Affects SolarWinds Web Help Desk—a widely used enterprise ITSM product; auth bypass allows full account compromise and potential org-wide impact.
CVE-2026-28323
SAML auth bypass in SolarWinds Web Help Desk enabling unauthorized logins.
Is CVE-2026-28323 being exploited?
Not confirmed. CVE-2026-28323 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 0.68% probability of exploitation in the next 30 days.
How severe is CVE-2026-28323?
CVE-2026-28323 is rated Critical with a CVSS score of 9.8. 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-2026-28323?
Yes. A fix has been recorded for CVE-2026-28323. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-28323 affect?
CVE-2026-28323 affects SolarWinds Web Help Desk (SAML 2.0 enabled). Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-28323?
Disable SAML 2.0, isolate WHD, monitor logs, apply vendor patch when released.
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
SAML 2.0 authentication bypass lets attackers authenticate as arbitrary users (including admins), enabling unauthorized access, data theft, and lateral movement.
Immediate action required
- affected2026.1 and all previous versions
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.