Vulnerability-Lookup

GHSA-R7G9-R28W-W2PQ

Vulnerability from github – Published: 2026-07-24 15:33 – Updated: 2026-07-24 15:33

Details

Stack-based Buffer Overflow (CWE-121) in /usr/bin/ltsudo cmd_ipaddr_conflict in Loytec LIP-ME201C, L-INX, L-GATE, L-ROC, L-IOB, L-DALI, L-VIS and L-PAD through 8.4.16 on LINX-A64 allows a superadmin-group attacker to trigger a SUID-root process abort or potentially elevate privileges via an overly long interface-name argument.

Severity

3.8 (Low)


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

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{
  "affected": [],
  "aliases": [
    "CVE-2026-55728"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-121"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-07-24T15:18:30Z",
    "severity": "LOW"
  },
  "details": "Stack-based Buffer Overflow (CWE-121)\u00a0in `/usr/bin/ltsudo` `cmd_ipaddr_conflict` in  Loytec LIP-ME201C,\u00a0L-INX, L-GATE, L-ROC, L-IOB, L-DALI, L-VIS and L-PAD through 8.4.16 on LINX-A64 allows a `superadmin`-group attacker to trigger a SUID-root process abort or potentially elevate privileges via an overly long interface-name argument.",
  "id": "GHSA-r7g9-r28w-w2pq",
  "modified": "2026-07-24T15:33:02Z",
  "published": "2026-07-24T15:33:02Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-55728"
    },
    {
      "type": "WEB",
      "url": "https://www.loytec.com/support/product-security/advisories/8523-dibt-cve-20260526-0005-stack-buffer-overflow-in-cmd_ipaddr_conflict-low"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:L/AC:L/AT:P/PR:H/UI:N/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N/E:U/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-2026-55728 (GCVE-0-2026-55728)

Vulnerability from cvelistv5 – Published: 2026-07-24 13:58 – Updated: 2026-07-24 14:56

Title

Loytec LINX firmware: Stack-based Buffer Overflow in cmd_ipaddr_conflict

Summary

Stack-based Buffer Overflow (CWE-121) in `/usr/bin/ltsudo` `cmd_ipaddr_conflict` in Loytec LIP-ME201C, L-INX, L-GATE, L-ROC, L-IOB, L-DALI, L-VIS and L-PAD through 8.4.16 on LINX-A64 allows a `superadmin`-group attacker to trigger a SUID-root process abort or potentially elevate privileges via an overly long interface-name argument.

Severity

3.8 (Low)


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

SSVC

Exploitation: none Automatable: no Technical Impact: total

CISA Coordinator (v2.0.3)

CWE

CWE-121 - Stack-based buffer overflow

Assigner

NCSC.ch

References

1 reference

URL	Tags
https://www.loytec.com/support/product-security/a…	vendor-advisory

Impacted products

8 products

Vendor	Product	Version
Loytec	LIP-ME20xC	Affected: 0 , ≤ 8.4.16 (custom)
Loytec	L-INX	Affected: 0 , ≤ 8.4.16 (custom)
Loytec	L-GATE	Affected: 0 , ≤ 8.4.16 (custom)
Loytec	L-ROC	Affected: 0 , ≤ 8.4.16 (custom)
Loytec	L-IOB	Affected: 0 , ≤ 8.4.16 (custom)
Loytec	L-DALI	Affected: 0 , ≤ 8.4.16 (custom)
Loytec	L-VIS	Affected: 0 , ≤ 8.4.16 (custom)
Loytec	L-PAD	Affected: 0 , ≤ 8.4.16 (custom)

Credits

Daniel Hulliger, armasuisse CYD Campus Damian Pfammatter, armasuisse CYD Campus

Show details on NVD website

JSON

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                "id": "CVE-2026-55728",
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                  },
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                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-07-24T14:55:52.913648Z",
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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-R7G9-R28W-W2PQ

CVE-2026-55728 (GCVE-0-2026-55728)

Tags

Sightings

Nomenclature