CVE-2025-34026

CRITICALNVD 7.59.0▲
EchelonGraph scoreHIGH confidence

Score elevated to 9.0 because this CVE is listed on the CISA Known Exploited Vulnerabilities catalog (added 2026-01-22), indicating real-world exploitation has been confirmed by US federal agencies. NVD baseline CVSS 7.5 retained for reference. Confidence: HIGH.

Triggered by: CISA KEV (actively exploited)
Sources: cisa_kev, epss, ghsa, nvd
Trending — 4 sources updated this weekExploited in the wild
9.0EG
EchelonGraph verdictPatch nowTreat as an emergency — this is being exploited.
  • Actively exploited in the wild (CISA-KEV)
CISA-KEV: ExploitedEPSS PROB: 83%CVSS: 7.5Exploit: cisa kev · ssvc active · epss top5pct · epss high · public exploitExposed: 0

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

The Versa Concerto SD-WAN orchestration platform is vulnerable to an authentication bypass in the Traefik reverse proxy configuration, allowing at attacker to access administrative endpoints. The internal Actuator endpoint can be leveraged for access to heap dumps and trace logs.This issue is known to affect Concerto from 12.1.2 through 12.2.0. Additional versions may be vulnerable.

CVSS v3
7.5
EG Score
9.0(high)
EG Risk
96(Attend)
EG Risk 96/100SSVC: Attend

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
Severity90% × 45%
Exploitation100% × 40%
Automatability100% × 15%
Action: Remediate soon — notable exploitation risk.
EPSS PROB
83%
EPSS %ILE
100%
KEV
⚠ Exploited

Published

May 21, 2025

Last Modified

January 23, 2026

Advisory Details (3)

Auto-updated Jun 6, 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-2025-34026
generic

Versa Security Portal

https://security-portal.versa-networks.com/emailbulletins/6830f94328defa375486ff2e
generic🔴 Active Exploitation

Authentication Bypass to RCE in Versa Concerto — ProjectDiscovery Blog

https://projectdiscovery.io/blog/versa-concerto-authentication-bypass-rce

Weakness Classification(2)

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

Data Freshness Timeline

(refreshed 42× in last 7d / 220× 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.

Showing the most recent 100 of 447 total refreshes for this CVE.

  1. 2026-07-28 02:08 UTCGHSA enrichment
  2. 2026-07-27 22:25 UTCGHSA enrichment
  3. 2026-07-27 19:24 UTCCISA KEV update
  4. 2026-07-27 18:42 UTCGHSA enrichment
  5. 2026-07-27 17:17 UTCCISA KEV update
  6. 2026-07-27 14:59 UTCGHSA enrichment
  7. 2026-07-27 11:16 UTCGHSA enrichment
  8. 2026-07-27 07:34 UTCGHSA enrichment
  9. 2026-07-27 03:52 UTCGHSA enrichment
  10. 2026-07-27 00:09 UTCGHSA enrichment
  11. 2026-07-26 20:25 UTCGHSA enrichment
  12. 2026-07-26 16:42 UTCEG score recompute
  13. 2026-07-26 16:41 UTCGHSA enrichment
  14. 2026-07-26 14:54 UTCEPSS rescore
  15. 2026-07-26 12:57 UTCEG score recompute
  16. 2026-07-26 12:57 UTCGHSA enrichment
  17. 2026-07-26 09:13 UTCGHSA enrichment
  18. 2026-07-26 05:30 UTCGHSA enrichment
  19. 2026-07-26 01:47 UTCEG score recompute
  20. 2026-07-26 01:47 UTCGHSA enrichment
  21. 2026-07-24 14:17 UTCEPSS rescore
  22. 2026-07-23 02:54 UTCEG score recompute
  23. 2026-07-22 21:42 UTCEG score recompute
  24. 2026-07-22 21:41 UTCGHSA enrichment
  25. 2026-07-22 19:40 UTCCISA KEV update
Show 75 more
  1. 2026-07-22 17:57 UTCGHSA enrichment
  2. 2026-07-22 14:14 UTCEG score recompute
  3. 2026-07-22 14:13 UTCGHSA enrichment
  4. 2026-07-22 14:07 UTCEPSS rescore
  5. 2026-07-22 14:07 UTCEPSS rescore
  6. 2026-07-22 10:30 UTCGHSA enrichment
  7. 2026-07-22 06:48 UTCGHSA enrichment
  8. 2026-07-22 03:05 UTCGHSA enrichment
  9. 2026-07-21 23:21 UTCGHSA enrichment
  10. 2026-07-21 18:24 UTCEG score recompute
  11. 2026-07-21 18:24 UTCGHSA enrichment
  12. 2026-07-21 15:24 UTCEPSS rescore
  13. 2026-07-21 14:40 UTCGHSA enrichment
  14. 2026-07-21 14:37 UTCCISA KEV update
  15. 2026-07-21 10:57 UTCGHSA enrichment
  16. 2026-07-21 07:16 UTCGHSA enrichment
  17. 2026-07-21 03:32 UTCGHSA enrichment
  18. 2026-07-20 23:48 UTCGHSA enrichment
  19. 2026-07-20 20:05 UTCEG score recompute
  20. 2026-07-20 20:05 UTCGHSA enrichment
  21. 2026-07-20 17:07 UTCEPSS rescore
  22. 2026-07-20 16:22 UTCGHSA enrichment
  23. 2026-07-20 12:38 UTCGHSA enrichment
  24. 2026-07-20 08:56 UTCGHSA enrichment
  25. 2026-07-20 05:14 UTCGHSA enrichment
  26. 2026-07-20 01:31 UTCGHSA enrichment
  27. 2026-07-19 21:48 UTCGHSA enrichment
  28. 2026-07-19 18:06 UTCGHSA enrichment
  29. 2026-07-19 14:24 UTCGHSA enrichment
  30. 2026-07-19 10:42 UTCGHSA enrichment
  31. 2026-07-19 07:00 UTCGHSA enrichment
  32. 2026-07-19 03:18 UTCEG score recompute
  33. 2026-07-19 03:17 UTCGHSA enrichment
  34. 2026-07-19 02:28 UTCEPSS rescore
  35. 2026-07-19 02:28 UTCEPSS rescore
  36. 2026-07-18 23:33 UTCGHSA enrichment
  37. 2026-07-18 19:51 UTCGHSA enrichment
  38. 2026-07-18 16:08 UTCGHSA enrichment
  39. 2026-07-18 12:26 UTCGHSA enrichment
  40. 2026-07-18 08:44 UTCGHSA enrichment
  41. 2026-07-18 05:01 UTCGHSA enrichment
  42. 2026-07-18 01:19 UTCGHSA enrichment
  43. 2026-07-17 21:37 UTCGHSA enrichment
  44. 2026-07-17 17:54 UTCGHSA enrichment
  45. 2026-07-17 14:11 UTCGHSA enrichment
  46. 2026-07-17 10:27 UTCEG score recompute
  47. 2026-07-17 10:27 UTCGHSA enrichment
  48. 2026-07-17 06:45 UTCGHSA enrichment
  49. 2026-07-17 03:03 UTCGHSA enrichment
  50. 2026-07-16 23:21 UTCGHSA enrichment
  51. 2026-07-16 19:39 UTCGHSA enrichment
  52. 2026-07-16 17:04 UTCCISA KEV update
  53. 2026-07-16 15:56 UTCGHSA enrichment
  54. 2026-07-16 12:12 UTCGHSA enrichment
  55. 2026-07-16 08:29 UTCGHSA enrichment
  56. 2026-07-16 04:47 UTCGHSA enrichment
  57. 2026-07-16 01:04 UTCGHSA enrichment
  58. 2026-07-15 21:22 UTCGHSA enrichment
  59. 2026-07-15 17:40 UTCGHSA enrichment
  60. 2026-07-15 16:57 UTCEPSS rescore
  61. 2026-07-15 16:57 UTCEPSS rescore
  62. 2026-07-15 16:49 UTCCISA KEV update
  63. 2026-07-15 15:04 UTCCISA KEV update
  64. 2026-07-15 13:57 UTCGHSA enrichment
  65. 2026-07-15 10:15 UTCGHSA enrichment
  66. 2026-07-15 06:32 UTCGHSA enrichment
  67. 2026-07-15 02:50 UTCGHSA enrichment
  68. 2026-07-14 23:08 UTCGHSA enrichment
  69. 2026-07-14 19:24 UTCGHSA enrichment
  70. 2026-07-14 18:05 UTCCISA KEV update
  71. 2026-07-14 15:42 UTCGHSA enrichment
  72. 2026-07-14 11:58 UTCGHSA enrichment
  73. 2026-07-14 08:16 UTCGHSA enrichment
  74. 2026-07-14 04:33 UTCGHSA enrichment
  75. 2026-07-14 00:51 UTCGHSA enrichment

Publicly available exploits

(1 reference)

Working exploit code is in the public domain. Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.

  • Nucleihttp/cves/2025/CVE-2025-34026.yaml
    First seen Jan 1, 2025

    Versa Concerto Actuator Endpoint - Authentication Bypass

    Open source ↗

Related CVEs(same CWE)

Frequently asked(6)

What is CVE-2025-34026?
CVE-2025-34026 is a critical vulnerability published on May 21, 2025. The Versa Concerto SD-WAN orchestration platform is vulnerable to an authentication bypass in the Traefik reverse proxy configuration, allowing at attacker to access administrative endpoints. The internal Actuator endpoint can be leveraged for access to heap dumps and trace logs.This issue is known…
When was CVE-2025-34026 disclosed?
CVE-2025-34026 was first published in the National Vulnerability Database on May 21, 2025, with the most recent update on January 23, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2025-34026 actively exploited?
Yes. CISA added CVE-2025-34026 to the Known Exploited Vulnerabilities catalog on January 22, 2026, affecting Versa Concerto. KEV listing indicates confirmed exploitation in the wild; this CVE warrants immediate patching attention.
What is the CVSS score of CVE-2025-34026?
CVE-2025-34026 has a CVSS v3 base score of 7.5 (NVD). EchelonGraph synthesises NVD + CISA KEV + FIRST EPSS + GHSA into a combined EG score of 9.0.
Which products are affected by CVE-2025-34026?
CVE-2025-34026 affects Versa Concerto. 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-2025-34026?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2025-34026, 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

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