Affects SolarWinds Serv-U, a widely used enterprise file-transfer product; an account-takeover bug in such software is broadly impactful and newsworthy.
CVE-2026-28314
Authenticated IDOR in SolarWinds Serv-U enabling account takeover.
Is CVE-2026-28314 being exploited?
Not confirmed. CVE-2026-28314 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 0.62% probability of exploitation in the next 30 days.
How severe is CVE-2026-28314?
CVE-2026-28314 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-2026-28314?
Yes. A fix has been recorded for CVE-2026-28314. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-28314 affect?
CVE-2026-28314 affects SolarWinds Serv-U (Serv-U Server), FTP/SFTP/FTPS deployments, Windows/Linux deployments. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-28314?
Apply vendor patch/mitigation; restrict Serv-U access, enable MFA, rotate credentials.
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Authenticated attackers can hijack Serv-U accounts to access/steal files and manage sessions; Windows installs have reduced impact.
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.