SolarWinds Serv-U
YES - ON THE CISA KEV LIST
CVE-2026-28318
SolarWinds Serv-U Uncontrolled Resource Consumption Vulnerability
145 days past due
SolarWinds: 11 entries (0.6% of all KEV entries are from this vendor); 4 added in 2026.
BOD 26-04 note: this is the date printed in the CISA catalog. A federal agency's actual deadline is set by its SSVC tier - Act (3 days), Attend (14 days), Track (60 days), or the next scheduled upgrade - counted from the KEV listing date or the date the vulnerability is identified in its environment, whichever comes first. Use the tier helper on each CVE page for your own window.
Your BOD 26-04 window (SSVC tier helper)
Your remediation window ends:
Description
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.
Required action (CISA)
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
Notes
https://www.solarwinds.com/trust-center/security-advisories/cve-2026-28318 ; https://documentation.solarwinds.com/en/success_center/servu/content/release_notes/servu_15-5-4-hotfix-1_release_notes.htm#link7 ; https://nvd.nist.gov/vuln/detail/CVE-2026-28318
References
Other KEV entries for this vendor: SolarWinds
- CVE-2025-26399 - Web Help Desk (2026-03-09)
- CVE-2025-40536 - Web Help Desk (2026-02-12)
- CVE-2025-40551 - Web Help Desk (2026-02-03)
- CVE-2024-28987 - Web Help Desk (2024-10-15)
- CVE-2024-28986 - Web Help Desk (2024-08-15)
- CVE-2024-28995 - Serv-U (2024-07-17)
- CVE-2021-35247 - Serv-U (2022-01-21)
- CVE-2020-10148 - Orion (2021-11-03)
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