CVE-2026-28318 · netVigilance record NV26-0128
SolarWinds Serv-U Uncontrolled Resource Consumption
past due
What to do
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
CISA deadline 2026-06-19 · passed 2 months ago · applies to US federal civilian agencies; used elsewhere as a reference SLA
What happened
SolarWinds Serv-U contains an uncontrolled resource consumption vulnerability that allows specially crafted POST requests using the Content-Encoding: deflate header to crash the Serv-U service without authentication.
Who is affected
SolarWinds Serv-U. Affected version ranges are listed in the vendor advisory and the NVD entry linked under Sources.
Weakness class: CWE-400.
Timeline
- Added to CISA KEVExploitation in the wild confirmed by CISA
- CISA remediation deadlinepassed 2 months ago
Sources
- NVD entry for CVE-2026-28318 nvd.nist.gov/vuln/detail/CVE-2026-28318
- CISA Known Exploited Vulnerabilities catalog www.cisa.gov/known-exploited-vulnerabilities-catalog
- solarwinds.com www.solarwinds.com/trust-center/security-advisories/cve-2026-28318
- documentation.solarwinds.com documentation.solarwinds.com/en/success_center/servu/content/release_notes/servu_15-5-4-hotfix-1_release_notes.htm#link7
- nvd.nist.gov nvd.nist.gov/vuln/detail/CVE-2026-28318