Search

Find a vulnerability

Search criteria

    2 vulnerabilities by ncopa

    CVE-2026-82457 (GCVE-0-2026-82457)

    Vulnerability from nvd – Published: 2026-08-29 13:47 – Updated: 2026-08-29 13:47
    VLAI
    Title
    su-exec through 0.3 Privilege Escalation via Numeric User ID
    Summary
    su-exec through 0.3 fails to validate numeric user and group identifiers parsed with strtol before assigning to uid_t and gid_t, allowing truncation of out-of-range values to zero. Attackers can supply large numeric identifiers that truncate to root's identifier, causing su-exec to execute target programs with root privileges instead of intended unprivileged accounts.
    Severity
    8.5 (High)
    CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
    7.8 (High)
    CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
    CWE
    • CWE-681 - Incorrect Conversion between Numeric Types
    Assigner
    References
    Impacted products
    Vendor Product Version
    ncopa su-exec Affected: 0 , ≤ 0.3 (custom)
    		Create a notification for this product.
    Date Public
    2026-08-27 00:00
    Credits
    Ali Firas
    Show details on NVD website
    To clipboard 

    {
  "containers": {
    "cna": {
      "affected": [
        {
          "collectionURL": "https://github.com/ncopa/su-exec",
          "defaultStatus": "unaffected",
          "product": "su-exec",
          "repo": "https://github.com/ncopa/su-exec",
          "vendor": "ncopa",
          "versions": [
            {
              "lessThanOrEqual": "0.3",
              "status": "affected",
              "version": "0",
              "versionType": "custom"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "reporter",
          "value": "Ali Firas"
        }
      ],
      "datePublic": "2026-08-27T00:00:00.000Z",
      "descriptions": [
        {
          "lang": "en",
          "value": "su-exec through 0.3 fails to validate numeric user and group identifiers parsed with strtol before assigning to uid_t and gid_t, allowing truncation of out-of-range values to zero. Attackers can supply large numeric identifiers that truncate to root\u0027s identifier, causing su-exec to execute target programs with root privileges instead of intended unprivileged accounts."
        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "attackComplexity": "LOW",
            "attackRequirements": "NONE",
            "attackVector": "LOCAL",
            "baseScore": 8.5,
            "baseSeverity": "HIGH",
            "privilegesRequired": "LOW",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "NONE",
            "subIntegrityImpact": "NONE",
            "userInteraction": "NONE",
            "vectorString": "CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N",
            "version": "4.0",
            "vulnAvailabilityImpact": "HIGH",
            "vulnConfidentialityImpact": "HIGH",
            "vulnIntegrityImpact": "HIGH"
          },
          "format": "CVSS"
        },
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "LOCAL",
            "availabilityImpact": "HIGH",
            "baseScore": 7.8,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "format": "CVSS"
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-681",
              "description": "Incorrect Conversion between Numeric Types",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-29T13:47:58.176Z",
        "orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
        "shortName": "VulnCheck"
      },
      "references": [
        {
          "name": "Vulnerable code: su-exec.c (strtol into uid_t without range check)",
          "tags": [
            "technical-description"
          ],
          "url": "https://github.com/ncopa/su-exec/blob/89c016e6e08749d583efdeda04b9f73e1218e253/su-exec.c"
        },
        {
          "name": "Reporter\u0027s write-up",
          "tags": [
            "third-party-advisory"
          ],
          "url": "https://gist.github.com/thesmartshadow/ed96e2a88643c34a247c9b7cf9e311be"
        },
        {
          "tags": [
            "product"
          ],
          "url": "https://github.com/ncopa/su-exec"
        },
        {
          "name": "VulnCheck Advisory: su-exec through 0.3 Privilege Escalation via Numeric User ID",
          "tags": [
            "third-party-advisory"
          ],
          "url": "https://www.vulncheck.com/advisories/su-exec-through-0.3-privilege-escalation-via-numeric-user-id"
        }
      ],
      "title": "su-exec through 0.3 Privilege Escalation via Numeric User ID",
      "x_generator": {
        "engine": "vulncheck-endgame"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
    "assignerShortName": "VulnCheck",
    "cveId": "CVE-2026-82457",
    "datePublished": "2026-08-29T13:47:58.176Z",
    "dateReserved": "2026-08-29T13:23:00.303Z",
    "dateUpdated": "2026-08-29T13:47:58.176Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

    CVE-2026-82457 (GCVE-0-2026-82457)

    Vulnerability from cvelistv5 – Published: 2026-08-29 13:47 – Updated: 2026-08-29 13:47
    VLAI
    Title
    su-exec through 0.3 Privilege Escalation via Numeric User ID
    Summary
    su-exec through 0.3 fails to validate numeric user and group identifiers parsed with strtol before assigning to uid_t and gid_t, allowing truncation of out-of-range values to zero. Attackers can supply large numeric identifiers that truncate to root's identifier, causing su-exec to execute target programs with root privileges instead of intended unprivileged accounts.
    Severity
    8.5 (High)
    CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
    7.8 (High)
    CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
    CWE
    • CWE-681 - Incorrect Conversion between Numeric Types
    Assigner
    References
    Impacted products
    Vendor Product Version
    ncopa su-exec Affected: 0 , ≤ 0.3 (custom)
    		Create a notification for this product.
    Date Public
    2026-08-27 00:00
    Credits
    Ali Firas
    Show details on NVD website
    To clipboard 

    {
  "containers": {
    "cna": {
      "affected": [
        {
          "collectionURL": "https://github.com/ncopa/su-exec",
          "defaultStatus": "unaffected",
          "product": "su-exec",
          "repo": "https://github.com/ncopa/su-exec",
          "vendor": "ncopa",
          "versions": [
            {
              "lessThanOrEqual": "0.3",
              "status": "affected",
              "version": "0",
              "versionType": "custom"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "reporter",
          "value": "Ali Firas"
        }
      ],
      "datePublic": "2026-08-27T00:00:00.000Z",
      "descriptions": [
        {
          "lang": "en",
          "value": "su-exec through 0.3 fails to validate numeric user and group identifiers parsed with strtol before assigning to uid_t and gid_t, allowing truncation of out-of-range values to zero. Attackers can supply large numeric identifiers that truncate to root\u0027s identifier, causing su-exec to execute target programs with root privileges instead of intended unprivileged accounts."
        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "attackComplexity": "LOW",
            "attackRequirements": "NONE",
            "attackVector": "LOCAL",
            "baseScore": 8.5,
            "baseSeverity": "HIGH",
            "privilegesRequired": "LOW",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "NONE",
            "subIntegrityImpact": "NONE",
            "userInteraction": "NONE",
            "vectorString": "CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N",
            "version": "4.0",
            "vulnAvailabilityImpact": "HIGH",
            "vulnConfidentialityImpact": "HIGH",
            "vulnIntegrityImpact": "HIGH"
          },
          "format": "CVSS"
        },
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "LOCAL",
            "availabilityImpact": "HIGH",
            "baseScore": 7.8,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "format": "CVSS"
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-681",
              "description": "Incorrect Conversion between Numeric Types",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-29T13:47:58.176Z",
        "orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
        "shortName": "VulnCheck"
      },
      "references": [
        {
          "name": "Vulnerable code: su-exec.c (strtol into uid_t without range check)",
          "tags": [
            "technical-description"
          ],
          "url": "https://github.com/ncopa/su-exec/blob/89c016e6e08749d583efdeda04b9f73e1218e253/su-exec.c"
        },
        {
          "name": "Reporter\u0027s write-up",
          "tags": [
            "third-party-advisory"
          ],
          "url": "https://gist.github.com/thesmartshadow/ed96e2a88643c34a247c9b7cf9e311be"
        },
        {
          "tags": [
            "product"
          ],
          "url": "https://github.com/ncopa/su-exec"
        },
        {
          "name": "VulnCheck Advisory: su-exec through 0.3 Privilege Escalation via Numeric User ID",
          "tags": [
            "third-party-advisory"
          ],
          "url": "https://www.vulncheck.com/advisories/su-exec-through-0.3-privilege-escalation-via-numeric-user-id"
        }
      ],
      "title": "su-exec through 0.3 Privilege Escalation via Numeric User ID",
      "x_generator": {
        "engine": "vulncheck-endgame"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
    "assignerShortName": "VulnCheck",
    "cveId": "CVE-2026-82457",
    "datePublished": "2026-08-29T13:47:58.176Z",
    "dateReserved": "2026-08-29T13:23:00.303Z",
    "dateUpdated": "2026-08-29T13:47:58.176Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}