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SolarWinds security incident history

Updated Oct 26, 2026. Data gathered daily from official public sources.

As of Oct 26, 2026, Vendor History found 11 actively exploited security flaws for SolarWinds, dated Nov 3, 2021 to Jun 5, 2026. Sources checked: the California and Washington Attorney General breach lists and CISA's Known Exploited Vulnerabilities catalog.

Breach notices and SEC cyber filings

None found in the sources we check.

Got a breach letter from SolarWinds? What to do when a vendor has a data breach.

Actively exploited security flaws

Flaws in SolarWinds products that CISA lists as exploited by attackers. If you use an affected product, check that it's updated. What a listing means.

1. Jun 5, 2026Exploited flaw

   SolarWinds Serv-U Uncontrolled Resource Consumption Vulnerability (CVE-2026-28318). Added to CISA's list of security flaws known to be exploited by attackers.

   Source: CISA Known Exploited Vulnerabilities catalog

2. Mar 9, 2026Exploited flaw

   SolarWinds Web Help Desk Deserialization of Untrusted Data Vulnerability (CVE-2025-26399). Added to CISA's list of security flaws known to be exploited by attackers. CISA lists it as used in ransomware campaigns.

   Source: CISA Known Exploited Vulnerabilities catalog

3. Feb 12, 2026Exploited flaw

   SolarWinds Web Help Desk Security Control Bypass Vulnerability (CVE-2025-40536). Added to CISA's list of security flaws known to be exploited by attackers.

   Source: CISA Known Exploited Vulnerabilities catalog

4. Feb 3, 2026Exploited flaw

   SolarWinds Web Help Desk Deserialization of Untrusted Data Vulnerability (CVE-2025-40551). Added to CISA's list of security flaws known to be exploited by attackers.

   Source: CISA Known Exploited Vulnerabilities catalog

5. Oct 15, 2024Exploited flaw

   SolarWinds Web Help Desk Hardcoded Credential Vulnerability (CVE-2024-28987). Added to CISA's list of security flaws known to be exploited by attackers.

   Source: CISA Known Exploited Vulnerabilities catalog

6. Aug 15, 2024Exploited flaw

   SolarWinds Web Help Desk Deserialization of Untrusted Data Vulnerability (CVE-2024-28986). Added to CISA's list of security flaws known to be exploited by attackers.

   Source: CISA Known Exploited Vulnerabilities catalog

7. Jul 17, 2024Exploited flaw

   SolarWinds Serv-U Path Traversal Vulnerability (CVE-2024-28995). Added to CISA's list of security flaws known to be exploited by attackers.

   Source: CISA Known Exploited Vulnerabilities catalog

8. Jan 21, 2022Exploited flaw

   SolarWinds Serv-U Improper Input Validation Vulnerability (CVE-2021-35247). Added to CISA's list of security flaws known to be exploited by attackers.

   Source: CISA Known Exploited Vulnerabilities catalog

9. Nov 3, 2021Exploited flaw

   SolarWinds Virtualization Manager Privilege Escalation Vulnerability (CVE-2016-3643). Added to CISA's list of security flaws known to be exploited by attackers.

   Source: CISA Known Exploited Vulnerabilities catalog

10. Nov 3, 2021Exploited flaw

    SolarWinds Orion Authentication Bypass Vulnerability (CVE-2020-10148). Added to CISA's list of security flaws known to be exploited by attackers.

    Source: CISA Known Exploited Vulnerabilities catalog

11. Nov 3, 2021Exploited flaw

    SolarWinds Serv-U Remote Code Execution Vulnerability (CVE-2021-35211). Added to CISA's list of security flaws known to be exploited by attackers. CISA lists it as used in ransomware campaigns.

    Source: CISA Known Exploited Vulnerabilities catalog

We check: California and Washington Attorney General breach notices, SEC cyber incident filings (Form 8-K, Item 1.05) and CISA's catalog of actively exploited security flaws. An empty section means we found nothing in those sources. It does not mean nothing happened. How it works

To cite: Vendor History, "SolarWinds security incident history," vendorhistory.com/vendor/solarwinds, data checked Oct 26, 2026. Free to reuse under CC BY 4.0 with credit to Vendor History.