CVE-2026-11841

CRITICALPre-NVD 9.49.4—
EchelonGraph scoreMEDIUM confidence

Score 9.4 from GitHub Security Advisory (severity: CRITICAL) published 2026-07-28. a secondary CVSS source baseline 9.4; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this week
9.4EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 9.4Exploit: None knownExposed: 0

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

An attacker may perform unauthenticated read and write operations on sensitive filesystem areas via the AppEngine Fileaccess over HTTP due to improper access restrictions. A critical filesystem directory was unintentionally exposed through the HTTP-based file access feature, allowing access without authentication. This includes device parameter files, enabling an attacker to read and modify application settings, including customer-defined passwords. Additionally, exposure of the custom application directory may allow execution of arbitrary Lua code within the sandboxed AppEngine environment.

CVSS v3
9.4
EG Score
9.4(medium)
EG Risk
57(Track)
EG Risk 57/100SSVC: 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
Severity94% × 45%
Exploitation0% × 40%
Automatability100% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
41%
KEV
Not listed

Published

July 28, 2026

Last Modified

September 9, 2026

Advisory Details (5)

Auto-updated Sep 14, 2026
🔬 Proof of concept available. Patch available. Sources: cisa.
generic
https://www.sick.com/media/docs/9/19/719/special_information_sick_operating_guidelines_cybersecurity_by_sick_en_im0106719.pdf
generic
https://www.sick.com/.well-known/csaf/white/2026/sca-2026-0010.pdf
generic
https://www.sick.com/.well-known/csaf/white/2026/sca-2026-0010.json
generic🟡 PoC Available

Common Vulnerability Scoring System Version 3.1 Calculator

https://www.first.org/cvss/calculator/3.1
cisa Patch Available

ICS Recommended Practices | CISA

https://www.cisa.gov/resources-tools/resources/ics-recommended-practices

Vendor Advisories for CVE-2026-11841(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 31× in last 7d / 158× 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 348 total refreshes for this CVE.

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

Frequently asked(5)

What is CVE-2026-11841?
CVE-2026-11841 is a critical vulnerability published on July 28, 2026. An attacker may perform unauthenticated read and write operations on sensitive filesystem areas via the AppEngine Fileaccess over HTTP due to improper access restrictions. A critical filesystem directory was unintentionally exposed through the HTTP-based file access feature, allowing access without…
When was CVE-2026-11841 disclosed?
CVE-2026-11841 was first published in the National Vulnerability Database on July 28, 2026, with the most recent update on September 9, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-11841 actively exploited?
CVE-2026-11841 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 58.9% of all scored CVEs.
What is the CVSS score of CVE-2026-11841?
CVE-2026-11841 has a CVSS v3 base score of 9.4 (NVD).
How do I remediate CVE-2026-11841?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-11841, 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.

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