Critical 9.1Published Jul 21, 2026

CVE-2026-28308SolarWinds Serv-U Insecure Direct Object Reference (IDOR) Vulnerability

Updated under an hour ago (Oct 26, 2026, 11:10 PM ET)

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It affects SolarWinds Serv-U and 1 other product. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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Every CVE for SolarWinds Serv-U

Exploited in the last 30 days

SolarWinds Serv-U is affected by an insecure direct object reference (IDOR) vulnerability that can lead to remote code execution. Domain administrator access is required. The impact is lower in Windows deployments.

CVSS: 9.1 CRITICAL (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
Weakness (CWE): CWE-639
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: SolarWinds
NVD analysis: Analyzed
Record last updated: Jul 23, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

SolarWinds Serv-U solarwinds:serv_u (from the name)	15.5.4 HF1 and below	CNA record
solarwinds serv-u solarwinds:serv-u	before 2026.3	NVD

References

References

https://www.solarwinds.com/trust-center/security-advisories/CVE-2026-28308	vendor-advisory
https://documentation.solarwinds.com/en/success_center/servu/content/release_notes/servu_2026-3_release_notes.htm	release-notes, vendor-advisory

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.