Vulnerability-Lookup

GHSA-9626-78XH-92CX

Vulnerability from github – Published: 2026-06-12 15:30 – Updated: 2026-06-12 15:30

Details

MobaXterm Personal Edition (Portable), in its 26.3 version (Build 5154), allows arbitrary code execution by loading malicious DLLs from a temporary directory that is predictable and can be modified by the user. During startup, the application searches for specific DLLs in this location before resorting to the system’s secure paths, enabling an attacker with local access to place a specially crafted DLL to be executed automatically when the victim launches the application.

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

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{
  "affected": [],
  "aliases": [
    "CVE-2026-11879"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-427"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-06-12T14:16:29Z",
    "severity": "HIGH"
  },
  "details": "MobaXterm Personal Edition (Portable), in its 26.3 version (Build 5154), allows arbitrary code execution by loading malicious DLLs from a temporary directory that is predictable and can be modified by the user. During startup, the application searches for specific DLLs in this location before resorting to the system\u2019s secure paths, enabling an attacker with local access to place a specially crafted DLL to be executed automatically when the victim launches the application.",
  "id": "GHSA-9626-78xh-92cx",
  "modified": "2026-06-12T15:30:34Z",
  "published": "2026-06-12T15:30:34Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-11879"
    },
    {
      "type": "WEB",
      "url": "https://www.incibe.es/en/incibe-cert/notices/aviso/multiple-vulnerabilities-mobateks-mobaxterm-personal-edition-portable"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "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/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-2026-11879 (GCVE-0-2026-11879)

Vulnerability from cvelistv5 – Published: 2026-06-12 13:29 – Updated: 2026-06-12 14:00

Title

Arbitrary code execution in MobaXterm Personal Edition (Portable)

Summary

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

SSVC

Exploitation: none Automatable: no Technical Impact: total

CISA Coordinator (v2.0.3)

CWE

CWE-427 - Uncontrolled Search Path Element

Assigner

INCIBE

References

1 reference

URL	Tags
https://www.incibe.es/en/incibe-cert/notices/avis…	patch

Impacted products

1 product

Vendor	Product	Version
Mobatek	MobaXterm Personal Edition (Portable)	Affected: 26.3 Unaffected: 26.4

Date Public

2026-06-12 10:00

Credits

Pedro J. Nunez-Cacho Fuentes (@tunelko)

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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.

Action not permitted

GHSA-9626-78XH-92CX

CVE-2026-11879 (GCVE-0-2026-11879)

Tags

Sightings

Nomenclature