CVE-2026-8480

MEDIUMPre-NVD 4.34.3
EchelonGraph scoreMEDIUM confidence

Score 4.3 from GitHub Security Advisory published 2026-07-01. a secondary CVSS source baseline 4.3; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this week
4.3EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 4.3Exploit: None knownExposed: 0

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

A vulnerability was discovered on Stormshield Network Security 4.3.0  to 4.3.41 (included), 4.4.0 to 4.8.15 (included) , 5.0.2 EA to 5.0.5 (included)

A revoked client certificate can still be used to authenticate to the captive‑admin portal, allowing an attacker who possesses the revoked certificate to gain administrative access.

CVSS v3
4.3
EG Score
4.3(medium)
EG Risk
24(Track)
EG Risk 24/100SSVC: 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
Severity43% × 45%
Exploitation0% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
3%
KEV
Not listed

Published

July 1, 2026

Last Modified

July 1, 2026

Advisory Details (1)

Auto-updated Jul 3, 2026
🔬 Proof of concept available. No patch confirmed yet.
generic🟡 PoC Available

Connection possible to the administration portal with revoked certificate | Stormshield security

https://advisories.stormshield.eu/2026-002/

Vendor Advisories for CVE-2026-8480(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 8× in last 7d / 39× 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 137 total refreshes for this CVE.

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

Frequently asked(5)

What is CVE-2026-8480?
CVE-2026-8480 is a medium vulnerability published on July 1, 2026. A vulnerability was discovered on Stormshield Network Security 4.3.0 to 4.3.41 (included), 4.4.0 to 4.8.15 (included) , 5.0.2 EA to 5.0.5 (included) A revoked client certificate can still be used to authenticate to the captive‑admin portal, allowing an attacker who possesses the revoked certificate…
When was CVE-2026-8480 disclosed?
CVE-2026-8480 was first published in the National Vulnerability Database on July 1, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-8480 actively exploited?
CVE-2026-8480 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 97.4% of all scored CVEs.
What is the CVSS score of CVE-2026-8480?
CVE-2026-8480 has a CVSS v3 base score of 4.3 (NVD).
How do I remediate CVE-2026-8480?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-8480, 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-2026-8480

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