CVE-2026-14480

CRITICALPre-NVD 9.99.9—
EchelonGraph scoreMEDIUM 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
9.9EG
EchelonGraph verdictPlan mitigationSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.6%CVSS: 9.9Exploit: None knownExposed services: Not assessed

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

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
9.9CRITICALmedium confidence
EG Risk
45
EG Risk 45/100CISA SSVC

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%
CISA SSVC: Track at low or medium mission impact; Track* at high (mission-essential systems).
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
0.6%
EPSS %ILE
48th
KEV
Not listed

CISA SSVCTrack 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). Mission impact is CISA's Mission & Well-being decision point, and only you can judge it: high means the affected system is essential to your organisation's mission, or its compromise could cause irreversible harm to people. CISA's decision table

Published

July 10, 2026

Last Modified

July 13, 2026

Advisory Details (2)

Auto-updated Oct 6, 2026
No fix on record yet. Sources: cisa.
cisa

OpenPLC v3 | CISA

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 7× in last 7d / 46× 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 388 total refreshes for this CVE.

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

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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 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 0.6% probability of exploitation in the next 30 days (48th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-14480?
CVE-2026-14480 has a CVSS base score of 9.9 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-14480?
No fix for CVE-2026-14480 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-2026-14480 are linked in the Vendor Advisories panel on this page.

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