CVE-2026-18187

HIGHNVD 8.18.1—
EchelonGraph scoreHIGH confidence

Score 8.1 from GitHub Security Advisory (severity: HIGH) published 2026-07-30. NVD baseline CVSS 8.1; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Trending — 3 sources updated this week
8.1EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 8.1Exploit: None knownExposed: 0

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

A format string vulnerability was found in the Internal Backup on the ADM. The vulnerability occurs because user-controlled task input may be included in an error response and processed through an unsafe format string operation. An authenticated attacker can exploit this issue to disclose memory information or cause denial of service of the affected CGI process. Affected products and versions include: from ADM 4.1.0 through ADM 4.3.3.RUN1 as well as from ADM 5.0.0 through ADM 5.1.3.RI81.

CVSS v3
8.1
EG Score
8.1(high)
EG Risk
37(Track)
EG Risk 37/100SSVC: 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
Severity81% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
18%
KEV
Not listed

Published

July 30, 2026

Last Modified

August 4, 2026

Advisory Details (1)

Auto-updated Jul 30, 2026
No patch confirmed yet.
generic

AS-2026-018: ADM | ASUSTOR NAS

https://www.asustor.com/security/security_advisory_detail?id=67

Vendor Advisories for CVE-2026-18187(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 24× in last 7d / 110× 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 110 total refreshes for this CVE.

  1. 2026-08-26 08:41 UTCGHSA enrichment
  2. 2026-08-25 19:44 UTCEG score recompute
  3. 2026-08-25 19:44 UTCGHSA enrichment
  4. 2026-08-25 13:48 UTCEPSS rescore
  5. 2026-08-25 06:47 UTCGHSA enrichment
  6. 2026-08-24 17:50 UTCEG score recompute
  7. 2026-08-24 17:49 UTCGHSA enrichment
  8. 2026-08-24 03:09 UTCGHSA enrichment
  9. 2026-08-23 14:09 UTCGHSA enrichment
  10. 2026-08-23 01:11 UTCEG score recompute
  11. 2026-08-23 01:11 UTCGHSA enrichment
  12. 2026-08-23 00:19 UTCEPSS rescore
  13. 2026-08-22 12:15 UTCEG score recompute
  14. 2026-08-22 12:15 UTCGHSA enrichment
  15. 2026-08-21 23:49 UTCEPSS rescore
  16. 2026-08-21 23:18 UTCGHSA enrichment
  17. 2026-08-21 10:21 UTCEG score recompute
  18. 2026-08-21 10:21 UTCGHSA enrichment
  19. 2026-08-20 22:55 UTCEPSS rescore
  20. 2026-08-20 21:24 UTCGHSA enrichment
  21. 2026-08-20 08:28 UTCGHSA enrichment
  22. 2026-08-19 19:31 UTCEG score recompute
  23. 2026-08-19 19:31 UTCGHSA enrichment
  24. 2026-08-19 17:03 UTCEPSS rescore
  25. 2026-08-19 04:57 UTCGHSA enrichment
Show 75 more
  1. 2026-08-18 15:59 UTCEG score recompute
  2. 2026-08-18 15:59 UTCGHSA enrichment
  3. 2026-08-18 13:48 UTCEPSS rescore
  4. 2026-08-18 02:12 UTCEG score recompute
  5. 2026-08-18 02:11 UTCGHSA enrichment
  6. 2026-08-17 13:47 UTCEPSS rescore
  7. 2026-08-17 13:12 UTCGHSA enrichment
  8. 2026-08-17 00:16 UTCEG score recompute
  9. 2026-08-17 00:16 UTCGHSA enrichment
  10. 2026-08-16 14:56 UTCEPSS rescore
  11. 2026-08-16 11:19 UTCEG score recompute
  12. 2026-08-16 11:19 UTCGHSA enrichment
  13. 2026-08-16 02:14 UTCEPSS rescore
  14. 2026-08-15 22:23 UTCGHSA enrichment
  15. 2026-08-15 09:26 UTCEG score recompute
  16. 2026-08-15 09:26 UTCGHSA enrichment
  17. 2026-08-15 01:30 UTCEPSS rescore
  18. 2026-08-14 20:29 UTCGHSA enrichment
  19. 2026-08-14 07:33 UTCEG score recompute
  20. 2026-08-14 07:33 UTCGHSA enrichment
  21. 2026-08-13 22:00 UTCEPSS rescore
  22. 2026-08-13 18:36 UTCGHSA enrichment
  23. 2026-08-13 05:39 UTCGHSA enrichment
  24. 2026-08-12 16:42 UTCEG score recompute
  25. 2026-08-12 16:42 UTCGHSA enrichment
  26. 2026-08-12 13:50 UTCEPSS rescore
  27. 2026-08-12 03:46 UTCGHSA enrichment
  28. 2026-08-11 14:49 UTCEG score recompute
  29. 2026-08-11 14:48 UTCGHSA enrichment
  30. 2026-08-11 13:42 UTCEPSS rescore
  31. 2026-08-11 01:51 UTCEG score recompute
  32. 2026-08-11 01:51 UTCGHSA enrichment
  33. 2026-08-11 00:00 UTCEPSS rescore
  34. 2026-08-10 12:55 UTCGHSA enrichment
  35. 2026-08-09 23:58 UTCEG score recompute
  36. 2026-08-09 23:58 UTCGHSA enrichment
  37. 2026-08-09 13:46 UTCEPSS rescore
  38. 2026-08-09 11:02 UTCGHSA enrichment
  39. 2026-08-08 22:05 UTCEG score recompute
  40. 2026-08-08 22:05 UTCGHSA enrichment
  41. 2026-08-08 16:37 UTCEPSS rescore
  42. 2026-08-08 09:08 UTCGHSA enrichment
  43. 2026-08-07 20:12 UTCEG score recompute
  44. 2026-08-07 20:12 UTCGHSA enrichment
  45. 2026-08-07 07:15 UTCGHSA enrichment
  46. 2026-08-06 18:19 UTCEG score recompute
  47. 2026-08-06 18:19 UTCGHSA enrichment
  48. 2026-08-06 13:46 UTCEPSS rescore
  49. 2026-08-06 05:22 UTCEG score recompute
  50. 2026-08-06 05:22 UTCGHSA enrichment
  51. 2026-08-05 19:17 UTCEPSS rescore
  52. 2026-08-05 16:25 UTCGHSA enrichment
  53. 2026-08-05 03:28 UTCEG score recompute
  54. 2026-08-05 03:28 UTCGHSA enrichment
  55. 2026-08-04 15:10 UTCEPSS rescore
  56. 2026-08-04 14:32 UTCEG score recompute▲ 1.00
  57. 2026-08-04 14:32 UTCGHSA enrichment
  58. 2026-08-04 14:32 UTCNVD updateCVSS v3 → 8.1
  59. 2026-08-04 10:38 UTCEPSS rescore
  60. 2026-08-04 09:29 UTCEG score recompute
  61. 2026-08-04 09:29 UTCGHSA enrichment
  62. 2026-08-04 08:19 UTCEG score recompute
  63. 2026-08-04 08:19 UTCGHSA enrichment
  64. 2026-08-04 00:26 UTCGHSA enrichment
  65. 2026-08-03 11:25 UTCEG score recompute
  66. 2026-08-03 11:24 UTCGHSA enrichment
  67. 2026-08-03 10:35 UTCEPSS rescore
  68. 2026-08-02 22:24 UTCGHSA enrichment
  69. 2026-08-02 09:27 UTCEG score recompute
  70. 2026-08-02 09:27 UTCGHSA enrichment
  71. 2026-08-02 02:26 UTCEPSS rescore
  72. 2026-08-01 20:31 UTCGHSA enrichment
  73. 2026-08-01 07:34 UTCEG score recompute
  74. 2026-08-01 07:34 UTCGHSA enrichment
  75. 2026-08-01 04:15 UTCEPSS rescore

Frequently asked(5)

What is CVE-2026-18187?
CVE-2026-18187 is a high vulnerability published on July 30, 2026. A format string vulnerability was found in the Internal Backup on the ADM. The vulnerability occurs because user-controlled task input may be included in an error response and processed through an unsafe format string operation. An authenticated attacker can exploit this issue to disclose memory…
When was CVE-2026-18187 disclosed?
CVE-2026-18187 was first published in the National Vulnerability Database on July 30, 2026, with the most recent update 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-2026-18187 actively exploited?
CVE-2026-18187 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 82.0% of all scored CVEs.
What is the CVSS score of CVE-2026-18187?
CVE-2026-18187 has a CVSS v3 base score of 8.1 (NVD).
How do I remediate CVE-2026-18187?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-18187, 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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