CVE-2025-26399

NVD's normalized CPE 2.3 matchers, used by vendor tools (vulnerability scanners, asset managers) for automated detection. Compare with the CNA's free-text "Affected products" section above.

• cpe:2.3:a:solarwinds:web_help_desk:*:*:*:*:*:*:*:*
• cpe:2.3:a:solarwinds:web_help_desk:12.8.7:-:*:*:*:*:*:*

Reference list NVD curates from the CNA record, vendor advisories, and third-party reports. The tag chips below are NVD's analyst-assigned categories.

• https://documentation.solarwinds.com/en/success_center/whd/content/release_notes/whd_12-8-7-hotfix-1_release_notes.htm psirt@solarwinds.com Release Notes
• https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-26399 134c704f-9b21-4f2e-91b3-4a467353bcc0 US Government Resource
• https://www.microsoft.com/en-us/security/blog/2026/02/06/active-exploitation-solarwinds-web-help-desk/ 134c704f-9b21-4f2e-91b3-4a467353bcc0 Third Party Advisory
• https://www.solarwinds.com/trust-center/security-advisories/CVE-2025-26399 psirt@solarwinds.com PatchVendor Advisory

The full cvelistV5 record. Download as CVE-2025-26399.json.

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2025-26399",
                "options": [
                  {
                    "Exploitation": "active"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-09-23T00:00:00+00:00",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          },
          {
            "other": {
              "content": {
                "dateAdded": "2026-03-09",
                "reference": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-26399"
              },
              "type": "kev"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-03-10T03:55:22.393Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "references": [
          {
            "tags": [
              "third-party-advisory"
            ],
            "url": "https://www.microsoft.com/en-us/security/blog/2026/02/06/active-exploitation-solarwinds-web-help-desk/"
          },
          {
            "tags": [
              "government-resource"
            ],
            "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-26399"
          }
        ],
        "timeline": [
          {
            "lang": "en",
            "time": "2026-03-09T00:00:00.000Z",
            "value": "CVE-2025-26399 added to CISA KEV"
          }
        ],
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Web Help Desk",
          "vendor": "SolarWinds",
          "versions": [
            {
              "status": "affected",
              "version": "12.8.7 and below"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "reporter",
          "user": "00000000-0000-4000-9000-000000000000",
          "value": "Anonymous working with Trend Micro Zero Day Initiative"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "SolarWinds Web Help Desk was found to be susceptible to an unauthenticated AjaxProxy deserialization remote code execution vulnerability that, if exploited, would allow an attacker to run commands on the host machine. This vulnerability is a patch bypass of CVE-2024-28988, which in turn is a patch bypass of CVE-2024-28986."
            }
          ],
          "value": "SolarWinds Web Help Desk was found to be susceptible to an unauthenticated AjaxProxy deserialization remote code execution vulnerability that, if exploited, would allow an attacker to run commands on the host machine. This vulnerability is a patch bypass of CVE-2024-28988, which in turn is a patch bypass of CVE-2024-28986."
        }
      ],
      "impacts": [
        {
          "capecId": "CAPEC-248",
          "descriptions": [
            {
              "lang": "en",
              "value": "CAPEC-248: Untrusted Execution Flow"
            }
          ]
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 9.8,
            "baseSeverity": "CRITICAL",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "format": "CVSS",
          "scenarios": [
            {
              "lang": "en",
              "value": "GENERAL"
            }
          ]
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-502",
              "description": "CWE-502: Deserialization of Untrusted Data",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-09-23T05:07:14.702Z",
        "orgId": "49f11609-934d-4621-84e6-e02e032104d6",
        "shortName": "SolarWinds"
      },
      "references": [
        {
          "url": "https://www.solarwinds.com/trust-center/security-advisories/CVE-2025-26399"
        },
        {
          "url": "https://documentation.solarwinds.com/en/success_center/whd/content/release_notes/whd_12-8-7-hotfix-1_release_notes.htm"
        }
      ],
      "solutions": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "SolarWinds recommends customers to upgrade to Web Help Desk version 12.8.7 HF1 as soon as is practical."
            }
          ],
          "value": "SolarWinds recommends customers to upgrade to Web Help Desk version 12.8.7 HF1 as soon as is practical."
        }
      ],
      "source": {
        "discovery": "EXTERNAL"
      },
      "title": "SolarWinds Web Help Desk Deserialization of Untrusted Data Privilege Escalation Vulnerability",
      "x_generator": {
        "engine": "Vulnogram 0.1.0-dev"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "49f11609-934d-4621-84e6-e02e032104d6",
    "assignerShortName": "SolarWinds",
    "cveId": "CVE-2025-26399",
    "datePublished": "2025-09-23T05:07:14.702Z",
    "dateReserved": "2025-02-08T00:19:09.395Z",
    "dateUpdated": "2026-03-10T03:55:22.393Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}