Vulnerability-Lookup

GHSA-FH65-C5X2-5936

Vulnerability from github – Published: 2025-08-20 18:30 – Updated: 2025-08-20 18:30

Details

LeapFTP < 3.1.x contains a stack-based buffer overflow vulnerability in its FTP client parser. When the client receives a directory listing containing a filename longer than 528 bytes, the application fails to properly bound-check the input and overwrites the Structured Exception Handler (SEH) chain. This allows an attacker operating a malicious FTP server to execute arbitrary code on the victim’s machine when the file is listed or downloaded.

Severity

9.3 (Critical)


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

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JSON

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{
  "affected": [],
  "aliases": [
    "CVE-2010-20049"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-121"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-08-20T16:15:33Z",
    "severity": "CRITICAL"
  },
  "details": "LeapFTP \u003c\u00a03.1.x contains a stack-based buffer overflow vulnerability in its FTP client parser. When the client receives a directory listing containing a filename longer than 528 bytes, the application fails to properly bound-check the input and overwrites the Structured Exception Handler (SEH) chain. This allows an attacker operating a malicious FTP server to execute arbitrary code on the victim\u2019s machine when the file is listed or downloaded.",
  "id": "GHSA-fh65-c5x2-5936",
  "modified": "2025-08-20T18:30:21Z",
  "published": "2025-08-20T18:30:21Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2010-20049"
    },
    {
      "type": "WEB",
      "url": "https://raw.githubusercontent.com/rapid7/metasploit-framework/master/modules/exploits/windows/ftp/leapftp_list_reply.rb"
    },
    {
      "type": "WEB",
      "url": "https://web.archive.org/web/20111013232627/http://www.leapware.com"
    },
    {
      "type": "WEB",
      "url": "https://web.archive.org/web/20111016194057/https://www.corelan.be/index.php/2010/10/12/death-of-an-ftp-client"
    },
    {
      "type": "WEB",
      "url": "https://www.exploit-db.com/exploits/16704"
    },
    {
      "type": "WEB",
      "url": "https://www.vulncheck.com/advisories/leapftp-stack-buffer-overflow"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/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-2010-20049 (GCVE-0-2010-20049)

Vulnerability from cvelistv5 – Published: 2025-08-20 15:36 – Updated: 2026-05-15 11:13 Unsupported When Assigned

Title

LeapFTP < 3.1.x Stack Buffer Overflow

Summary

Severity

9.3 (Critical)


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

SSVC

Exploitation: poc Automatable: yes Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2025-08-22 16:19 UTC

CWE

CWE-121 - Stack-based Buffer Overflow

Assigner

VulnCheck mitre root

References

5 references

URL	Tags
https://raw.githubusercontent.com/rapid7/metasplo…	exploit
https://www.exploit-db.com/exploits/16704	exploit
https://web.archive.org/web/20111016194057/https:…	technical-descriptionexploit
https://web.archive.org/web/20111013232627/http:/…	vendor-advisorypatch
https://www.vulncheck.com/advisories/leapftp-stac…	third-party-advisory

Impacted products

1 product

Vendor	Product	Version
LeapWare	LeapFTP	Affected: 0 , < 3.1.* (custom)

Date Public

2010-11-14 00:00

Credits

corelanc0d3r of Corelan Team

Show details on NVD website

JSON

To clipboard

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                  },
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                "timestamp": "2025-08-22T16:19:43.822466Z",
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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.

Detection rules are retrieved from Rulezet.

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.