CVE-2026-14818

HIGHPre-NVD 7.27.2—
EchelonGraph scoreHIGH confidence

Score 7.2 from GitHub Security Advisory (severity: HIGH) published 2026-08-04. a secondary CVSS source baseline 7.2; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this week
7.2EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 7.2Exploit: None knownExposed: 0

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

A path traversal vulnerability in the CLI command used to execute configuration files in Zyxel ATP series firmware versions from V4.32 through V5.42 Patch 1, USG FLEX series firmware versions from V4.50 through V5.42 Patch 1, USG FLEX 50(W) series firmware versions from V4.16 through V5.42 Patch 1, and USG20(W)-VPN series firmware versions from V4.16 through V5.42 Patch 1 could allow an authenticated attacker with administrator privileges to execute a crafted malicious configuration file on an affected device.

CVSS v3
7.2
EG Score
7.2(high)
EG Risk
33(Track)
EG Risk 33/100SSVC: 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
Severity72% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
29%
KEV
Not listed

Published

August 4, 2026

Last Modified

August 4, 2026

Advisory Details (1)

Auto-updated Aug 4, 2026
No patch confirmed yet.
generic

Zyxel security advisory for path traversal vulnerability in the configuration file execution CLI command of ZLD firewalls | Zyxel Networks

https://www.zyxel.com/global/en/support/security-advisories/zyxel-security-advisory-for-path-traversal-vulnerability-in-the-configuration-file-execution-cli-command-of-zld-firewalls-08-04-2026

Vendor Advisories for CVE-2026-14818(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 28× in last 7d / 74× 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 23:53 UTCEG score recompute
  2. 2026-08-20 23:53 UTCGHSA enrichment
  3. 2026-08-20 22:55 UTCEPSS rescore
  4. 2026-08-20 12:07 UTCGHSA enrichment
  5. 2026-08-20 00:10 UTCEG score recompute
  6. 2026-08-20 00:10 UTCGHSA enrichment
  7. 2026-08-19 17:03 UTCEPSS rescore
  8. 2026-08-19 12:24 UTCGHSA enrichment
  9. 2026-08-19 00:37 UTCEG score recompute
  10. 2026-08-19 00:37 UTCGHSA enrichment
  11. 2026-08-18 13:48 UTCEPSS rescore
  12. 2026-08-18 12:49 UTCGHSA enrichment
  13. 2026-08-18 00:59 UTCEG score recompute
  14. 2026-08-18 00:59 UTCGHSA enrichment
  15. 2026-08-17 13:47 UTCEPSS rescore
  16. 2026-08-17 13:07 UTCGHSA enrichment
  17. 2026-08-17 01:23 UTCEG score recompute
  18. 2026-08-17 01:23 UTCGHSA enrichment
  19. 2026-08-16 14:56 UTCEPSS rescore
  20. 2026-08-16 13:38 UTCEG score recompute
  21. 2026-08-16 13:38 UTCGHSA enrichment
  22. 2026-08-16 02:14 UTCEPSS rescore
  23. 2026-08-16 01:53 UTCGHSA enrichment
  24. 2026-08-15 14:08 UTCGHSA enrichment
  25. 2026-08-15 02:22 UTCEG score recompute
Show 49 more
  1. 2026-08-15 02:22 UTCGHSA enrichment
  2. 2026-08-15 01:30 UTCEPSS rescore
  3. 2026-08-14 14:37 UTCGHSA enrichment
  4. 2026-08-14 02:52 UTCEG score recompute
  5. 2026-08-14 02:52 UTCGHSA enrichment
  6. 2026-08-13 22:00 UTCEPSS rescore
  7. 2026-08-13 15:07 UTCGHSA enrichment
  8. 2026-08-13 03:22 UTCGHSA enrichment
  9. 2026-08-12 15:37 UTCEG score recompute
  10. 2026-08-12 15:37 UTCGHSA enrichment
  11. 2026-08-12 13:50 UTCEPSS rescore
  12. 2026-08-12 03:52 UTCGHSA enrichment
  13. 2026-08-11 16:07 UTCEG score recompute
  14. 2026-08-11 16:07 UTCGHSA enrichment
  15. 2026-08-11 13:42 UTCEPSS rescore
  16. 2026-08-11 04:22 UTCEG score recompute
  17. 2026-08-11 04:22 UTCGHSA enrichment
  18. 2026-08-10 23:59 UTCEPSS rescore
  19. 2026-08-10 16:37 UTCGHSA enrichment
  20. 2026-08-10 04:40 UTCGHSA enrichment
  21. 2026-08-09 16:55 UTCEG score recompute
  22. 2026-08-09 16:55 UTCGHSA enrichment
  23. 2026-08-09 13:46 UTCEPSS rescore
  24. 2026-08-09 05:11 UTCGHSA enrichment
  25. 2026-08-08 17:26 UTCEG score recompute
  26. 2026-08-08 17:26 UTCGHSA enrichment
  27. 2026-08-08 16:37 UTCEPSS rescore
  28. 2026-08-08 05:41 UTCGHSA enrichment
  29. 2026-08-07 17:56 UTCEG score recompute
  30. 2026-08-07 17:56 UTCGHSA enrichment
  31. 2026-08-07 06:11 UTCGHSA enrichment
  32. 2026-08-06 18:26 UTCEG score recompute
  33. 2026-08-06 18:26 UTCGHSA enrichment
  34. 2026-08-06 13:46 UTCEPSS rescore
  35. 2026-08-06 06:41 UTCEG score recompute
  36. 2026-08-06 06:41 UTCGHSA enrichment
  37. 2026-08-05 19:17 UTCEPSS rescore
  38. 2026-08-05 18:56 UTCGHSA enrichment
  39. 2026-08-05 07:12 UTCGHSA enrichment
  40. 2026-08-04 19:26 UTCEG score recompute
  41. 2026-08-04 19:26 UTCGHSA enrichment
  42. 2026-08-04 18:56 UTCEG score recompute
  43. 2026-08-04 18:56 UTCGHSA enrichment
  44. 2026-08-04 15:09 UTCEPSS rescore
  45. 2026-08-04 14:53 UTCEG score recompute
  46. 2026-08-04 14:53 UTCGHSA enrichment
  47. 2026-08-04 04:27 UTCEG score recompute
  48. 2026-08-04 03:34 UTCEG score recompute
  49. 2026-08-04 03:33 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-14818?
CVE-2026-14818 is a high vulnerability published on August 4, 2026. A path traversal vulnerability in the CLI command used to execute configuration files in Zyxel ATP series firmware versions from V4.32 through V5.42 Patch 1, USG FLEX series firmware versions from V4.50 through V5.42 Patch 1, USG FLEX 50(W) series firmware versions from V4.16 through V5.42 Patch 1,…
When was CVE-2026-14818 disclosed?
CVE-2026-14818 was first published in the National Vulnerability Database on August 4, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-14818 actively exploited?
CVE-2026-14818 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 70.8% of all scored CVEs.
What is the CVSS score of CVE-2026-14818?
CVE-2026-14818 has a CVSS v3 base score of 7.2 (NVD).
How do I remediate CVE-2026-14818?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-14818, 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-2026-14818

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