github - ghsa-fff6-x26h-q5rp

GHSA-FFF6-X26H-Q5RP

Vulnerability from github – Published: 2025-10-16 21:31 – Updated: 2025-10-30 18:31

Details

D-Link Nuclias Connect firmware versions <= 1.3.1.4 contain an observable response discrepancy vulnerability. The application's 'Forgot Password' endpoint returns distinct JSON responses depending on whether the supplied email address is associated with an existing account. Because the responses differ in the data.exist boolean value, an unauthenticated remote attacker can enumerate valid email addresses/accounts on the server. NOTE: D-Link states that a fix is under development.

Severity ?

5.3 (Medium)


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

6.9 (Medium)


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

Show details on source website

JSON

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{
  "affected": [],
  "aliases": [
    "CVE-2025-34255"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-204"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-10-16T19:15:32Z",
    "severity": "MODERATE"
  },
  "details": "D-Link Nuclias Connect firmware versions \u003c= 1.3.1.4 contain an observable response discrepancy vulnerability.\u00a0The application\u0027s \u0027Forgot Password\u0027 endpoint returns distinct JSON responses depending on whether the supplied email address is associated with an existing account. Because the responses differ in the `data.exist` boolean value, an unauthenticated remote attacker can enumerate valid email addresses/accounts on the server.\u00a0NOTE: D-Link states that a fix is under development.",
  "id": "GHSA-fff6-x26h-q5rp",
  "modified": "2025-10-30T18:31:07Z",
  "published": "2025-10-16T21:31:15Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-34255"
    },
    {
      "type": "WEB",
      "url": "https://supportannouncement.us.dlink.com/security/publication.aspx?name=SAP10472"
    },
    {
      "type": "WEB",
      "url": "https://www.dlink.com/en/for-business/nuclias/nuclias-connect"
    },
    {
      "type": "WEB",
      "url": "https://www.vulncheck.com/advisories/dlink-nuclias-connect-forgot-password-account-enumeration"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/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-2025-34255 (GCVE-0-2025-34255)

Vulnerability from cvelistv5 – Published: 2025-10-16 18:52 – Updated: 2025-11-28 19:27

Summary

D-Link Nuclias Connect firmware versions <= 1.3.1.4 contain an observable response discrepancy vulnerability. The application's 'Forgot Password' endpoint returns distinct JSON responses depending on whether the supplied email address is associated with an existing account. Because the responses differ in the `data.exist` boolean value, an unauthenticated remote attacker can enumerate valid email addresses/accounts on the server. NOTE: D-Link states that a fix is under development.

Severity ?

6.9 (Medium)


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

CWE

CWE-204 - Observable Response Discrepancy

Assigner

VulnCheck

References

URL

Tags

	https://www.vulncheck.com/advisories/dlink-nuclia…	third-party-advisory
	https://www.dlink.com/en/for-business/nuclias/nuc…	product
	https://supportannouncement.us.dlink.com/security…	vendor-advisory

Impacted products

	Vendor	Product	Version
	D-Link	Nuclias Connect	Affected: * , < 1.3.1.4 (semver)

Credits

Alex Williams from Pellera Technologies

Show details on NVD website

JSON

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Sightings

Author	Source	Type	Date

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-FFF6-X26H-Q5RP

CVE-2025-34255 (GCVE-0-2025-34255)

Tags

Sightings

Nomenclature