Vulnerability-Lookup

GHSA-M3Q7-8JJF-CMCW

Vulnerability from github – Published: 2026-09-26 03:30 – Updated: 2026-09-26 03:30

Details

Ghidra versions through 12.1.4 contain a stack-based out-of-bounds write vulnerability in the decompiler's leftshift128 function when processing negative shift amounts from p-code. Attackers can craft malicious binaries with specific instruction sequences that trigger the overflow when decompiled, corrupting memory and potentially achieving code execution.

Severity

7.0 (High)


                  
                    CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H

7.3 (High)


                  
                    CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

Show details on source website

JSON

To clipboard

{
  "affected": [],
  "aliases": [
    "CVE-2026-100504"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-787"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-09-26T01:17:00Z",
    "severity": "HIGH"
  },
  "details": "Ghidra versions through 12.1.4 contain a stack-based out-of-bounds write vulnerability in the decompiler\u0027s leftshift128 function when processing negative shift amounts from p-code. Attackers can craft malicious binaries with specific instruction sequences that trigger the overflow when decompiled, corrupting memory and potentially achieving code execution.",
  "id": "GHSA-m3q7-8jjf-cmcw",
  "modified": "2026-09-26T03:30:22Z",
  "published": "2026-09-26T03:30:22Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-100504"
    },
    {
      "type": "WEB",
      "url": "https://github.com/NationalSecurityAgency/ghidra/commit/6babe3c1cec7f5ec920dd16cdc86a02893e5b33c"
    },
    {
      "type": "WEB",
      "url": "https://github.com/NationalSecurityAgency/ghidra"
    },
    {
      "type": "WEB",
      "url": "https://github.com/NationalSecurityAgency/ghidra/blob/8b6bbb857accdfa20dc5b2f5dea471178c2e9fbc/Ghidra/Features/Decompiler/src/decompile/cpp/multiprecision.cc#L29-L61"
    },
    {
      "type": "WEB",
      "url": "https://github.com/NationalSecurityAgency/ghidra/blob/8b6bbb857accdfa20dc5b2f5dea471178c2e9fbc/Ghidra/Features/Decompiler/src/decompile/cpp/ruleaction.cc#L7848-L7878"
    },
    {
      "type": "WEB",
      "url": "https://www.vulncheck.com/advisories/ghidra-through-12.1.4-stack-based-buffer-overflow-via-leftshift128"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/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:X/AU:X/R:X/V:X/RE:X/U:X",
      "type": "CVSS_V4"
    }
  ]
}

CVE-2026-100504 (GCVE-0-2026-100504)

Vulnerability from cvelistv5 – Published: 2026-09-26 00:36 – Updated: 2026-09-28 17:40

Title

Ghidra through 12.1.4 Stack-based Buffer Overflow via leftshift128

Summary

Severity

7.3 (High)


                        
                          CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

7 (High)


                        
                          CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H

SSVC

Exploitation: none Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-09-28 17:40 UTC

CWE

CWE-787 - Out-of-bounds Write

Assigner

VulnCheck mitre root Scorecard

References

5 references

URL	Tags
https://github.com/NationalSecurityAgency/ghidra/…	patch
https://github.com/NationalSecurityAgency/ghidra	product
https://github.com/NationalSecurityAgency/ghidra/…	technical-description
https://github.com/NationalSecurityAgency/ghidra/…	technical-description
https://www.vulncheck.com/advisories/ghidra-throu…	third-party-advisory

Impacted products

1 product

Vendor	Product	Version
NationalSecurityAgency	ghidra	Affected: 0 , ≤ 12.1.4 (custom) cpe:2.3:a:nsa:ghidra::::::::

Date Public

2026-09-08 00:00

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-100504",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-09-28T17:40:22.713904Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-09-28T17:40:31.876Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "packageURL": "pkg:github/nationalsecurityagency/ghidra",
          "product": "ghidra",
          "repo": "https://github.com/NationalSecurityAgency/ghidra",
          "vendor": "NationalSecurityAgency",
          "versions": [
            {
              "lessThanOrEqual": "12.1.4",
              "status": "affected",
              "version": "0",
              "versionType": "custom"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:a:nsa:ghidra:*:*:*:*:*:*:*:*",
                  "versionEndIncluding": "12.1.4",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "datePublic": "2026-09-08T00:00:00.000Z",
      "descriptions": [
        {
          "lang": "en",
          "value": "Ghidra versions through 12.1.4 contain a stack-based out-of-bounds write vulnerability in the decompiler\u0027s leftshift128 function when processing negative shift amounts from p-code. Attackers can craft malicious binaries with specific instruction sequences that trigger the overflow when decompiled, corrupting memory and potentially achieving code execution."
        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "attackComplexity": "LOW",
            "attackRequirements": "PRESENT",
            "attackVector": "LOCAL",
            "baseScore": 7.3,
            "baseSeverity": "HIGH",
            "privilegesRequired": "NONE",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "NONE",
            "subIntegrityImpact": "NONE",
            "userInteraction": "PASSIVE",
            "vectorString": "CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:P/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": "HIGH",
            "attackVector": "LOCAL",
            "availabilityImpact": "HIGH",
            "baseScore": 7,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "format": "CVSS"
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-787",
              "description": "Out-of-bounds Write",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-09-26T00:36:32.604Z",
        "orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
        "shortName": "VulnCheck"
      },
      "references": [
        {
          "name": "Patch Commit",
          "tags": [
            "patch"
          ],
          "url": "https://github.com/NationalSecurityAgency/ghidra/commit/6babe3c1cec7f5ec920dd16cdc86a02893e5b33c"
        },
        {
          "tags": [
            "product"
          ],
          "url": "https://github.com/NationalSecurityAgency/ghidra"
        },
        {
          "tags": [
            "technical-description"
          ],
          "url": "https://github.com/NationalSecurityAgency/ghidra/blob/8b6bbb857accdfa20dc5b2f5dea471178c2e9fbc/Ghidra/Features/Decompiler/src/decompile/cpp/multiprecision.cc#L29-L61"
        },
        {
          "tags": [
            "technical-description"
          ],
          "url": "https://github.com/NationalSecurityAgency/ghidra/blob/8b6bbb857accdfa20dc5b2f5dea471178c2e9fbc/Ghidra/Features/Decompiler/src/decompile/cpp/ruleaction.cc#L7848-L7878"
        },
        {
          "name": "VulnCheck Advisory: Ghidra through 12.1.4 Stack-based Buffer Overflow via leftshift128",
          "tags": [
            "third-party-advisory"
          ],
          "url": "https://www.vulncheck.com/advisories/ghidra-through-12.1.4-stack-based-buffer-overflow-via-leftshift128"
        }
      ],
      "title": "Ghidra through 12.1.4 Stack-based Buffer Overflow via leftshift128",
      "x_generator": {
        "engine": "vulncheck-endgame"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
    "assignerShortName": "VulnCheck",
    "cveId": "CVE-2026-100504",
    "datePublished": "2026-09-26T00:36:32.604Z",
    "dateReserved": "2026-09-25T22:14:36.046Z",
    "dateUpdated": "2026-09-28T17:40:31.876Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

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.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

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.

Action not permitted

GHSA-M3Q7-8JJF-CMCW

CVE-2026-100504 (GCVE-0-2026-100504)

Tags

Sightings

Nomenclature

Related by attack behaviour