CVE-2026-28325

HIGHPre-NVD 8.88.8—
EchelonGraph scoreHIGH confidence

Score 8.8 from GitHub Security Advisory (severity: HIGH) published 2026-09-22. a secondary CVSS source baseline 8.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this week
8.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 2%CVSS: 8.8Exploit: None knownExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

SolarWinds Observability Self-Hosted was found to be affected by an unauthenticated remote code execution vulnerability stemming from deserialization of untrusted data when the application is configured to use a specific communication mode.

CVSS v3
8.8
EG Score
8.8(high)
EG Risk
40(Track)
EG Risk 40/100SSVC: Track

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity88% × 45%
Exploitation2% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
2%
EPSS %ILE
73%
KEV
Not listed

Published

September 22, 2026

Last Modified

September 23, 2026

Advisory Details (2)

Auto-updated Sep 22, 2026
No patch confirmed yet.
generic

Secure Configuration for the SolarWinds Platform

https://documentation.solarwinds.com/en/success_center/orionplatform/content/core-secure-configuration.htm
generic

SolarWinds Observability Self-Hosted 2026.2.3 release notes

https://documentation.solarwinds.com/en/success_center/orionplatform/content/release_notes/hco_2026-2-3_release_notes.htm

Vendor Advisories for CVE-2026-28325(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 11× in last 7d / 11× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

  1. 2026-09-24 02:54 UTCGHSA enrichment
  2. 2026-09-23 15:47 UTCEG score recompute
  3. 2026-09-23 15:47 UTCGHSA enrichment
  4. 2026-09-23 04:41 UTCEG score recompute
  5. 2026-09-23 04:41 UTCGHSA enrichment
  6. 2026-09-23 04:03 UTCEG score recompute
  7. 2026-09-23 04:03 UTCGHSA enrichment
  8. 2026-09-22 20:32 UTCEG score recompute
  9. 2026-09-22 19:38 UTCEG score recompute
  10. 2026-09-22 19:23 UTCEG score recompute
  11. 2026-09-22 19:23 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-28325?
CVE-2026-28325 is a high vulnerability published on September 22, 2026. SolarWinds Observability Self-Hosted was found to be affected by an unauthenticated remote code execution vulnerability stemming from deserialization of untrusted data when the application is configured to use a specific communication mode.
When was CVE-2026-28325 disclosed?
CVE-2026-28325 was first published in the National Vulnerability Database on September 22, 2026, with the most recent update on September 23, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-28325 actively exploited?
CVE-2026-28325 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 2% probability of exploitation in the next 30 days, which ranks it in the top 26.5% of all scored CVEs.
What is the CVSS score of CVE-2026-28325?
CVE-2026-28325 has a CVSS v3 base score of 8.8 (NVD).
How do I remediate CVE-2026-28325?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-28325, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

Explore the affected products and dependency analysis for CVE-2026-28325

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