CVE-2026-16812

CRITICALPre-NVD 10.010.0—
EchelonGraph scoreHIGH confidence

Score elevated to 10.0 because this CVE is listed on the CISA Known Exploited Vulnerabilities catalog (added 2026-07-27), indicating real-world exploitation has been confirmed by US federal agencies. a secondary CVSS source baseline 10.0 retained for reference (NVD's own analysis pending). Confidence: HIGH.

Triggered by: CISA KEV (actively exploited)
Sources: cisa_kev, epss, ghsa, secondary
Trending — KEV-added this weekExploited in the wild
10.0EG
EchelonGraph verdictPatch nowTreat as an emergency — this is being exploited.
  • Actively exploited in the wild (CISA-KEV)
CISA-KEV: ExploitedEPSS PROB: 1%CVSS: 10.0Exploit: cisa kev · ssvc activeExposed: 0

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

VeloCloud Orchestrator (VCO) on-prem has a security issue where this issue may allow a remote attacker to access privileged internal functionality and impact the VCO host. Successful exploitation may compromise the confidentiality, integrity, and availability of the orchestrator and data managed by the orchestrator.

This functionality was intended to be for internal use only and is not intended to be remotely accessible.

Hosted and Dedicated versions of VCO have already been patched in advance of this notice going out.

This issue was discovered externally and is known to be actively exploited.

CVSS v3
10.0
EG Score
10.0(high)
EG Risk
100(Act)
EG Risk 100/100SSVC: Act

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
Severity100% × 45%
Exploitation100% × 40%
Automatability100% × 15%
Action: Fix now — active exploitation, automatable, high impact.
EPSS PROB
1%
EPSS %ILE
59%
KEV
⚠ Exploited

Published

July 27, 2026

Last Modified

July 28, 2026

Advisory Details (2)

Auto-updated Jul 28, 2026
⚠️ Active exploitation confirmed. Patch available. Sources: cisa.
cisa Patch Available🔴 Active Exploitation

Known Exploited Vulnerabilities Catalog | CISA

Known Exploited Vulnerabilities Catalog | CISA. Listed in CISA Known Exploited Vulnerabilities catalog.

https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-16812
generic🔴 Active Exploitation

Security Advisory 0144 - Arista

https://www.arista.com/en/support/advisories-notices/security-advisory/24364-security-advisory-0144

Vendor Advisories for CVE-2026-16812(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 23× in last 7d / 23× 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. 2026-07-29 08:14 UTCGHSA enrichment
  2. 2026-07-29 03:53 UTCGHSA enrichment
  3. 2026-07-28 23:35 UTCGHSA enrichment
  4. 2026-07-28 19:16 UTCEG score recompute
  5. 2026-07-28 19:16 UTCGHSA enrichment
  6. 2026-07-28 14:57 UTCGHSA enrichment
  7. 2026-07-28 12:24 UTCGHSA enrichment
  8. 2026-07-28 09:56 UTCGHSA enrichment
  9. 2026-07-28 05:36 UTCEG score recompute
  10. 2026-07-28 05:36 UTCGHSA enrichment
  11. 2026-07-28 04:35 UTCEG score recompute
  12. 2026-07-28 04:34 UTCGHSA enrichment
  13. 2026-07-28 00:36 UTCGHSA enrichment
  14. 2026-07-27 20:18 UTCEG score recompute
  15. 2026-07-27 20:18 UTCGHSA enrichment
  16. 2026-07-27 19:56 UTCEG score recompute
  17. 2026-07-27 19:55 UTCGHSA enrichment
  18. 2026-07-27 19:24 UTCCISA KEV update
  19. 2026-07-27 17:19 UTCEG score recompute
  20. 2026-07-27 17:00 UTCEG score recompute
  21. 2026-07-27 16:24 UTCEG score recompute
  22. 2026-07-27 16:16 UTCEG score recompute
  23. 2026-07-27 16:16 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(6)

What is CVE-2026-16812?
CVE-2026-16812 is a critical vulnerability published on July 27, 2026. VeloCloud Orchestrator (VCO) on-prem has a security issue where this issue may allow a remote attacker to access privileged internal functionality and impact the VCO host. Successful exploitation may compromise the confidentiality, integrity, and availability of the orchestrator and data managed by…
When was CVE-2026-16812 disclosed?
CVE-2026-16812 was first published in the National Vulnerability Database on July 27, 2026, with the most recent update on July 28, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-16812 actively exploited?
Yes. CISA added CVE-2026-16812 to the Known Exploited Vulnerabilities catalog on July 27, 2026, affecting Arista VeloCloud Orchestrator. KEV listing indicates confirmed exploitation in the wild; this CVE warrants immediate patching attention.
What is the CVSS score of CVE-2026-16812?
CVE-2026-16812 has a CVSS v3 base score of 10.0 (NVD).
Which products are affected by CVE-2026-16812?
CVE-2026-16812 affects Arista VeloCloud Orchestrator. The full affected-products list, including version ranges and fixed versions, is shown in the Affected Packages section of this page.
How do I remediate CVE-2026-16812?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-16812, 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-2026-16812

Explore →

Is Your Infrastructure Affected by CVE-2026-16812?

EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.

Start Free Scan →Browse All CVEs