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CVE-2026-28318 SolarWinds CVE debrief

CVE-2026-28318 is a HIGH severity vulnerability in SolarWinds Serv-U, classified as Uncontrolled Resource Consumption with a CVSS score of 7.5. It was published on 2026-06-05 and added to the CISA Known Exploited Vulnerabilities catalog on the same day, with a due date for mitigations of 2026-06-19. The vulnerability is described as an Uncontrolled Resource Consumption issue in SolarWinds Serv-U.

Vendor
SolarWinds
Product
Serv-U
CVSS
HIGH 7.5
CISA KEV
Listed
Original CVE published
2026-06-05
Original CVE updated
2026-06-05
Advisory published
2026-06-05
Advisory updated
2026-06-05

Who should care

Administrators and users of SolarWinds Serv-U are advised to apply mitigations per vendor instructions or follow applicable BOD 22-01 guidance for cloud services. If mitigations are unavailable, discontinuing use of the product is recommended.

Technical summary

The vulnerability is identified as CVE-2026-28318 and affects SolarWinds Serv-U. It is characterized as an Uncontrolled Resource Consumption vulnerability, which can lead to a denial-of-service (DoS) condition. The CVSS score for this vulnerability is 7.5, indicating a HIGH severity level.

Defensive priority

HIGH

Recommended defensive actions

  • Apply mitigations per vendor instructions.
  • Follow applicable BOD 22-01 guidance for cloud services.
  • Discontinue use of the product if mitigations are unavailable.

Evidence notes

The CISA Known Exploited Vulnerabilities catalog (resourceLinkAnnotations: cisa-kev) provides guidance on this vulnerability, including recommended actions and a due date for mitigations.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-28318 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-28318

    CVE Program - Official CVE Program record with source-provided CVE metadata.

  • CVE-2026-28318 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-28318

    NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

  • CISA Known Exploited Vulnerabilities catalog

    Publisher, destination, and source semantics verified

    URL: https://www.cisa.gov/known-exploited-vulnerabilities-catalog

    Cybersecurity and Infrastructure Security Agency - Official CISA catalog of vulnerabilities known to be exploited in the wild.

Supplemental references

  • Source item URL

    Unverified legacy reference

    URL: https://www.cisa.gov/sites/default/files/feeds/known_exploited_vulnerabilities.json

    cisa_kev

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.