Vulnerability-Lookup

CVE-2026-40118 (GCVE-0-2026-40118)

Vulnerability from cvelistv5 – Published: 2026-04-16 04:19 – Updated: 2026-04-16 13:00

Summary

UDP Console provided by Arcserve contains an incorrectly specified destination in a communication channel vulnerability. When a user configures an activation server hostname of the affected product to a dummy URL, the product may unintentionally communicate with the dummy domain, causing information disclosure.

Severity

6.3 (Medium)


                        
                          CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L

5.1 (Medium)


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

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-04-16 13:00 UTC

CWE

CWE-941 - Incorrectly specified destination in a communication channel

Assigner

jpcert jpcert root

References

2 references

URL	Tags
https://support.arcserve.com/s/article/P00003790?…
https://jvn.jp/en/jp/JVN88396700/

Impacted products

1 product

Vendor	Product	Version	CPE status
Arcserve	UDP Console	Affected: 10.3	guessed

Show details on NVD website

JSON

To clipboard

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FKIE_CVE-2026-40118

Vulnerability from fkie_nvd - Published: 2026-04-16 05:16 - Updated: 2026-06-17 10:44

Severity

6.3 (Medium) - CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L

Summary

References

	URL	Tags
	vultures@jpcert.or.jp	https://jvn.jp/en/jp/JVN88396700/
	vultures@jpcert.or.jp	https://support.arcserve.com/s/article/P00003790?language=en_US&r=94&ui-knowledge-components-aura-actions.KnowledgeArticleVersionCreateDraftFromOnlineAction.createDraftFromOnlineArticle=1

Impacted products

	Vendor	Product	Version

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "UDP Console",
          "vendor": "Arcserve",
          "versions": [
            {
              "status": "affected",
              "version": "10.3"
            }
          ]
        }
      ],
      "source": "vultures@jpcert.or.jp"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "UDP Console provided by Arcserve contains an incorrectly specified destination in a communication channel vulnerability. When a user configures an activation server hostname of the affected product to a dummy URL, the product may unintentionally communicate with the dummy domain, causing information disclosure."
    }
  ],
  "id": "CVE-2026-40118",
  "lastModified": "2026-06-17T10:44:45.220",
  "metrics": {
    "cvssMetricV30": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "LOW",
          "baseScore": 6.3,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "LOW",
          "integrityImpact": "LOW",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "REQUIRED",
          "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L",
          "version": "3.0"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 3.4,
        "source": "vultures@jpcert.or.jp",
        "type": "Secondary"
      }
    ],
    "cvssMetricV40": [
      {
        "cvssData": {
          "Automatable": "NOT_DEFINED",
          "Recovery": "NOT_DEFINED",
          "Safety": "NOT_DEFINED",
          "attackComplexity": "LOW",
          "attackRequirements": "NONE",
          "attackVector": "NETWORK",
          "availabilityRequirement": "NOT_DEFINED",
          "baseScore": 5.1,
          "baseSeverity": "MEDIUM",
          "confidentialityRequirement": "NOT_DEFINED",
          "exploitMaturity": "NOT_DEFINED",
          "integrityRequirement": "NOT_DEFINED",
          "modifiedAttackComplexity": "NOT_DEFINED",
          "modifiedAttackRequirements": "NOT_DEFINED",
          "modifiedAttackVector": "NOT_DEFINED",
          "modifiedPrivilegesRequired": "NOT_DEFINED",
          "modifiedSubAvailabilityImpact": "NOT_DEFINED",
          "modifiedSubConfidentialityImpact": "NOT_DEFINED",
          "modifiedSubIntegrityImpact": "NOT_DEFINED",
          "modifiedUserInteraction": "NOT_DEFINED",
          "modifiedVulnAvailabilityImpact": "NOT_DEFINED",
          "modifiedVulnConfidentialityImpact": "NOT_DEFINED",
          "modifiedVulnIntegrityImpact": "NOT_DEFINED",
          "privilegesRequired": "NONE",
          "providerUrgency": "NOT_DEFINED",
          "subAvailabilityImpact": "NONE",
          "subConfidentialityImpact": "NONE",
          "subIntegrityImpact": "NONE",
          "userInteraction": "ACTIVE",
          "valueDensity": "NOT_DEFINED",
          "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:L/VI:L/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",
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        "source": "vultures@jpcert.or.jp",
        "type": "Secondary"
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    "ssvcV203": [
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          "options": [
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}

GHSA-RHF4-34XG-3V3J

Vulnerability from github – Published: 2026-04-16 06:31 – Updated: 2026-04-16 06:31

Details

Severity

6.3 (Medium)


                  
                    CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L

5.1 (Medium)


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

Show details on source website

JSON

To clipboard

{
  "affected": [],
  "aliases": [
    "CVE-2026-40118"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-941"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-04-16T05:16:14Z",
    "severity": "MODERATE"
  },
  "details": "UDP Console provided by Arcserve contains an incorrectly specified destination in a communication channel vulnerability. When a user configures an activation server hostname of the affected product to a dummy URL, the product may unintentionally communicate with the dummy domain, causing information disclosure.",
  "id": "GHSA-rhf4-34xg-3v3j",
  "modified": "2026-04-16T06:31:23Z",
  "published": "2026-04-16T06:31:23Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-40118"
    },
    {
      "type": "WEB",
      "url": "https://jvn.jp/en/jp/JVN88396700"
    },
    {
      "type": "WEB",
      "url": "https://support.arcserve.com/s/article/P00003790?language=en_US\u0026r=94\u0026ui-knowledge-components-aura-actions.KnowledgeArticleVersionCreateDraftFromOnlineAction.createDraftFromOnlineArticle=1"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:L/VI:L/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"
    }
  ]
}

JVNDB-2026-000056

Vulnerability from jvndb - Published: 2026-04-16 08:29 - Updated:2026-04-16 08:29

Severity

6.3 (Medium) - cvssV3_0 - CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L

Summary

Arcserve UDP Console vulnerable to redirect to a dummy URL

Details

UDP Console provided by Arcserve contains the following vulnerability.

Incorrectly specified destination in a communication channel (CWE-941) - CVE-2026-40118

Shingo Ando reported this vulnerability to IPA, IPA reported it to Arcserve, and JPCERT/CC coordinated with Arcserve to publish the advisory under Information Security Early Warning Partnership.

References

Type

URL

	JVN	https://jvn.jp/en/jp/JVN88396700/index.html
	CVE	https://www.cve.org/CVERecord?id=CVE-2026-40118
	No Mapping(CWE-Other)	https://www.ipa.go.jp/en/security/vulnerabilities/cwe.html

Impacted products

Vendor

Product

Arcserve

UDP Console

Show details on JVN DB website

JSON

To clipboard

{
  "@rdf:about": "https://jvndb.jvn.jp/en/contents/2026/JVNDB-2026-000056.html",
  "dc:date": "2026-04-16T17:29+09:00",
  "dcterms:issued": "2026-04-16T17:29+09:00",
  "dcterms:modified": "2026-04-16T17:29+09:00",
  "description": "UDP Console provided by Arcserve contains the following vulnerability.\u003ca href=\u0027https://cwe.mitre.org/data/definitions/941.html\u0027 target=\u0027_blank\u0027\u003e\u003c/a\u003e\u003cul\u003e\u003cli\u003eIncorrectly specified destination in a communication channel (CWE-941) - CVE-2026-40118\u003c/li\u003e\u003c/ul\u003eShingo Ando reported this vulnerability to IPA, IPA reported it to Arcserve, and JPCERT/CC coordinated with Arcserve to publish the advisory under Information Security Early Warning Partnership.",
  "link": "https://jvndb.jvn.jp/en/contents/2026/JVNDB-2026-000056.html",
  "sec:cpe": {
    "#text": "cpe:/a:arcserve:udp_console",
    "@product": "UDP Console",
    "@vendor": "Arcserve",
    "@version": "2.2"
  },
  "sec:cvss": {
    "@score": "6.3",
    "@severity": "Medium",
    "@type": "Base",
    "@vector": "CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L",
    "@version": "3.0"
  },
  "sec:identifier": "JVNDB-2026-000056",
  "sec:references": [
    {
      "#text": "https://jvn.jp/en/jp/JVN88396700/index.html",
      "@id": "JVN#88396700",
      "@source": "JVN"
    },
    {
      "#text": "https://www.cve.org/CVERecord?id=CVE-2026-40118",
      "@id": "CVE-2026-40118",
      "@source": "CVE"
    },
    {
      "#text": "https://www.ipa.go.jp/en/security/vulnerabilities/cwe.html",
      "@id": "CWE-Other",
      "@title": "No Mapping(CWE-Other)"
    }
  ],
  "title": "Arcserve UDP Console vulnerable to redirect to a dummy URL"
}

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.

Action not permitted

CVE-2026-40118 (GCVE-0-2026-40118)

FKIE_CVE-2026-40118

GHSA-RHF4-34XG-3V3J

JVNDB-2026-000056

Tags

Sightings

Nomenclature

Related by attack behaviour