CVE-2026-14480

CRITICALPre-NVD 9.99.9—
EchelonGraph scoreHIGH confidence

Score 9.9 from GitHub Security Advisory (severity: HIGH) published 2026-07-11. a secondary CVSS source baseline 9.9; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this week
9.9
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 1%CVSS: 9.9Exploit: NoneExposed: 0

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

OpenPLC Runtime v3 contains an authenticated arbitrary file write vulnerability in the legacy web UI program‑upload workflow. The application stores an attacker‑supplied filename (prog_file) directly into the Programs.File database field and later uses this value as the destination path for an uploaded file without validating or restricting the path. Because Python os.path.join() honors attacker‑controlled absolute paths, an authenticated user can write arbitrary files anywhere writable by the OpenPLC webserver process. In the default build pipeline, all C++ source files within the OpenPLC runtime core directory are automatically compiled into the executable runtime binary. By writing a malicious .cpp file into this directory, an authenticated attacker can escalate the arbitrary file write into arbitrary native code execution when the operator triggers a normal program compilation and runtime start.

CVSS v3
9.9
EG Score
9.9(high)
EG Risk
45(Track)
EG Risk 45/100SSVC: 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
Severity99% × 45%
Exploitation1% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS
45.8%
KEV
Not listed

Published

July 10, 2026

Last Modified

July 13, 2026

Advisory Details (2)

Auto-updated Jul 21, 2026
⚠️ Active exploitation confirmed. Patch available. Sources: cisa.
cisa Patch Available🔴 Active Exploitation

OpenPLC v3 | CISA

OpenPLC v3 | CISA. Listed in CISA Known Exploited Vulnerabilities catalog.

https://www.cisa.gov/news-events/ics-advisories/icsa-26-190-01
generic

CSAF/csaf_files/OT/white/2026/icsa-26-190-01.json at develop · cisagov/CSAF · GitHub

https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsa-26-190-01.json

Vendor Advisories for CVE-2026-14480(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 / 56× 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. 2026-07-23 03:05 UTCEG score recompute
  2. 2026-07-22 14:08 UTCEPSS rescore
  3. 2026-07-21 15:24 UTCEPSS rescore
  4. 2026-07-20 17:08 UTCEPSS rescore
  5. 2026-07-19 14:30 UTCEPSS rescore
  6. 2026-07-19 02:28 UTCEPSS rescore
  7. 2026-07-18 10:04 UTCEPSS rescore
  8. 2026-07-17 06:35 UTCGHSA enrichment
  9. 2026-07-17 02:53 UTCGHSA enrichment
  10. 2026-07-16 23:11 UTCGHSA enrichment
  11. 2026-07-16 19:30 UTCGHSA enrichment
  12. 2026-07-16 17:02 UTCEPSS rescore
  13. 2026-07-16 15:44 UTCGHSA enrichment
  14. 2026-07-16 12:01 UTCGHSA enrichment
  15. 2026-07-16 08:19 UTCGHSA enrichment
  16. 2026-07-16 04:33 UTCGHSA enrichment
  17. 2026-07-16 00:51 UTCGHSA enrichment
  18. 2026-07-15 21:09 UTCGHSA enrichment
  19. 2026-07-15 17:27 UTCGHSA enrichment
  20. 2026-07-15 16:57 UTCEPSS rescore
  21. 2026-07-15 13:39 UTCGHSA enrichment
  22. 2026-07-15 09:56 UTCGHSA enrichment
  23. 2026-07-15 06:13 UTCGHSA enrichment
  24. 2026-07-15 02:32 UTCGHSA enrichment
  25. 2026-07-15 02:00 UTCEPSS rescore
Show 31 more
  1. 2026-07-14 22:51 UTCGHSA enrichment
  2. 2026-07-14 19:09 UTCGHSA enrichment
  3. 2026-07-14 15:27 UTCGHSA enrichment
  4. 2026-07-14 11:44 UTCGHSA enrichment
  5. 2026-07-14 08:03 UTCGHSA enrichment
  6. 2026-07-14 04:18 UTCGHSA enrichment
  7. 2026-07-14 00:36 UTCGHSA enrichment
  8. 2026-07-13 22:30 UTCEPSS rescore
  9. 2026-07-13 20:55 UTCGHSA enrichment
  10. 2026-07-13 17:13 UTCGHSA enrichment
  11. 2026-07-13 13:32 UTCGHSA enrichment
  12. 2026-07-13 09:51 UTCGHSA enrichment
  13. 2026-07-13 06:12 UTCEPSS rescore
  14. 2026-07-13 06:10 UTCGHSA enrichment
  15. 2026-07-13 02:24 UTCGHSA enrichment
  16. 2026-07-12 22:43 UTCGHSA enrichment
  17. 2026-07-12 19:01 UTCGHSA enrichment
  18. 2026-07-12 15:20 UTCGHSA enrichment
  19. 2026-07-12 11:37 UTCGHSA enrichment
  20. 2026-07-12 07:56 UTCGHSA enrichment
  21. 2026-07-12 05:46 UTCEPSS rescore
  22. 2026-07-12 04:14 UTCGHSA enrichment
  23. 2026-07-12 00:32 UTCGHSA enrichment
  24. 2026-07-11 20:51 UTCGHSA enrichment
  25. 2026-07-11 17:09 UTCGHSA enrichment
  26. 2026-07-11 13:28 UTCGHSA enrichment
  27. 2026-07-11 09:47 UTCGHSA enrichment
  28. 2026-07-11 06:06 UTCGHSA enrichment
  29. 2026-07-11 02:23 UTCGHSA enrichment
  30. 2026-07-10 22:42 UTCEG score recompute
  31. 2026-07-10 22:42 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-14480?
CVE-2026-14480 is a critical vulnerability published on July 10, 2026. OpenPLC Runtime v3 contains an authenticated arbitrary file write vulnerability in the legacy web UI program‑upload workflow. The application stores an attacker‑supplied filename (prog_file) directly into the Programs.File database field and later uses this value as the destination path for an…
When was CVE-2026-14480 disclosed?
CVE-2026-14480 was first published in the National Vulnerability Database on July 10, 2026, with the most recent update on July 13, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-14480 actively exploited?
CVE-2026-14480 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 45.8% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-14480?
CVE-2026-14480 has a CVSS v3 base score of 9.9 (NVD).
How do I remediate CVE-2026-14480?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-14480, 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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