Widely used SolarWinds product; IDOR enables privilege escalation and root RCE, risking large-scale enterprise compromise.
CVE-2026-28302
IDOR in SolarWinds Serv-U enabling privilege escalation and root RCE.
Is CVE-2026-28302 being exploited?
Not confirmed. CVE-2026-28302 does not appear in CISA's Known Exploited Vulnerabilities catalog, which records only exploitation that has been observed and reported publicly. That is evidence of absence of a report, not evidence the flaw is unattacked. EPSS currently estimates a 0.72% probability of exploitation in the next 30 days.
How severe is CVE-2026-28302?
CVE-2026-28302 is rated Critical with a CVSS score of 9.1. Severity describes how bad exploitation would be, not how likely it is: pair it with exploitation evidence before deciding what to patch first.
Is there a patch for CVE-2026-28302?
Yes. A fix has been recorded for CVE-2026-28302. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-28302 affect?
CVE-2026-28302 affects SolarWinds Serv-U (Linux - high impact), SolarWinds Serv-U (Windows - reduced impact). Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-28302?
Patch immediately when available; restrict group-admin accounts; isolate and monitor affected hosts.
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
An attacker with group-administrator access can exploit an IDOR to escalate privileges and execute code as root, fully compromising servers and data.
Immediate action required
- affected15.5.4 HF1 and below
As published in the CVE Program record. A version outside these ranges is not a statement that it is unaffected — vendors sometimes understate a range, and distribution-backported builds carry upstream numbers that do not reflect what was patched into them.