MSRXVulnerabilities / CVE-2026-28318
CVE-2026-28318
Published 2026-06-04 · Analyzed
CVE-2026-28318
SolarWinds Serv-U Uncontrolled Resource Consumption Vulnerability
Exploited in the wild: CISA added it to the Known Exploited Vulnerabilities catalog on 2026-06-05, with a fix-by date of 2026-06-19. Patch it first.
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
7.5 HIGH
CVSS 3.1 · CNA · solarwinds.com
CVSS 3.1 · CNA · solarwinds.com
44%
chance of exploitation in the next 30 days (EPSS; higher than 98% of CVEs)
chance of exploitation in the next 30 days (EPSS; higher than 98% of CVEs)
SolarWinds Serv-U is susceptible to specially crafted POST requests that crash the Serv-U service without authentication using Content-Encoding: deflate. Mitigation steps are provided to secure customer environments in the SolarWinds Trust Center if you are unable to deploy the update
Scores
Affected products
- solarwinds serv-u: < 15.5.4; 15.5.4
Weakness: CWE-400
3 references (advisories, patches, write-ups)
- https://documentation.solarwinds.com/en/success_center/servu/content/release_notes/servu_15-5-4-hotfix-1_release_notes.htm · Release Notes
- https://www.solarwinds.com/trust-center/security-advisories/CVE-2026-28318 · Vendor Advisory
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-28318 · US Government Resource
Sources: NVD, CVE.org, FIRST EPSS. Missing ones did not answer or have no record yet.