CVE-2026-71407

MEDIUMPre-NVD 5.65.6—
EchelonGraph scoreHIGH confidence

Score 5.6 from GitHub Security Advisory published 2026-08-12. a secondary CVSS source baseline 5.6; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this week
5.6EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 5.6Exploit: None knownExposed: 0

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

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
5.6
EG Score
5.6(high)
EG Risk
25(Track)
EG Risk 25/100SSVC: 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
Severity56% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
40%
KEV
Not listed

Published

August 12, 2026

Last Modified

August 13, 2026

Advisory Details (1)

Auto-updated Aug 12, 2026
No patch confirmed 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 22× in last 7d / 37× 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. 2026-08-20 22:56 UTCEPSS rescore
  2. 2026-08-20 21:50 UTCGHSA enrichment
  3. 2026-08-19 19:36 UTCEG score recompute
  4. 2026-08-19 19:36 UTCGHSA enrichment
  5. 2026-08-19 17:04 UTCEPSS rescore
  6. 2026-08-18 17:22 UTCEG score recompute
  7. 2026-08-18 17:22 UTCGHSA enrichment
  8. 2026-08-18 13:49 UTCEPSS rescore
  9. 2026-08-18 13:49 UTCEPSS rescore
  10. 2026-08-17 14:17 UTCEG score recompute
  11. 2026-08-17 14:17 UTCGHSA enrichment
  12. 2026-08-17 13:47 UTCEPSS rescore
  13. 2026-08-16 14:56 UTCEPSS rescore
  14. 2026-08-16 14:56 UTCEPSS rescore
  15. 2026-08-16 12:03 UTCEG score recompute
  16. 2026-08-16 12:03 UTCGHSA enrichment
  17. 2026-08-16 02:15 UTCEPSS rescore
  18. 2026-08-15 09:49 UTCEG score recompute
  19. 2026-08-15 09:49 UTCGHSA enrichment
  20. 2026-08-15 01:31 UTCEPSS rescore
  21. 2026-08-14 07:34 UTCEG score recompute
  22. 2026-08-14 07:34 UTCGHSA enrichment
  23. 2026-08-13 22:00 UTCEPSS rescore
  24. 2026-08-13 05:19 UTCEG score recompute
  25. 2026-08-13 05:19 UTCGHSA enrichment
Show 12 more
  1. 2026-08-13 05:17 UTCNVD updateCVSS v3 → 5.6
  2. 2026-08-13 04:21 UTCEG score recompute
  3. 2026-08-13 04:21 UTCGHSA enrichment
  4. 2026-08-13 04:20 UTCMITRE cvelistV5CVSS v3 → 5.1
  5. 2026-08-12 15:26 UTCEG score recompute▲ 0.50
  6. 2026-08-12 15:25 UTCNVD updateCVSS v3 → 5.6
  7. 2026-08-12 14:29 UTCEG score recompute▼ 0.50
  8. 2026-08-12 14:28 UTCMITRE cvelistV5CVSS v3 → 5.1
  9. 2026-08-12 13:37 UTCEG score recompute▲ 0.50
  10. 2026-08-12 13:36 UTCNVD updateCVSS v3 → 5.6
  11. 2026-08-12 12:35 UTCEG score recompute
  12. 2026-08-12 12:34 UTCMITRE cvelistV5first tracked

Frequently asked(5)

What is CVE-2026-71407?
CVE-2026-71407 is a medium 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 CVE-2026-71407 disclosed?
CVE-2026-71407 was first published in the National Vulnerability Database on August 12, 2026, with the most recent update on August 13, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-71407 actively exploited?
CVE-2026-71407 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 59.5% of all scored CVEs.
What is the CVSS score of CVE-2026-71407?
CVE-2026-71407 has a CVSS v3 base score of 5.6 (NVD).
How do I remediate CVE-2026-71407?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-71407, 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-2026-71407

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