Vulnerability-Lookup

GHSA-7RR6-C8RX-M78P

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

Details

Ghidra versions through 12.1.4 contain a heap use-after-free vulnerability in the decompiler's Funcdata::opInsertAfter function caused by stale INDIRECT effect-op references. Attackers can craft a malicious binary with a specific x86-64 sequence that triggers the vulnerability during decompilation, causing the decompile helper process to crash and denying service to analysts and automated analysis pipelines.

Severity

3.3 (Low)


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

4.8 (Medium)


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

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{
  "affected": [],
  "aliases": [
    "CVE-2026-100503"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-416"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-09-26T01:16:59Z",
    "severity": "MODERATE"
  },
  "details": "Ghidra versions through 12.1.4 contain a heap use-after-free vulnerability in the decompiler\u0027s Funcdata::opInsertAfter function caused by stale INDIRECT effect-op references. Attackers can craft a malicious binary with a specific x86-64 sequence that triggers the vulnerability during decompilation, causing the decompile helper process to crash and denying service to analysts and automated analysis pipelines.",
  "id": "GHSA-7rr6-c8rx-m78p",
  "modified": "2026-09-26T03:30:21Z",
  "published": "2026-09-26T03:30:21Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-100503"
    },
    {
      "type": "WEB",
      "url": "https://github.com/NationalSecurityAgency/ghidra/commit/5ef1ee4d7a25a65db195f3a70f681ca74440be61"
    },
    {
      "type": "WEB",
      "url": "https://github.com/NationalSecurityAgency/ghidra"
    },
    {
      "type": "WEB",
      "url": "https://github.com/NationalSecurityAgency/ghidra/blob/8b6bbb857accdfa20dc5b2f5dea471178c2e9fbc/Ghidra/Features/Decompiler/src/decompile/cpp/merge.cc#L462-L472"
    },
    {
      "type": "WEB",
      "url": "https://github.com/NationalSecurityAgency/ghidra/blob/8b6bbb857accdfa20dc5b2f5dea471178c2e9fbc/Ghidra/Features/Decompiler/src/decompile/cpp/subflow.cc#L2717-L2745"
    },
    {
      "type": "WEB",
      "url": "https://www.vulncheck.com/advisories/ghidra-through-12.1.4-heap-use-after-free-in-decompiler"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:L/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-2026-100503 (GCVE-0-2026-100503)

Vulnerability from cvelistv5 – Published: 2026-09-26 00:36 – Updated: 2026-09-29 17:24

Title

Ghidra through 12.1.4 Heap Use-After-Free in Decompiler

Summary

Severity

4.8 (Medium)


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

3.3 (Low)


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

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-09-29 17:23 UTC

CWE

CWE-416 - Use After Free

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

2026-08-26 00:00

Show details on NVD website

JSON

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                "id": "CVE-2026-100503",
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                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-09-29T17:23:50.475506Z",
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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.

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GHSA-7RR6-C8RX-M78P

CVE-2026-100503 (GCVE-0-2026-100503)

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Nomenclature

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