CVE-2026-25507

MEDIUMNVD 6.36.3—
EchelonGraph scoreMEDIUM confidence

This medium-severity CVE scores 6.3 under NVD CVSS v3. EPSS exploit probability: 0.2%, top 90% 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, nvd
6.3EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 6.3Exploit: None knownExposed: 0

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

ESF-IDF is the Espressif Internet of Things (IOT) Development Framework. In versions 5.5.2, 5.4.3, 5.3.4, 5.2.6, and 5.1.6, a use-after-free vulnerability was reported in the BLE provisioning transport (protocomm_ble) layer. The issue can be triggered by a remote BLE client while the device is in provisioning mode. The vulnerability occurred when provisioning was stopped with keep_ble_on = true. In this configuration, internal protocomm_ble state and GATT metadata were freed while the BLE stack and GATT services remained active. Subsequent BLE read or write callbacks dereferenced freed memory, allowing a connected or newly connected client to trigger invalid memory acces. This issue has been patched in versions 5.5.3, 5.4.4, 5.3.5, 5.2.7, and 5.1.7.

CVSS v3
6.3
EG Score
6.3(medium)
EG Risk
28(Track)
EG Risk 28/100SSVC: 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
Severity63% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
11%
KEV
Not listed

Published

February 4, 2026

Last Modified

June 17, 2026

Advisory Details (8)

Auto-updated Aug 7, 2026
Patch available. Sources: github_commit, github.
github Patch Available

Use-after-free Vulnerability in BLE Provisioning · Advisory · espressif/esp-idf · GitHub

https://github.com/espressif/esp-idf/security/advisories/GHSA-h7r3-gmg9-xjmg
github_commit

commit dba9a7dc01e4 (espressif/esp-idf)

Fix landed in espressif/esp-idf commit dba9a7dc01e4 — awaiting tagged release

https://github.com/espressif/esp-idf/commit/dba9a7dc01e4dab14c77d328f6a6f46369aeee63
github_commit

commit cde7b7362adc (espressif/esp-idf)

Fix landed in espressif/esp-idf commit cde7b7362adc — awaiting tagged release

https://github.com/espressif/esp-idf/commit/cde7b7362adc15638c141c249681cbe5d23de663
github_commit

commit 894c28afe3f2 (espressif/esp-idf)

Fix landed in espressif/esp-idf commit 894c28afe3f2 — awaiting tagged release

https://github.com/espressif/esp-idf/commit/894c28afe3f2f8f31ff25b64191883517dddb5cf
github_commit

commit 4c3fdcd316f7 (espressif/esp-idf)

Fix landed in espressif/esp-idf commit 4c3fdcd316f7 — awaiting tagged release

https://github.com/espressif/esp-idf/commit/4c3fdcd316f780bab4ae5aa73c9626ea9fe24ac6
github_commit

commit 47552ff4fd82 (espressif/esp-idf)

Fix landed in espressif/esp-idf commit 47552ff4fd82 — awaiting tagged release

https://github.com/espressif/esp-idf/commit/47552ff4fd824caf38215468ebd2f31fb5f36d70
github_commit

commit 1ff264abf250 (espressif/esp-idf)

Fix landed in espressif/esp-idf commit 1ff264abf250 — awaiting tagged release

https://github.com/espressif/esp-idf/commit/1ff264abf2504cade46f0ce3a03f821310bcf6d7
github_commit

commit 0540c85140c2 (espressif/esp-idf)

Fix landed in espressif/esp-idf commit 0540c85140c2 — awaiting tagged release

https://github.com/espressif/esp-idf/commit/0540c85140c2c06c0cbecc8843277ea676d5c4a9

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 5× in last 7d / 23× 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 158 total refreshes for this CVE.

  1. 2026-09-20 20:15 UTCEPSS rescore
  2. 2026-09-18 23:30 UTCOSV refresh
  3. 2026-09-18 19:27 UTCEPSS rescore
  4. 2026-09-16 14:07 UTCEPSS rescore
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  17. 2026-08-31 03:02 UTCOSV refresh
  18. 2026-08-30 19:17 UTCEPSS rescore
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  1. 2026-08-20 22:55 UTCEPSS rescore
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  3. 2026-08-18 13:48 UTCEPSS rescore
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  6. 2026-08-16 02:14 UTCEPSS rescore
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  8. 2026-08-14 11:12 UTCEG score recompute
  9. 2026-08-13 22:00 UTCEPSS rescore
  10. 2026-08-13 03:31 UTCEG score recompute
  11. 2026-08-12 13:50 UTCEPSS rescore
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  14. 2026-08-09 15:51 UTCEG score recompute
  15. 2026-08-09 13:46 UTCEPSS rescore
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  17. 2026-08-07 22:46 UTCEG score recompute
  18. 2026-08-06 13:46 UTCEPSS rescore
  19. 2026-08-06 04:22 UTCEG score recompute
  20. 2026-08-05 19:17 UTCEPSS rescore
  21. 2026-08-04 15:10 UTCEPSS rescore
  22. 2026-08-03 10:36 UTCEPSS rescore
  23. 2026-08-02 21:25 UTCEG score recompute
  24. 2026-08-02 02:26 UTCEPSS rescore
  25. 2026-08-01 04:16 UTCEPSS rescore
  26. 2026-07-30 23:21 UTCOSV refresh
  27. 2026-07-30 16:27 UTCEPSS rescore
  28. 2026-07-30 01:30 UTCEPSS rescore
  29. 2026-07-28 15:36 UTCEPSS rescore
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  37. 2026-07-23 03:07 UTCEG score recompute
  38. 2026-07-22 14:08 UTCEPSS rescore
  39. 2026-07-21 15:24 UTCEPSS rescore
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  41. 2026-07-20 17:08 UTCEPSS rescore
  42. 2026-07-19 14:31 UTCEPSS rescore
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  44. 2026-07-19 02:29 UTCEPSS rescore
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  46. 2026-07-18 10:04 UTCEPSS rescore
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  48. 2026-07-16 17:03 UTCEPSS rescore
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  50. 2026-07-15 16:57 UTCEPSS rescore
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  54. 2026-07-13 22:30 UTCEPSS rescore
  55. 2026-07-13 08:07 UTCOSV refresh
  56. 2026-07-13 06:13 UTCEPSS rescore
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  60. 2026-07-11 08:27 UTCEPSS rescore
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  72. 2026-07-01 15:06 UTCEPSS rescore
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  74. 2026-06-30 23:22 UTCEPSS rescore
  75. 2026-06-30 23:22 UTCEPSS rescore

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Frequently asked(5)

What is CVE-2026-25507?
CVE-2026-25507 is a medium vulnerability published on February 4, 2026. ESF-IDF is the Espressif Internet of Things (IOT) Development Framework. In versions 5.5.2, 5.4.3, 5.3.4, 5.2.6, and 5.1.6, a use-after-free vulnerability was reported in the BLE provisioning transport (protocommble) layer. The issue can be triggered by a remote BLE client while the device is in…
When was CVE-2026-25507 disclosed?
CVE-2026-25507 was first published in the National Vulnerability Database on February 4, 2026, with the most recent update on June 17, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-25507 actively exploited?
CVE-2026-25507 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 88.7% of all scored CVEs.
What is the CVSS score of CVE-2026-25507?
CVE-2026-25507 has a CVSS v3 base score of 6.3 (NVD).
How do I remediate CVE-2026-25507?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-25507, 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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