CWE-665

Improper Initialization

The product does not initialize or incorrectly initializes a resource, which might leave the resource in an unexpected state when it is accessed or used.

CVE-2026-0940 (GCVE-0-2026-0940)

Vulnerability from cvelistv5 – Published: 2026-03-11 20:21 – Updated: 2026-03-13 03:55
VLAI
Summary
A potential improper initialization vulnerability was reported in the BIOS of some ThinkPads that could allow a local privileged user to modify data and execute arbitrary code.
CWE
  • CWE-665 - Improper Initialization
Assigner
Credits
Lenovo thanks Krzysztof Okupski of IOActive for reporting this issue.
Show details on NVD website

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-0940",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-03-12T00:00:00+00:00",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-03-13T03:55:41.336Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "ThinkPad T14 Gen 5 BIOS",
          "vendor": "Lenovo",
          "versions": [
            {
              "lessThanOrEqual": "1.17",
              "status": "affected",
              "version": "0",
              "versionType": "custom"
            }
          ]
        },
        {
          "defaultStatus": "unaffected",
          "product": "ThinkPad P14s Gen 5 BIOS",
          "vendor": "Lenovo",
          "versions": [
            {
              "lessThanOrEqual": "1.17",
              "status": "affected",
              "version": "0",
              "versionType": "custom"
            }
          ]
        },
        {
          "defaultStatus": "unaffected",
          "product": "ThinkPad Z13 Gen 2 BIOS",
          "vendor": "Lenovo",
          "versions": [
            {
              "lessThanOrEqual": "1.37",
              "status": "affected",
              "version": "0",
              "versionType": "custom"
            }
          ]
        },
        {
          "defaultStatus": "unaffected",
          "product": "ThinkPad Z16 Gen 2 BIOS",
          "vendor": "Lenovo",
          "versions": [
            {
              "lessThanOrEqual": "1.37",
              "status": "affected",
              "version": "0",
              "versionType": "custom"
            }
          ]
        },
        {
          "defaultStatus": "unaffected",
          "product": "ThinkPad P16v Gen 1 BIOS",
          "vendor": "Lenovo",
          "versions": [
            {
              "lessThanOrEqual": "1.62",
              "status": "affected",
              "version": "0",
              "versionType": "custom"
            }
          ]
        },
        {
          "defaultStatus": "unaffected",
          "product": "ThinkPad P15v Gen 3 BIOS",
          "vendor": "Lenovo",
          "versions": [
            {
              "lessThanOrEqual": "1.28",
              "status": "affected",
              "version": "0",
              "versionType": "custom"
            }
          ]
        },
        {
          "defaultStatus": "unaffected",
          "product": "ThinkPad Z13 Gen 1 BIOS",
          "vendor": "Lenovo",
          "versions": [
            {
              "lessThanOrEqual": "1.76",
              "status": "affected",
              "version": "0",
              "versionType": "custom"
            }
          ]
        },
        {
          "defaultStatus": "unaffected",
          "product": "ThinkPad Z16 Gen 1 BIOS",
          "vendor": "Lenovo",
          "versions": [
            {
              "lessThanOrEqual": "1.76",
              "status": "affected",
              "version": "0",
              "versionType": "custom"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:a:lenovo:thinkpad_t14_gen_5_bios:*:*:*:*:*:*:*:*",
                  "versionEndIncluding": "1.17",
                  "versionStartIncluding": "0",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            },
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:a:lenovo:thinkpad_p14s_gen_5_bios:*:*:*:*:*:*:*:*",
                  "versionEndIncluding": "1.17",
                  "versionStartIncluding": "0",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            },
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:a:lenovo:thinkpad_z13_gen_2_bios:*:*:*:*:*:*:*:*",
                  "versionEndIncluding": "1.37",
                  "versionStartIncluding": "0",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            },
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:a:lenovo:thinkpad_z16_gen_2_bios:*:*:*:*:*:*:*:*",
                  "versionEndIncluding": "1.37",
                  "versionStartIncluding": "0",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            },
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:a:lenovo:thinkpad_p16v_gen_1_bios:*:*:*:*:*:*:*:*",
                  "versionEndIncluding": "1.62",
                  "versionStartIncluding": "0",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            },
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:a:lenovo:thinkpad_p15v_gen_3_bios:*:*:*:*:*:*:*:*",
                  "versionEndIncluding": "1.28",
                  "versionStartIncluding": "0",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            },
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:a:lenovo:thinkpad_z13_gen_1_bios:*:*:*:*:*:*:*:*",
                  "versionEndIncluding": "1.76",
                  "versionStartIncluding": "0",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            },
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:a:lenovo:thinkpad_z16_gen_1_bios:*:*:*:*:*:*:*:*",
                  "versionEndIncluding": "1.76",
                  "versionStartIncluding": "0",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ],
          "operator": "OR"
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "value": "Lenovo thanks Krzysztof Okupski of IOActive for reporting this issue."
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "\u003cdiv\u003e\u003cdiv\u003e\u003cdiv\u003e\u003cp\u003eA potential improper initialization vulnerability was reported in the BIOS of some ThinkPads that could allow a local privileged user to modify data and execute arbitrary code.\u003c/p\u003e\u003c/div\u003e\u003c/div\u003e\u003c/div\u003e"
            }
          ],
          "value": "A potential improper initialization vulnerability was reported in the BIOS of some ThinkPads that could allow a local privileged user to modify data and execute arbitrary code."
        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "Automatable": "NOT_DEFINED",
            "Recovery": "NOT_DEFINED",
            "Safety": "NOT_DEFINED",
            "attackComplexity": "LOW",
            "attackRequirements": "NONE",
            "attackVector": "LOCAL",
            "baseScore": 8.4,
            "baseSeverity": "HIGH",
            "privilegesRequired": "HIGH",
            "providerUrgency": "NOT_DEFINED",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "NONE",
            "subIntegrityImpact": "NONE",
            "userInteraction": "NONE",
            "valueDensity": "NOT_DEFINED",
            "vectorString": "CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N",
            "version": "4.0",
            "vulnAvailabilityImpact": "HIGH",
            "vulnConfidentialityImpact": "HIGH",
            "vulnIntegrityImpact": "HIGH",
            "vulnerabilityResponseEffort": "NOT_DEFINED"
          },
          "format": "CVSS",
          "scenarios": [
            {
              "lang": "en",
              "value": "GENERAL"
            }
          ]
        },
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "LOCAL",
            "availabilityImpact": "HIGH",
            "baseScore": 6.7,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "HIGH",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "format": "CVSS",
          "scenarios": [
            {
              "lang": "en",
              "value": "GENERAL"
            }
          ]
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-665",
              "description": "CWE-665: Improper Initialization",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-03-11T20:21:17.160Z",
        "orgId": "da227ddf-6e25-4b41-b023-0f976dcaca4b",
        "shortName": "lenovo"
      },
      "references": [
        {
          "url": "https://support.lenovo.com/us/en/product_security/LEN-213040"
        }
      ],
      "solutions": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "Update to the version (or newer) indicated for your model in the Product Impact section of the advisory:\u0026nbsp;\u003ca target=\"_blank\" rel=\"nofollow\" href=\"https://support.lenovo.com/us/en/product_security/LEN-213040\"\u003ehttps://support.lenovo.com/us/en/product_security/LEN-213040\u003c/a\u003e\u003cbr\u003e"
            }
          ],
          "value": "Update to the version (or newer) indicated for your model in the Product Impact section of the advisory:\u00a0 https://support.lenovo.com/us/en/product_security/LEN-213040"
        }
      ],
      "source": {
        "discovery": "UNKNOWN"
      },
      "x_generator": {
        "engine": "Vulnogram 0.3.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "da227ddf-6e25-4b41-b023-0f976dcaca4b",
    "assignerShortName": "lenovo",
    "cveId": "CVE-2026-0940",
    "datePublished": "2026-03-11T20:21:17.160Z",
    "dateReserved": "2026-01-14T14:41:45.333Z",
    "dateUpdated": "2026-03-13T03:55:41.336Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

CVE-2026-26958 (GCVE-0-2026-26958)

Vulnerability from cvelistv5 – Published: 2026-02-19 23:01 – Updated: 2026-02-20 15:39
VLAI
Title
filippo.io/edwards25519 MultiScalarMult function produces invalid results or undefined behavior if receiver is not the identity
Summary
filippo.io/edwards25519 is a Go library implementing the edwards25519 elliptic curve with APIs for building cryptographic primitives. In versions 1.1.0 and earlier, MultiScalarMult produces invalid results or undefined behavior if the receiver is not the identity point. If (*Point).MultiScalarMult is called on an initialized point that is not the identity point, it returns an incorrect result. If the method is called on an uninitialized point, the behavior is undefined. In particular, if the receiver is the zero value, MultiScalarMult returns an invalid point that compares Equal to every other point. Note that MultiScalarMult is a rarely used, advanced API. For example, users who depend on filippo.io/edwards25519 only through github.com/go-sql-driver/mysql are not affected. This issue has been fixed in version 1.1.1.
CWE
  • CWE-665 - Improper Initialization
Assigner
Impacted products
Show details on NVD website

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-26958",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-02-20T15:27:08.887006Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-02-20T15:39:04.748Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "filippo.io/edwards25519",
          "vendor": "FiloSottile",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 1.1.1"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "filippo.io/edwards25519 is a Go library implementing the edwards25519 elliptic curve with APIs for building cryptographic primitives. In versions 1.1.0 and earlier, MultiScalarMult produces invalid results or undefined behavior if the receiver is not the identity point. If (*Point).MultiScalarMult is called on an initialized point that is not the identity point, it returns an incorrect result. If the method is called on an uninitialized point, the behavior is undefined. In particular, if the receiver is the zero value, MultiScalarMult returns an invalid point that compares Equal to every other point. Note that MultiScalarMult is a rarely used, advanced API. For example, users who depend on filippo.io/edwards25519 only through github.com/go-sql-driver/mysql are not affected. This issue has been fixed in version 1.1.1."
        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "attackComplexity": "HIGH",
            "attackRequirements": "PRESENT",
            "attackVector": "NETWORK",
            "baseScore": 1.7,
            "baseSeverity": "LOW",
            "privilegesRequired": "NONE",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "NONE",
            "subIntegrityImpact": "NONE",
            "userInteraction": "NONE",
            "vectorString": "CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U",
            "version": "4.0",
            "vulnAvailabilityImpact": "LOW",
            "vulnConfidentialityImpact": "NONE",
            "vulnIntegrityImpact": "NONE"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-665",
              "description": "CWE-665: Improper Initialization",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-02-19T23:01:26.923Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/FiloSottile/edwards25519/security/advisories/GHSA-fw7p-63qq-7hpr",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/FiloSottile/edwards25519/security/advisories/GHSA-fw7p-63qq-7hpr"
        },
        {
          "name": "https://github.com/FiloSottile/edwards25519/commit/d1c650afb95fad0742b98d95f2eb2cf031393abb",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/FiloSottile/edwards25519/commit/d1c650afb95fad0742b98d95f2eb2cf031393abb"
        },
        {
          "name": "https://github.com/FiloSottile/edwards25519/releases/tag/v1.1.1",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/FiloSottile/edwards25519/releases/tag/v1.1.1"
        }
      ],
      "source": {
        "advisory": "GHSA-fw7p-63qq-7hpr",
        "discovery": "UNKNOWN"
      },
      "title": "filippo.io/edwards25519 MultiScalarMult function produces invalid results or undefined behavior if receiver is not the identity"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2026-26958",
    "datePublished": "2026-02-19T23:01:26.923Z",
    "dateReserved": "2026-02-16T22:20:28.611Z",
    "dateUpdated": "2026-02-20T15:39:04.748Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

CVE-2026-34553 (GCVE-0-2026-34553)

Vulnerability from cvelistv5 – Published: 2026-03-31 22:17 – Updated: 2026-04-03 16:42
VLAI
Title
iccDEV: DoS in CIccCLUT::Iterate() & CIccMBB::Describe()
Summary
iccDEV provides a set of libraries and tools for working with ICC color management profiles. Prior to version 2.3.1.6, there is a defect in LUT dump/iteration logic affecting CIccCLUT::Iterate() and output produced by CIccMBB::Describe() (via CLUT dumping). This issue has been patched in version 2.3.1.6.
CWE
  • CWE-562 - Return of Stack Variable Address
  • CWE-665 - Improper Initialization
Assigner
Impacted products
Show details on NVD website

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-34553",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-04-03T16:42:28.325586Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-04-03T16:42:40.873Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "iccDEV",
          "vendor": "InternationalColorConsortium",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 2.3.1.6"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "iccDEV provides a set of libraries and tools for working with ICC color management profiles. Prior to version 2.3.1.6, there is a defect in LUT dump/iteration logic affecting CIccCLUT::Iterate() and output produced by CIccMBB::Describe() (via CLUT dumping). This issue has been patched in version 2.3.1.6."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "LOCAL",
            "availabilityImpact": "NONE",
            "baseScore": 4,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "LOW",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-562",
              "description": "CWE-562: Return of Stack Variable Address",
              "lang": "en",
              "type": "CWE"
            }
          ]
        },
        {
          "descriptions": [
            {
              "cweId": "CWE-665",
              "description": "CWE-665: Improper Initialization",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-03-31T22:17:30.597Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/InternationalColorConsortium/iccDEV/security/advisories/GHSA-5r4q-77w5-3q3h",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/InternationalColorConsortium/iccDEV/security/advisories/GHSA-5r4q-77w5-3q3h"
        },
        {
          "name": "https://github.com/InternationalColorConsortium/iccDEV/issues/704",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/InternationalColorConsortium/iccDEV/issues/704"
        },
        {
          "name": "https://github.com/InternationalColorConsortium/iccDEV/pull/737",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/InternationalColorConsortium/iccDEV/pull/737"
        }
      ],
      "source": {
        "advisory": "GHSA-5r4q-77w5-3q3h",
        "discovery": "UNKNOWN"
      },
      "title": "iccDEV: DoS in CIccCLUT::Iterate() \u0026 CIccMBB::Describe()"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2026-34553",
    "datePublished": "2026-03-31T22:17:30.597Z",
    "dateReserved": "2026-03-30T16:31:39.264Z",
    "dateUpdated": "2026-04-03T16:42:40.873Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}








Mitigation ID: MIT-3

Phase: Requirements

Strategy: Language Selection

Description:

  • Use a language that does not allow this weakness to occur or provides constructs that make this weakness easier to avoid.
  • For example, in Java, if the programmer does not explicitly initialize a variable, then the code could produce a compile-time error (if the variable is local) or automatically initialize the variable to the default value for the variable's type. In Perl, if explicit initialization is not performed, then a default value of undef is assigned, which is interpreted as 0, false, or an equivalent value depending on the context in which the variable is accessed.
Mitigation

Phase: Architecture and Design

Description:

  • Identify all variables and data stores that receive information from external sources, and apply input validation to make sure that they are only initialized to expected values.
Mitigation

Phase: Implementation

Description:

  • Explicitly initialize all your variables and other data stores, either during declaration or just before the first usage.
Mitigation

Phase: Implementation

Description:

  • Pay close attention to complex conditionals that affect initialization, since some conditions might not perform the initialization.
Mitigation

Phase: Implementation

Description:

  • Avoid race conditions (CWE-362) during initialization routines.
Mitigation

Phase: Build and Compilation

Description:

  • Run or compile your product with settings that generate warnings about uninitialized variables or data.
CAPEC-26: Leveraging Race Conditions

The adversary targets a race condition occurring when multiple processes access and manipulate the same resource concurrently, and the outcome of the execution depends on the particular order in which the access takes place. The adversary can leverage a race condition by "running the race", modifying the resource and modifying the normal execution flow. For instance, a race condition can occur while accessing a file: the adversary can trick the system by replacing the original file with their version and cause the system to read the malicious file.

CAPEC-29: Leveraging Time-of-Check and Time-of-Use (TOCTOU) Race Conditions

This attack targets a race condition occurring between the time of check (state) for a resource and the time of use of a resource. A typical example is file access. The adversary can leverage a file access race condition by "running the race", meaning that they would modify the resource between the first time the target program accesses the file and the time the target program uses the file. During that period of time, the adversary could replace or modify the file, causing the application to behave unexpectedly.

Back to CWE stats page