.000Z",
      "revision_history": [
        {
          "date": "2026-04-23T10:00:00.000Z",
          "number": "1.0.0",
          "summary": "Initial revision"
        }
      ],
      "status": "final",
      "version": "1.0.0"
    }
  },
  "product_tree": {
    "branches": [
      {
        "branches": [
          {
            "branches": [
              {
                "category": "product_name",
                "name": "MX balance",
                "product": {
                  "name": "MX balance",
                  "product_id": "CSAFPID-11000",
                  "product_identification_helper": {
                    "cpe": "cpe:2.3:h:mettler_toledo:mx_balance:*:*:*:*:*:*:*:*",
                    "model_numbers": [
                      "MX*"
                    ]
                  }
                }
              },
              {
                "category": "product_name",
                "name": "MR balance",
                "product": {
                  "name": "MR balance",
                  "product_id": "CSAFPID-11001",
                  "product_identification_helper": {
                    "cpe": "cpe:2.3:h:mettler_toledo:mr_balance:*:*:*:*:*:*:*:*",
                    "model_numbers": [
                      "MR*"
                    ]
                  }
                }
              }
            ],
            "category": "product_family",
            "name": "Hardware"
          },
          {
            "branches": [
              {
                "category": "product_version",
                "name": "2.1.0",
                "product": {
                  "name": "Firmware V2.1.0",
                  "product_id": "CSAFPID-22000"
                }
              },
              {
                "category": "product_version_range",
                "name": "vers:generic/\u003c2.1.0",
                "product": {
                  "name": "Firmware \u003c2.1.0",
                  "product_id": "CSAFPID-21000"
                }
              }
            ],
            "category": "product_family",
            "name": "Firmware"
          }
        ],
        "category": "vendor",
        "name": "METTLER TOLEDO"
      },
      {
        "branches": [
          {
            "branches": [
              {
                "category": "product_version",
                "name": "3.0.18-1~deb12u1",
                "product": {
                  "name": "openssl 3.0.18-1~deb12u1",
                  "product_id": "CSAFPID-51002",
                  "product_identification_helper": {
                    "purl": "pkg:deb/debian/openssl@3.0.18-1~deb12u1"
                  }
                }
              },
              {
                "category": "product_version",
                "name": "3.0.18-1~deb12u2",
                "product": {
                  "name": "openssl 3.0.18-1~deb12u2",
                  "product_id": "CSAFPID-52002",
                  "product_identification_helper": {
                    "purl": "pkg:deb/debian/openssl@3.0.18-1~deb12u2"
                  }
                }
              }
            ],
            "category": "service_pack",
            "name": "openssl debian package"
          }
        ],
        "category": "vendor",
        "name": "Debian Project"
      }
    ],
    "relationships": [
      {
        "category": "installed_on",
        "full_product_name": {
          "name": "Firmware \u003c2.1.0 installed on MX balance",
          "product_id": "CSAFPID-31000"
        },
        "product_reference": "CSAFPID-21000",
        "relates_to_product_reference": "CSAFPID-11000"
      },
      {
        "category": "installed_with",
        "full_product_name": {
          "name": "Firmware \u003c2.1.0 installed on MR balance",
          "product_id": "CSAFPID-31001"
        },
        "product_reference": "CSAFPID-21000",
        "relates_to_product_reference": "CSAFPID-11001"
      },
      {
        "category": "installed_on",
        "full_product_name": {
          "name": "Firmware V2.1.0 installed on MX balance",
          "product_id": "CSAFPID-32000",
          "product_identification_helper": {
            "cpe": "cpe:2.3:o:mettler_toledo:mx_balance_firmware:2.1.0:*:*:*:*:*:*:*"
          }
        },
        "product_reference": "CSAFPID-22000",
        "relates_to_product_reference": "CSAFPID-11000"
      },
      {
        "category": "installed_on",
        "full_product_name": {
          "name": "Firmware V2.1.0 installed on MR balance",
          "product_id": "CSAFPID-32001",
          "product_identification_helper": {
            "cpe": "cpe:2.3:o:mettler_toledo:mr_balance_firmware:2.1.0:*:*:*:*:*:*:*"
          }
        },
        "product_reference": "CSAFPID-22000",
        "relates_to_product_reference": "CSAFPID-11001"
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2025-15467",
      "cwe": {
        "id": "CWE-787",
        "name": "Out-of-bounds Write"
      },
      "notes": [
        {
          "audience": "all",
          "category": "description",
          "text": "Parsing CMS AuthEnvelopedData or EnvelopedData message with maliciously crafted AEAD parameters can trigger a stack buffer overflow. Impact summary: A stack buffer overflow may lead to a crash, causing Denial of Service, or potentially remote code execution. When parsing CMS (Auth)EnvelopedData structures that use AEAD ciphers such as AES-GCM, the IV (Initialization Vector) encoded in the ASN.1 parameters is copied into a fixed-size stack buffer without verifying that its length fits the destination. An attacker can supply a crafted CMS message with an oversized IV, causing a stack-based out-of-bounds write before any authentication or tag verification occurs. Applications and services that parse untrusted CMS or PKCS#7 content using AEAD ciphers (e.g., S/MIME (Auth)EnvelopedData with AES-GCM) are vulnerable. Because the overflow occurs prior to authentication, no valid key material is required to trigger it. While exploitability to remote code execution depends on platform and toolchain mitigations, the stack-based write primitive represents a severe risk. The FIPS modules in 3.6, 3.5, 3.4, 3.3 and 3.0 are not affected by this issue, as the CMS implementation is outside the OpenSSL FIPS module boundary. OpenSSL 3.6, 3.5, 3.4, 3.3 and 3.0 are vulnerable to this issue. OpenSSL 1.1.1 and 1.0.2 are not affected by this issue.",
          "title": "CVE Description"
        },
        {
          "audience": "operational management and system administrators",
          "category": "description",
          "text": "Vulnerability potentially exploitable with manipulated SW upgrade package on USB memory.\nThe vulnerability is fixed in openssl debian package 3.0.18-1~deb12u2.\n\nIn the device context, there are deviations from the original CVSS assessment. Attack vector is set to \u0027local\u0027 because firmware upgrades are only possible though an attached USB memory, not through the network.",
          "title": "Vulnerability Characterisation"
        }
      ],
      "product_status": {
        "fixed": [
          "CSAFPID-32000",
          "CSAFPID-32001",
          "CSAFPID-52002"
        ],
        "known_affected": [
          "CSAFPID-31000",
          "CSAFPID-31001",
          "CSAFPID-51002"
        ],
        "recommended": [
          "CSAFPID-32000",
          "CSAFPID-32001",
          "CSAFPID-52002"
        ]
      },
      "remediations": [
        {
          "category": "vendor_fix",
          "details": "Update MX Firmware to version 2.1.0",
          "product_ids": [
            "CSAFPID-31000"
          ]
        },
        {
          "category": "vendor_fix",
          "details": "Update MR Firmware to version 2.1.0",
          "product_ids": [
            "CSAFPID-31001"
          ]
        },
        {
          "category": "vendor_fix",
          "details": "Vulnerable debian openssl package shall be updated to openssl package version \t3.0.18-1~deb12u2 ",
          "product_ids": [
            "CSAFPID-51002"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 8.8,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "environmentalScore": 8.8,
            "environmentalSeverity": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "temporalScore": 8.8,
            "temporalSeverity": "HIGH",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "products": [
            "CSAFPID-51002"
          ]
        },
        {
          "cvss_v3": {
            "attackComplexity": "LOW",
            "attackVector": "LOCAL",
            "availabilityImpact": "HIGH",
            "baseScore": 7.8,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "environmentalScore": 7.8,
            "environmentalSeverity": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "temporalScore": 7.8,
            "temporalSeverity": "HIGH",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "products": [
            "CSAFPID-31000",
            "CSAFPID-31001"
          ]
        }
      ],
      "title": "OpenSSL vulnerability affecting SW upgrade packages"
    }
  ]
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

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.