CVE-2026-73661

HIGHPre-NVD 8.68.6—
EchelonGraph scoreMEDIUM confidence

This high-severity CVE scores 8.6 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.3%, top 73% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: epss, secondary
8.6EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 8.6Exploit: None knownExposed: 0

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

FreePBX is an open source IP PBX. Prior to 16.0.47 and 17.0.30, the FreePBX Framework module permits a crafted backup to restore the hidden AUTHTYPE setting with the value none through runRestore() in amp_conf/htdocs/admin/libraries/Builtin/Restore.php. An authenticated user with sufficient backup-restore access or write access to backup files can thereby disable FreePBX authentication during restoration, bypassing the user-interface removal of AUTHTYPE=none. This issue is fixed in versions 16.0.47 and 17.0.30.

CVSS v3
8.6
EG Score
8.6(medium)
EG Risk
39(Track)
EG Risk 39/100SSVC: 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
Severity86% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
27%
KEV
Not listed

Published

August 13, 2026

Last Modified

September 18, 2026

Advisory Details (3)

Auto-updated Aug 13, 2026
Patch available. Sources: github, github_commit.
github_commit

commit ea684be89abb (FreePBX/framework)

Fix landed in FreePBX/framework commit ea684be89abb — awaiting tagged release

https://github.com/FreePBX/framework/commit/ea684be89abb393d1aff7f979d5fd751ff338dfd
github_commit

commit 0591581654bc (FreePBX/framework)

Fix landed in FreePBX/framework commit 0591581654bc — awaiting tagged release

https://github.com/FreePBX/framework/commit/0591581654bc269df05cbb7093645d6934d4d861
github Patch Available

Authenticated Framework AUTHTYPE Can Be Restored From a Crafted Backup · Advisory · FreePBX/security-reporting · GitHub

https://github.com/FreePBX/security-reporting/security/advisories/GHSA-f6hc-rqxg-ch86

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 11× in last 7d / 51× 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. 2026-09-18 20:09 UTCEG score recompute
  2. 2026-09-18 19:28 UTCEPSS rescore
  3. 2026-09-18 00:24 UTCEG score recompute
  4. 2026-09-16 23:51 UTCEG score recompute
  5. 2026-09-16 14:08 UTCEPSS rescore
  6. 2026-09-16 05:15 UTCEPSS rescore
  7. 2026-09-15 04:17 UTCEG score recompute
  8. 2026-09-15 03:12 UTCEPSS rescore
  9. 2026-09-14 04:26 UTCEG score recompute
  10. 2026-09-12 17:11 UTCEG score recompute
  11. 2026-09-12 15:02 UTCEPSS rescore
  12. 2026-09-11 17:41 UTCEG score recompute
  13. 2026-09-11 14:53 UTCEPSS rescore
  14. 2026-09-10 17:28 UTCEG score recompute
  15. 2026-09-10 09:35 UTCEPSS rescore
  16. 2026-09-09 04:51 UTCEG score recompute
  17. 2026-09-08 22:01 UTCEPSS rescore
  18. 2026-09-07 16:27 UTCEG score recompute
  19. 2026-09-07 01:18 UTCEG score recompute
  20. 2026-09-06 13:48 UTCEPSS rescore
  21. 2026-09-06 01:16 UTCEG score recompute
  22. 2026-09-05 01:38 UTCEG score recompute
  23. 2026-09-04 13:53 UTCEG score recompute
  24. 2026-09-04 05:07 UTCEPSS rescore
  25. 2026-09-03 01:00 UTCEG score recompute
Show 45 more
  1. 2026-09-02 14:12 UTCEPSS rescore
  2. 2026-09-01 23:02 UTCEG score recompute
  3. 2026-09-01 13:54 UTCEPSS rescore
  4. 2026-09-01 11:17 UTCEG score recompute
  5. 2026-09-01 04:40 UTCEPSS rescore
  6. 2026-09-01 04:40 UTCEPSS rescore
  7. 2026-08-30 19:53 UTCEG score recompute
  8. 2026-08-30 19:18 UTCEPSS rescore
  9. 2026-08-30 19:17 UTCEPSS rescore
  10. 2026-08-30 08:08 UTCEG score recompute
  11. 2026-08-30 01:22 UTCEPSS rescore
  12. 2026-08-29 07:09 UTCEG score recompute
  13. 2026-08-28 21:42 UTCEPSS rescore
  14. 2026-08-27 19:32 UTCEG score recompute
  15. 2026-08-27 14:25 UTCEPSS rescore
  16. 2026-08-26 18:43 UTCEG score recompute
  17. 2026-08-26 14:47 UTCEPSS rescore
  18. 2026-08-25 17:12 UTCEG score recompute
  19. 2026-08-25 13:49 UTCEPSS rescore
  20. 2026-08-24 17:14 UTCEG score recompute
  21. 2026-08-23 04:46 UTCEG score recompute
  22. 2026-08-23 00:19 UTCEPSS rescore
  23. 2026-08-22 05:16 UTCEG score recompute
  24. 2026-08-21 23:49 UTCEPSS rescore
  25. 2026-08-21 05:46 UTCEG score recompute
  26. 2026-08-20 22:56 UTCEPSS rescore
  27. 2026-08-19 18:26 UTCEG score recompute
  28. 2026-08-19 17:04 UTCEPSS rescore
  29. 2026-08-18 18:41 UTCEG score recompute
  30. 2026-08-18 13:49 UTCEPSS rescore
  31. 2026-08-18 13:49 UTCEPSS rescore
  32. 2026-08-17 19:10 UTCEG score recompute
  33. 2026-08-17 13:47 UTCEPSS rescore
  34. 2026-08-16 18:36 UTCEG score recompute
  35. 2026-08-16 14:56 UTCEPSS rescore
  36. 2026-08-16 14:56 UTCEPSS rescore
  37. 2026-08-16 06:50 UTCEG score recompute
  38. 2026-08-16 02:15 UTCEPSS rescore
  39. 2026-08-15 07:21 UTCEG score recompute
  40. 2026-08-15 01:31 UTCEPSS rescore
  41. 2026-08-14 19:36 UTCEG score recompute
  42. 2026-08-14 18:34 UTCEG score recompute
  43. 2026-08-13 22:25 UTCEG score recompute
  44. 2026-08-13 21:32 UTCEG score recompute
  45. 2026-08-13 21:31 UTCMITRE cvelistV5first tracked

Frequently asked(5)

What is CVE-2026-73661?
CVE-2026-73661 is a high vulnerability published on August 13, 2026. FreePBX is an open source IP PBX. Prior to 16.0.47 and 17.0.30, the FreePBX Framework module permits a crafted backup to restore the hidden AUTHTYPE setting with the value none through runRestore() in amp_conf/htdocs/admin/libraries/Builtin/Restore.php. An authenticated user with sufficient…
When was CVE-2026-73661 disclosed?
CVE-2026-73661 was first published in the National Vulnerability Database on August 13, 2026, with the most recent update on September 18, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-73661 actively exploited?
CVE-2026-73661 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 73.0% of all scored CVEs.
What is the CVSS score of CVE-2026-73661?
CVE-2026-73661 has a CVSS v3 base score of 8.6 (NVD).
How do I remediate CVE-2026-73661?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-73661, 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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