CVE-2026-71407

HIGHNVD 8.18.1—
EchelonGraph scoreMEDIUM confidence

This high-severity CVE scores 8.1 under NVD CVSS v3. EPSS exploit probability: 0.4% (34th percentile of EPSS-scored CVEs). GitHub Security Advisory enrichment pending alignment with NVD CVSS.

Triggered by: NVD CVSS baseline
Sources: epss, ghsa, nvd
Trending — 3 sources updated this week
8.1EG
EchelonGraph verdictPlan mitigationRemediate within your standard update timelines (the SSVC decision on this page).
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.4%CVSS: 8.1Exploit: None knownExposed services: Not assessed

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

A Stack-based Buffer Overflow vulnerability [CWE-121] vulnerability in Fortinet FortiOS 7.6.1 through 7.6.6 may allow an unauthenticated attacker who can bypass stack protection and ASLR to execute arbitrary code or commands in the context of the WAD daemon via crafted sockets, only if the explicit proxy is configured with Kerberos authentication and SOCKS enabled.

CVSS v3
8.1
EG Score
8.1HIGHmedium confidence
EG Risk
37
EG Risk 37/100

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 (value × EchelonGraph’s weight)
Severity81% × 45%
The EG Score, 8.1 of 10.
Exploitation0% × 40%
FIRST EPSS: the 30-day exploitation probability when EchelonGraph scored this CVE.
Automatability0% × 15%
CISA's SSVC Automatable value: no (Vulnrichment).
SSVC (CISA's decision table, applied by EchelonGraph): Track at low or medium mission impact; Track* at high (mission-essential systems).
Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE.
Action: No fix is confirmed yet. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines, and watch the vendor's advisory for the fix.
EPSS PROB
0.4%
EPSS %ILE
34th
KEV
Not listed

SSVC (CISA's decision table, applied by EchelonGraph)Track at low or medium mission impact; Track* at high (mission-essential systems).

No fix is confirmed yet. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines, and watch the vendor's advisory for the fix.

Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE. Mission impact is CISA's Mission & Well-being decision point, and only you can judge it. CISA's table makes it high when Mission Prevalence is Essential — the vulnerable component "directly provides capabilities that constitute at least one MEF for at least one entity" (MEF: mission essential function) — or when Public Well-Being Impact is Irreversible: "multiple fatalities are likely", the cyber-physical system "is likely lost or destroyed", "extreme or serious externalities" are imposed on other parties, or social systems such as elections or the financial grid "are destabilized and potentially collapse". CISA's decision table

Published

August 12, 2026

Last Modified

September 8, 2026

Advisory Details (1)

Auto-updated Aug 12, 2026
No fix on record yet.
generic

PSIRT | FortiGuard Labs

https://fortiguard.fortinet.com/psirt/FG-IR-26-161

Vendor Advisories for CVE-2026-71407(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 13× in last 7d / 84× in last 30d)

Each row is a time one of our pipelines fetched, updated or re-scored this CVE. 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. An arrow marks a change the record states ("CVSS v3 → 9.1"); EPSS and GHSA rows show the values recorded at that time, not what changed (EPSS values are rounded; hover one for the exact figures). Most recent first.

Showing the most recent 100 of 175 refreshes on record for this CVE.

A repeat, a row identical to one the same pipeline wrote less than 10 seconds earlier, is not a separate refresh and is not counted. None are among the latest 100 rows. The 75 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-10-10 20:00 UTCEPSS rescoreEPSS 0.4% · 34th percentile
  2. 2026-10-09 20:07 UTCEPSS rescoreEPSS 0.4% · 34th percentile
  3. 2026-10-08 17:13 UTCEPSS rescoreEPSS 0.4% · 34th percentile
  4. 2026-10-07 23:48 UTCEPSS rescoreEPSS 0.4% · 34th percentile
  5. 2026-10-07 07:49 UTCGHSA enrichmentGHSA-32v4-7g7v-4c6p · GitHub CVSS 5.6
  6. 2026-10-06 17:30 UTCEG score recompute
  7. 2026-10-06 17:30 UTCGHSA enrichmentGHSA-32v4-7g7v-4c6p · GitHub CVSS 5.6
  8. 2026-10-06 15:18 UTCEPSS rescoreEPSS 0.4% · 34th percentile
  9. 2026-10-05 17:43 UTCEPSS rescoreEPSS 0.4% · 34th percentile
  10. 2026-10-05 14:49 UTCEG score recompute
  11. 2026-10-05 14:49 UTCGHSA enrichmentGHSA-32v4-7g7v-4c6p · GitHub CVSS 5.6
  12. 2026-10-04 23:22 UTCEPSS rescoreEPSS 0.4% · 34th percentile
  13. 2026-10-04 22:35 UTCGHSA enrichmentGHSA-32v4-7g7v-4c6p · GitHub CVSS 5.6
  14. 2026-10-04 09:25 UTCGHSA enrichmentGHSA-32v4-7g7v-4c6p · GitHub CVSS 5.6
  15. 2026-10-03 20:15 UTCEG score recompute
  16. 2026-10-03 20:15 UTCGHSA enrichmentGHSA-32v4-7g7v-4c6p · GitHub CVSS 5.6
  17. 2026-10-03 14:26 UTCEPSS rescoreEPSS 0.4% · 34th percentile
  18. 2026-10-02 22:02 UTCEG score recompute
  19. 2026-10-02 22:02 UTCGHSA enrichmentGHSA-32v4-7g7v-4c6p · GitHub CVSS 5.6
  20. 2026-10-02 17:56 UTCEPSS rescoreEPSS 0.4% · 34th percentile
  21. 2026-10-02 08:23 UTCEG score recompute
  22. 2026-10-02 08:23 UTCGHSA enrichmentGHSA-32v4-7g7v-4c6p · GitHub CVSS 5.6
  23. 2026-10-01 19:50 UTCEPSS rescoreEPSS 0.4% · 34th percentile
  24. 2026-10-01 11:11 UTCGHSA enrichmentGHSA-32v4-7g7v-4c6p · GitHub CVSS 5.6
  25. 2026-09-30 21:58 UTCEG score recompute
Show 75 more
  1. 2026-09-30 21:58 UTCGHSA enrichmentGHSA-32v4-7g7v-4c6p · GitHub CVSS 5.6
  2. 2026-09-30 15:03 UTCEPSS rescoreEPSS 0.4% · 34th percentile
  3. 2026-09-29 04:52 UTCEG score recompute
  4. 2026-09-29 04:52 UTCGHSA enrichmentGHSA-32v4-7g7v-4c6p · GitHub CVSS 5.6
  5. 2026-09-28 14:48 UTCEG score recompute
  6. 2026-09-28 14:48 UTCGHSA enrichmentGHSA-32v4-7g7v-4c6p · GitHub CVSS 5.6
  7. 2026-09-28 13:52 UTCEPSS rescoreEPSS 0.4% · 33rd percentile
  8. 2026-09-28 01:34 UTCEG score recompute
  9. 2026-09-28 01:34 UTCGHSA enrichmentGHSA-32v4-7g7v-4c6p · GitHub CVSS 5.6
  10. 2026-09-27 13:48 UTCEPSS rescoreEPSS 0.4% · 33rd percentile
  11. 2026-09-27 09:57 UTCEG score recompute
  12. 2026-09-27 09:57 UTCGHSA enrichmentGHSA-32v4-7g7v-4c6p · GitHub CVSS 5.6
  13. 2026-09-26 15:59 UTCEPSS rescoreEPSS 0.4% · 33rd percentile
  14. 2026-09-25 03:43 UTCEG score recompute
  15. 2026-09-25 03:43 UTCGHSA enrichmentGHSA-32v4-7g7v-4c6p · GitHub CVSS 5.6
  16. 2026-09-24 12:44 UTCGHSA enrichmentGHSA-32v4-7g7v-4c6p · GitHub CVSS 5.6
  17. 2026-09-23 23:33 UTCEG score recompute
  18. 2026-09-23 23:33 UTCGHSA enrichmentGHSA-32v4-7g7v-4c6p · GitHub CVSS 5.6
  19. 2026-09-23 17:54 UTCEPSS rescoreEPSS 0.5% · 44th percentile
  20. 2026-09-23 10:18 UTCGHSA enrichmentGHSA-32v4-7g7v-4c6p · GitHub CVSS 5.6
  21. 2026-09-22 21:07 UTCEG score recompute
  22. 2026-09-22 21:07 UTCGHSA enrichmentGHSA-32v4-7g7v-4c6p · GitHub CVSS 5.6
  23. 2026-09-22 03:28 UTCEG score recompute
  24. 2026-09-22 03:27 UTCGHSA enrichmentGHSA-32v4-7g7v-4c6p · GitHub CVSS 5.6
  25. 2026-09-21 21:09 UTCEPSS rescoreEPSS 0.5% · 44th percentile
  26. 2026-09-21 14:17 UTCGHSA enrichmentGHSA-32v4-7g7v-4c6p · GitHub CVSS 5.6
  27. 2026-09-21 00:17 UTCEG score recompute
  28. 2026-09-21 00:17 UTCGHSA enrichmentGHSA-32v4-7g7v-4c6p · GitHub CVSS 5.6
  29. 2026-09-20 20:16 UTCEPSS rescoreEPSS 0.5% · 44th percentile
  30. 2026-09-20 10:16 UTCGHSA enrichmentGHSA-32v4-7g7v-4c6p · GitHub CVSS 5.6
  31. 2026-09-19 19:46 UTCEG score recompute
  32. 2026-09-19 19:46 UTCGHSA enrichmentGHSA-32v4-7g7v-4c6p · GitHub CVSS 5.6
  33. 2026-09-19 06:15 UTCEG score recompute
  34. 2026-09-19 06:15 UTCGHSA enrichmentGHSA-32v4-7g7v-4c6p · GitHub CVSS 5.6
  35. 2026-09-18 19:28 UTCEPSS rescoreEPSS 0.5% · 44th percentile
  36. 2026-09-18 16:59 UTCGHSA enrichmentGHSA-32v4-7g7v-4c6p · GitHub CVSS 5.6
  37. 2026-09-18 02:57 UTCEG score recompute
  38. 2026-09-18 02:57 UTCGHSA enrichmentGHSA-32v4-7g7v-4c6p · GitHub CVSS 5.6
  39. 2026-09-17 13:46 UTCGHSA enrichmentGHSA-32v4-7g7v-4c6p · GitHub CVSS 5.6
  40. 2026-09-17 00:23 UTCEG score recompute
  41. 2026-09-17 00:23 UTCGHSA enrichmentGHSA-32v4-7g7v-4c6p · GitHub CVSS 5.6
  42. 2026-09-16 14:08 UTCEPSS rescoreEPSS 0.5% · 44th percentile
  43. 2026-09-16 05:15 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  44. 2026-09-16 03:08 UTCGHSA enrichmentGHSA-32v4-7g7v-4c6p · GitHub CVSS 5.6
  45. 2026-09-15 13:57 UTCEG score recompute
  46. 2026-09-15 13:57 UTCGHSA enrichmentGHSA-32v4-7g7v-4c6p · GitHub CVSS 5.6
  47. 2026-09-15 03:12 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  48. 2026-09-15 00:45 UTCGHSA enrichmentGHSA-32v4-7g7v-4c6p · GitHub CVSS 5.6
  49. 2026-09-14 11:35 UTCGHSA enrichmentGHSA-32v4-7g7v-4c6p · GitHub CVSS 5.6
  50. 2026-09-13 22:24 UTCEG score recompute
  51. 2026-09-13 22:24 UTCGHSA enrichmentGHSA-32v4-7g7v-4c6p · GitHub CVSS 5.6
  52. 2026-09-13 09:14 UTCGHSA enrichmentGHSA-32v4-7g7v-4c6p · GitHub CVSS 5.6
  53. 2026-09-12 20:04 UTCEG score recompute
  54. 2026-09-12 20:04 UTCGHSA enrichmentGHSA-32v4-7g7v-4c6p · GitHub CVSS 5.6
  55. 2026-09-12 15:02 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  56. 2026-09-12 06:53 UTCGHSA enrichmentGHSA-32v4-7g7v-4c6p · GitHub CVSS 5.6
  57. 2026-09-11 17:43 UTCEG score recompute
  58. 2026-09-11 17:43 UTCGHSA enrichmentGHSA-32v4-7g7v-4c6p · GitHub CVSS 5.6
  59. 2026-09-11 14:53 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  60. 2026-09-11 04:15 UTCGHSA enrichmentGHSA-32v4-7g7v-4c6p · GitHub CVSS 5.6
  61. 2026-09-10 15:04 UTCEG score recompute
  62. 2026-09-10 15:04 UTCGHSA enrichmentGHSA-32v4-7g7v-4c6p · GitHub CVSS 5.6
  63. 2026-09-10 09:35 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  64. 2026-09-10 01:54 UTCGHSA enrichmentGHSA-32v4-7g7v-4c6p · GitHub CVSS 5.6
  65. 2026-09-09 10:37 UTCEG score recompute
  66. 2026-09-09 10:37 UTCGHSA enrichmentGHSA-32v4-7g7v-4c6p · GitHub CVSS 5.6
  67. 2026-09-08 22:01 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  68. 2026-09-08 21:18 UTCEG score recompute▲ 2.50
  69. 2026-09-08 21:18 UTCGHSA enrichmentGHSA-32v4-7g7v-4c6p · GitHub CVSS 5.6
  70. 2026-09-08 21:11 UTCNVD updateCVSS v3 → 8.1 · severity → HIGH
  71. 2026-09-07 16:45 UTCEG score recompute
  72. 2026-09-07 16:45 UTCGHSA enrichmentGHSA-32v4-7g7v-4c6p · GitHub CVSS 5.6
  73. 2026-09-06 13:48 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  74. 2026-09-06 12:27 UTCEG score recompute
  75. 2026-09-06 12:27 UTCGHSA enrichmentGHSA-32v4-7g7v-4c6p · GitHub CVSS 5.6

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-71407?
CVE-2026-71407 is a high vulnerability published on August 12, 2026. A Stack-based Buffer Overflow vulnerability [CWE-121] vulnerability in Fortinet FortiOS 7.6.1 through 7.6.6 may allow an unauthenticated attacker who can bypass stack protection and ASLR to execute arbitrary code or commands in the context of the WAD daemon via crafted sockets, only if the explicit…
When was the CVE record for CVE-2026-71407 published?
The CVE record for CVE-2026-71407 was published on August 12, 2026. That is the record's publication date; the vulnerability itself may have been made public earlier. EchelonGraph's copy of the record carries a last-modified date of September 8, 2026; the record at its source may have been updated since.
Is CVE-2026-71407 actively exploited?
CVE-2026-71407 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.4% probability of exploitation in the next 30 days (34th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-71407?
CVE-2026-71407 has a CVSS v3 base score of 8.1 (NVD).
How do I remediate CVE-2026-71407?
No fix for CVE-2026-71407 is confirmed yet. Until one is published, restrict network exposure of the affected system or apply the vendor's mitigation — for example, keep it off the internet or limit it to trusted networks — and watch the vendor's advisory for the fix. The vendor advisories EchelonGraph has for CVE-2026-71407 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

Explore the affected products and dependency analysis for CVE-2026-71407

Explore →

Is Your Infrastructure Affected by CVE-2026-71407?

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

Book a Demo →Browse All CVEs