CVE-2026-58106 (GCVE-0-2026-58106)

Vulnerability from cvelistv5 – Published: 2026-08-28 12:46 – Updated: 2026-08-28 18:27 X_Open Source
VLAI
Title
Incomplete fix for CVE-2025-40843: safe_strcpy is called with PATH_MAX into fullPath+2, writing 2 bytes past the buffer on every CodeChecker log invocation
Summary
CVE-2025-40843 https://github.com/advisories/GHSA-5xf2-f6ch-6p8r  was fixed by replacing unchecked strcpy() with a bounded safe_strcpy() helper. At ldlogger-tool-gcc.c:129 the destination passed to that helper is fullPath + 2, but the size passed down is the full PATH_MAX. safe_strcpy() is strncpy(), which NUL-pads the destination out to the whole n, so this site writes 4096 bytes into the 4094 that remain — a 2-byte stack overflow on every invocation, independent of the input path's length. This issue affects CodeChecker: through 6.28.2.
Severity
2 (Low)
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:L/SA:N/E:P/S:N/AU:Y/R:U/RE:L/U:Green
SSVC
Exploitation: poc Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-28 18:26 UTC
CWE
Assigner
ERIC CNA under the mitre root
CNA scorecard C 71/100 over 13 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
Ericsson CodeChecker Affected: 0 , ≤ 6.28.2 (python)
guessed Create a notification for this product.
Credits
Fatullayev Asadbek
Show details on NVD website
To clipboard 

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-58106",
                "options": [
                  {
                    "Exploitation": "poc"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-08-28T18:26:51.164522Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-08-28T18:27:22.857Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "references": [
          {
            "tags": [
              "exploit"
            ],
            "url": "https://github.com/Ericsson/codechecker/security/advisories/GHSA-9gcg-v8fg-39q8"
          }
        ],
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "CodeChecker",
          "vendor": "Ericsson",
          "versions": [
            {
              "lessThanOrEqual": "6.28.2",
              "status": "affected",
              "version": "0",
              "versionType": "python"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "value": "Fatullayev Asadbek"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "\u003cp\u003e\u003ca title=\"CVE-2025-40843\" href=\"https://github.com/advisories/GHSA-5xf2-f6ch-6p8r\" rel=\"noreferrer\"\u003eCVE-2025-40843\u003c/a\u003e\u0026nbsp;was fixed by replacing unchecked\u0026nbsp;\u003ccode\u003estrcpy()\u003c/code\u003e\u0026nbsp;with a bounded\u0026nbsp;\u003ccode\u003esafe_strcpy()\u003c/code\u003e\u0026nbsp;helper.\u003cbr\u003eAt\u0026nbsp;\u003ccode\u003eldlogger-tool-gcc.c:129\u003c/code\u003e\u0026nbsp;the destination passed to that helper is\u0026nbsp;\u003ccode\u003efullPath + 2\u003c/code\u003e, but the size\u003cbr\u003epassed down is the\u0026nbsp;\u003cstrong\u003efull\u003c/strong\u003e\u0026nbsp;\u003ccode\u003ePATH_MAX\u003c/code\u003e.\u0026nbsp;\u003ccode\u003esafe_strcpy()\u003c/code\u003e\u0026nbsp;is\u0026nbsp;\u003ccode\u003estrncpy()\u003c/code\u003e, which NUL-pads the\u003cbr\u003edestination out to the whole\u0026nbsp;\u003ccode\u003en\u003c/code\u003e, so this site writes 4096 bytes into the 4094 that remain \u2014 a\u003cbr\u003e2-byte stack overflow\u0026nbsp;\u003cstrong\u003eon every invocation\u003c/strong\u003e, independent of the input path\u0027s length.\u003c/p\u003e\u003cp\u003eThis issue affects CodeChecker: through 6.28.2.\u003c/p\u003e\u003cp\u003e\u003c/p\u003e"
            }
          ],
          "value": "CVE-2025-40843 https://github.com/advisories/GHSA-5xf2-f6ch-6p8r \u00a0was fixed by replacing unchecked\u00a0strcpy()\u00a0with a bounded\u00a0safe_strcpy()\u00a0helper.\nAt\u00a0ldlogger-tool-gcc.c:129\u00a0the destination passed to that helper is\u00a0fullPath + 2, but the size\npassed down is the\u00a0full\u00a0PATH_MAX.\u00a0safe_strcpy()\u00a0is\u00a0strncpy(), which NUL-pads the\ndestination out to the whole\u00a0n, so this site writes 4096 bytes into the 4094 that remain \u2014 a\n2-byte stack overflow\u00a0on every invocation, independent of the input path\u0027s length.\n\n\n\nThis issue affects CodeChecker: through 6.28.2."
        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "Automatable": "YES",
            "Recovery": "USER",
            "Safety": "NEGLIGIBLE",
            "attackComplexity": "LOW",
            "attackRequirements": "NONE",
            "attackVector": "LOCAL",
            "baseScore": 2,
            "baseSeverity": "LOW",
            "exploitMaturity": "PROOF_OF_CONCEPT",
            "privilegesRequired": "NONE",
            "providerUrgency": "GREEN",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "NONE",
            "subIntegrityImpact": "LOW",
            "userInteraction": "NONE",
            "valueDensity": "NOT_DEFINED",
            "vectorString": "CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:L/SA:N/E:P/S:N/AU:Y/R:U/RE:L/U:Green",
            "version": "4.0",
            "vulnAvailabilityImpact": "NONE",
            "vulnConfidentialityImpact": "NONE",
            "vulnIntegrityImpact": "LOW",
            "vulnerabilityResponseEffort": "LOW"
          },
          "format": "CVSS",
          "scenarios": [
            {
              "lang": "en",
              "value": "GENERAL"
            }
          ]
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-787",
              "description": "CWE-787 Out-of-bounds write",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-28T12:46:57.863Z",
        "orgId": "85b1779b-6ecd-4f52-bcc5-73eac4659dcf",
        "shortName": "ERIC"
      },
      "references": [
        {
          "tags": [
            "vendor-advisory"
          ],
          "url": "https://github.com/Ericsson/codechecker/security/advisories/GHSA-9gcg-v8fg-39q8"
        }
      ],
      "source": {
        "discovery": "INTERNAL"
      },
      "tags": [
        "x_open-source"
      ],
      "title": "Incomplete fix for CVE-2025-40843: safe_strcpy is called with PATH_MAX into fullPath+2, writing 2 bytes past the buffer on every CodeChecker log invocation",
      "x_generator": {
        "engine": "Vulnogram 0.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "85b1779b-6ecd-4f52-bcc5-73eac4659dcf",
    "assignerShortName": "ERIC",
    "cveId": "CVE-2026-58106",
    "datePublished": "2026-08-28T12:46:57.863Z",
    "dateReserved": "2026-06-29T10:41:35.472Z",
    "dateUpdated": "2026-08-28T18:27:22.857Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2026-58106",
      "date": "2026-10-14",
      "epss": "0.00166",
      "percentile": "0.05494"
    },
    "nvd": {
      "cve": {
        "affected": [
          {
            "affectedData": [
              {
                "defaultStatus": "unaffected",
                "product": "CodeChecker",
                "vendor": "Ericsson",
                "versions": [
                  {
                    "lessThanOrEqual": "6.28.2",
                    "status": "affected",
                    "version": "0",
                    "versionType": "python"
                  }
                ]
              }
            ],
            "source": "85b1779b-6ecd-4f52-bcc5-73eac4659dcf"
          }
        ],
        "cveTags": [],
        "descriptions": [
          {
            "lang": "en",
            "value": "CVE-2025-40843 https://github.com/advisories/GHSA-5xf2-f6ch-6p8r \u00a0was fixed by replacing unchecked\u00a0strcpy()\u00a0with a bounded\u00a0safe_strcpy()\u00a0helper.\nAt\u00a0ldlogger-tool-gcc.c:129\u00a0the destination passed to that helper is\u00a0fullPath + 2, but the size\npassed down is the\u00a0full\u00a0PATH_MAX.\u00a0safe_strcpy()\u00a0is\u00a0strncpy(), which NUL-pads the\ndestination out to the whole\u00a0n, so this site writes 4096 bytes into the 4094 that remain \u2014 a\n2-byte stack overflow\u00a0on every invocation, independent of the input path\u0027s length.\n\n\n\nThis issue affects CodeChecker: through 6.28.2."
          }
        ],
        "id": "CVE-2026-58106",
        "lastModified": "2026-09-01T21:07:58.980",
        "metrics": {
          "cvssMetricV40": [
            {
              "cvssData": {
                "Automatable": "YES",
                "Recovery": "USER",
                "Safety": "NEGLIGIBLE",
                "attackComplexity": "LOW",
                "attackRequirements": "NONE",
                "attackVector": "LOCAL",
                "availabilityRequirement": "NOT_DEFINED",
                "baseScore": 2.0,
                "baseSeverity": "LOW",
                "confidentialityRequirement": "NOT_DEFINED",
                "exploitMaturity": "PROOF_OF_CONCEPT",
                "integrityRequirement": "NOT_DEFINED",
                "modifiedAttackComplexity": "NOT_DEFINED",
                "modifiedAttackRequirements": "NOT_DEFINED",
                "modifiedAttackVector": "NOT_DEFINED",
                "modifiedPrivilegesRequired": "NOT_DEFINED",
                "modifiedSubAvailabilityImpact": "NOT_DEFINED",
                "modifiedSubConfidentialityImpact": "NOT_DEFINED",
                "modifiedSubIntegrityImpact": "NOT_DEFINED",
                "modifiedUserInteraction": "NOT_DEFINED",
                "modifiedVulnAvailabilityImpact": "NOT_DEFINED",
                "modifiedVulnConfidentialityImpact": "NOT_DEFINED",
                "modifiedVulnIntegrityImpact": "NOT_DEFINED",
                "privilegesRequired": "NONE",
                "providerUrgency": "GREEN",
                "subAvailabilityImpact": "NONE",
                "subConfidentialityImpact": "NONE",
                "subIntegrityImpact": "LOW",
                "userInteraction": "NONE",
                "valueDensity": "NOT_DEFINED",
                "vectorString": "CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:L/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:N/AU:Y/R:U/V:X/RE:L/U:Green",
                "version": "4.0",
                "vulnAvailabilityImpact": "NONE",
                "vulnConfidentialityImpact": "NONE",
                "vulnIntegrityImpact": "LOW",
                "vulnerabilityResponseEffort": "LOW"
              },
              "source": "85b1779b-6ecd-4f52-bcc5-73eac4659dcf",
              "type": "Secondary"
            }
          ],
          "ssvcV203": [
            {
              "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
              "ssvcData": {
                "id": "CVE-2026-58106",
                "options": [
                  {
                    "exploitation": "poc"
                  },
                  {
                    "automatable": "no"
                  },
                  {
                    "technicalImpact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-08-28T18:26:51.164522Z",
                "version": "2.0.3"
              }
            }
          ]
        },
        "published": "2026-08-28T16:18:18.137",
        "references": [
          {
            "source": "85b1779b-6ecd-4f52-bcc5-73eac4659dcf",
            "url": "https://github.com/Ericsson/codechecker/security/advisories/GHSA-9gcg-v8fg-39q8"
          },
          {
            "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
            "url": "https://github.com/Ericsson/codechecker/security/advisories/GHSA-9gcg-v8fg-39q8"
          }
        ],
        "sourceIdentifier": "85b1779b-6ecd-4f52-bcc5-73eac4659dcf",
        "vulnStatus": "Deferred",
        "weaknesses": [
          {
            "description": [
              {
                "lang": "en",
                "value": "CWE-787"
              }
            ],
            "source": "85b1779b-6ecd-4f52-bcc5-73eac4659dcf",
            "type": "Secondary"
          }
        ]
      }
    },
    "vulnrichment": {
      "containers": {
        "adp": [
          {
            "metrics": [
              {
                "other": {
                  "content": {
                    "id": "CVE-2026-58106",
                    "options": [
                      {
                        "Exploitation": "poc"
                      },
                      {
                        "Automatable": "no"
                      },
                      {
                        "Technical Impact": "partial"
                      }
                    ],
                    "role": "CISA Coordinator",
                    "timestamp": "2026-08-28T18:26:51.164522Z",
                    "version": "2.0.3"
                  },
                  "type": "ssvc"
                }
              }
            ],
            "providerMetadata": {
              "dateUpdated": "2026-08-28T18:27:09.893Z",
              "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
              "shortName": "CISA-ADP"
            },
            "references": [
              {
                "tags": [
                  "exploit"
                ],
                "url": "https://github.com/Ericsson/codechecker/security/advisories/GHSA-9gcg-v8fg-39q8"
              }
            ],
            "title": "CISA ADP Vulnrichment"
          }
        ],
        "cna": {
          "affected": [
            {
              "defaultStatus": "unaffected",
              "product": "CodeChecker",
              "vendor": "Ericsson",
              "versions": [
                {
                  "lessThanOrEqual": "6.28.2",
                  "status": "affected",
                  "version": "0",
                  "versionType": "python"
                }
              ]
            }
          ],
          "credits": [
            {
              "lang": "en",
              "type": "finder",
              "value": "Fatullayev Asadbek"
            }
          ],
          "descriptions": [
            {
              "lang": "en",
              "supportingMedia": [
                {
                  "base64": false,
                  "type": "text/html",
                  "value": "\u003cp\u003e\u003ca title=\"CVE-2025-40843\" href=\"https://github.com/advisories/GHSA-5xf2-f6ch-6p8r\" rel=\"noreferrer\"\u003eCVE-2025-40843\u003c/a\u003e\u0026nbsp;was fixed by replacing unchecked\u0026nbsp;\u003ccode\u003estrcpy()\u003c/code\u003e\u0026nbsp;with a bounded\u0026nbsp;\u003ccode\u003esafe_strcpy()\u003c/code\u003e\u0026nbsp;helper.\u003cbr\u003eAt\u0026nbsp;\u003ccode\u003eldlogger-tool-gcc.c:129\u003c/code\u003e\u0026nbsp;the destination passed to that helper is\u0026nbsp;\u003ccode\u003efullPath + 2\u003c/code\u003e, but the size\u003cbr\u003epassed down is the\u0026nbsp;\u003cstrong\u003efull\u003c/strong\u003e\u0026nbsp;\u003ccode\u003ePATH_MAX\u003c/code\u003e.\u0026nbsp;\u003ccode\u003esafe_strcpy()\u003c/code\u003e\u0026nbsp;is\u0026nbsp;\u003ccode\u003estrncpy()\u003c/code\u003e, which NUL-pads the\u003cbr\u003edestination out to the whole\u0026nbsp;\u003ccode\u003en\u003c/code\u003e, so this site writes 4096 bytes into the 4094 that remain \u2014 a\u003cbr\u003e2-byte stack overflow\u0026nbsp;\u003cstrong\u003eon every invocation\u003c/strong\u003e, independent of the input path\u0027s length.\u003c/p\u003e\u003cp\u003eThis issue affects CodeChecker: through 6.28.2.\u003c/p\u003e\u003cp\u003e\u003c/p\u003e"
                }
              ],
              "value": "CVE-2025-40843 https://github.com/advisories/GHSA-5xf2-f6ch-6p8r \u00a0was fixed by replacing unchecked\u00a0strcpy()\u00a0with a bounded\u00a0safe_strcpy()\u00a0helper.\nAt\u00a0ldlogger-tool-gcc.c:129\u00a0the destination passed to that helper is\u00a0fullPath + 2, but the size\npassed down is the\u00a0full\u00a0PATH_MAX.\u00a0safe_strcpy()\u00a0is\u00a0strncpy(), which NUL-pads the\ndestination out to the whole\u00a0n, so this site writes 4096 bytes into the 4094 that remain \u2014 a\n2-byte stack overflow\u00a0on every invocation, independent of the input path\u0027s length.\n\n\n\nThis issue affects CodeChecker: through 6.28.2."
            }
          ],
          "metrics": [
            {
              "cvssV4_0": {
                "Automatable": "YES",
                "Recovery": "USER",
                "Safety": "NEGLIGIBLE",
                "attackComplexity": "LOW",
                "attackRequirements": "NONE",
                "attackVector": "LOCAL",
                "baseScore": 2,
                "baseSeverity": "LOW",
                "exploitMaturity": "PROOF_OF_CONCEPT",
                "privilegesRequired": "NONE",
                "providerUrgency": "GREEN",
                "subAvailabilityImpact": "NONE",
                "subConfidentialityImpact": "NONE",
                "subIntegrityImpact": "LOW",
                "userInteraction": "NONE",
                "valueDensity": "NOT_DEFINED",
                "vectorString": "CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:L/SA:N/E:P/S:N/AU:Y/R:U/RE:L/U:Green",
                "version": "4.0",
                "vulnAvailabilityImpact": "NONE",
                "vulnConfidentialityImpact": "NONE",
                "vulnIntegrityImpact": "LOW",
                "vulnerabilityResponseEffort": "LOW"
              },
              "format": "CVSS",
              "scenarios": [
                {
                  "lang": "en",
                  "value": "GENERAL"
                }
              ]
            }
          ],
          "problemTypes": [
            {
              "descriptions": [
                {
                  "cweId": "CWE-787",
                  "description": "CWE-787 Out-of-bounds write",
                  "lang": "en",
                  "type": "CWE"
                }
              ]
            }
          ],
          "providerMetadata": {
            "dateUpdated": "2026-08-28T12:46:57.863Z",
            "orgId": "85b1779b-6ecd-4f52-bcc5-73eac4659dcf",
            "shortName": "ERIC"
          },
          "references": [
            {
              "tags": [
                "vendor-advisory"
              ],
              "url": "https://github.com/Ericsson/codechecker/security/advisories/GHSA-9gcg-v8fg-39q8"
            }
          ],
          "source": {
            "discovery": "INTERNAL"
          },
          "tags": [
            "x_open-source"
          ],
          "title": "Incomplete fix for CVE-2025-40843: safe_strcpy is called with PATH_MAX into fullPath+2, writing 2 bytes past the buffer on every CodeChecker log invocation",
          "x_generator": {
            "engine": "Vulnogram 0.2.0"
          }
        }
      },
      "cveMetadata": {
        "assignerOrgId": "85b1779b-6ecd-4f52-bcc5-73eac4659dcf",
        "assignerShortName": "ERIC",
        "cveId": "CVE-2026-58106",
        "datePublished": "2026-08-28T12:46:57.863Z",
        "dateReserved": "2026-06-29T10:41:35.472Z",
        "dateUpdated": "2026-08-28T18:27:22.857Z",
        "state": "PUBLISHED"
      },
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}



Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




Drag nodes to arrange them. Double-click a related vulnerability to open it, or a source to visit its link. The Physics button on the left tunes the layout and the simulation; the legend at the bottom left hides or shows nodes by kind and by sighting type.

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.
Vulnerability timeline

Sightings and recorded dates, grouped by day · UTC

JSON

Loading timeline…




    Related by attack behaviour

    Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.