CVE-2026-19979

HIGHPre-NVD 8.38.3—
EchelonGraph scoreMEDIUM confidence

Score 8.3 from GitHub Security Advisory published 2026-08-17. a secondary CVSS source baseline 8.3; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this week
8.3EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 8.3Exploit: None knownExposed: 0

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

A vulnerability was identified in GL.iNet A1300, AX1800, AXT1800, BE1400, BE3600, BE6500, BE9300, BE10000, E5800, MT2500, MT3000, MT3600BE, MT5000, MT6000, X2000, X3000 and XE3000 up to 4.8.x. Affected by this vulnerability is the function COPY/MOVE of the component WebDAV Service. Such manipulation leads to authorization bypass. It is possible to launch the attack remotely. The vendor explains: "After our investigation, we have confirmed that the vulnerability described (...) does indeed exist."

CVSS v3
8.3
EG Score
8.3(medium)
EG Risk
53(Track)
EG Risk 53/100SSVC: 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
Severity83% × 45%
Exploitation0% × 40%
Automatability100% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
33%
KEV
Not listed

Published

August 17, 2026

Last Modified

August 20, 2026

Advisory Details (1)

Auto-updated Aug 17, 2026
No patch confirmed yet.
generic

CVE-issues/4.0.0/WebDAV Public-Share Destination Authorization Bypass.md at main · gl-inet/CVE-issues · GitHub

https://github.com/gl-inet/CVE-issues/blob/main/4.0.0/WebDAV%20Public-Share%20Destination%20Authorization%20Bypass.md

Vendor Advisories for CVE-2026-19979(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Weakness Classification(2)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 24× in last 7d / 106× 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 128 total refreshes for this CVE.

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

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Frequently asked(5)

What is CVE-2026-19979?
CVE-2026-19979 is a high vulnerability published on August 17, 2026. A vulnerability was identified in GL.iNet A1300, AX1800, AXT1800, BE1400, BE3600, BE6500, BE9300, BE10000, E5800, MT2500, MT3000, MT3600BE, MT5000, MT6000, X2000, X3000 and XE3000 up to 4.8.x. Affected by this vulnerability is the function COPY/MOVE of the component WebDAV Service. Such…
When was CVE-2026-19979 disclosed?
CVE-2026-19979 was first published in the National Vulnerability Database on August 17, 2026, with the most recent update on August 20, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-19979 actively exploited?
CVE-2026-19979 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 66.6% of all scored CVEs.
What is the CVSS score of CVE-2026-19979?
CVE-2026-19979 has a CVSS v3 base score of 8.3 (NVD).
How do I remediate CVE-2026-19979?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-19979, 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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