CVE-2026-76923

MEDIUMPre-NVD 5.55.5—
EchelonGraph scoreMEDIUM confidence

Score 5.5 from GitHub Security Advisory published 2026-08-20. A secondary CVSS source baseline 5.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this week
5.5EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0.1%CVSS: 5.5Exploit: None knownExposed services: Not assessed

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

Bluetooth HFP Profile protocol dissector crash in 4.6.0 to 4.6.7 and 4.4.0 to 4.4.18 allows denial of service

CVSS v3
5.5
EG Score
5.5MEDIUMmedium confidence
EG Risk
25
EG Risk 25/100CISA SSVC

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
Severity55% × 45%
Exploitation0% × 40%
Automatability0% × 15%
CISA SSVC: Track at every mission impact level.
Action: No fix is confirmed yet. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines, and watch the vendor's advisory for the fix.
EPSS PROB
0.1%
EPSS %ILE
2nd
KEV
Not listed

CISA SSVCTrack at every mission impact level.

No fix is confirmed yet. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines, and watch the vendor's advisory for the fix.

Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). Mission impact is CISA's Mission & Well-being decision point, and only you can judge it: high means the affected system is essential to your organisation's mission, or its compromise could cause irreversible harm to people. CISA's decision table

Published

August 19, 2026

Last Modified

August 31, 2026

Advisory Details (2)

Auto-updated Aug 19, 2026
No patch confirmed yet.
generic

Short +XAPL accessory parameter causes heap out-of-bounds read (#21451) · Issues · Wireshark Foundation / Wireshark · GitLab

https://gitlab.com/wireshark/wireshark/-/work_items/21451
generic

Wireshark • Go Deep | Wireshark • wnpa-sec-2026-79 Bluetooth HFP Profile protocol dissector crash

https://www.wireshark.org/security/wnpa-sec-2026-79.html

Vendor Advisories for CVE-2026-76923(1)

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

Affected Packages

(3 across 3 ecosystems)
Debian:12(1)
PackageVulnerable rangeFix by version rangeDependents
wireshark4.0.10-1 ... 4.6.6-2 (50 versions)
  • every version on: no fix on record
—
Debian:13(1)
PackageVulnerable rangeFix by version rangeDependents
wireshark4.4.13-0+deb13u1 ... 4.4.9-1 (7 versions)
  • every version up to 4.4.18-0+deb13u1: fixed in 4.4.18-0+deb13u1
—
Debian:14(1)
PackageVulnerable rangeFix by version rangeDependents
wireshark4.4.7-1 ... 4.6.6-2 (16 versions)
  • every version on: no fix on record
—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 16× in last 7d / 72× 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 121 total refreshes for this CVE.

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

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-76923?
CVE-2026-76923 is a medium vulnerability published on August 19, 2026. Bluetooth HFP Profile protocol dissector crash in 4.6.0 to 4.6.7 and 4.4.0 to 4.4.18 allows denial of service
When was CVE-2026-76923 disclosed?
CVE-2026-76923 was first published on August 19, 2026, with the most recent update on August 31, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-76923 actively exploited?
CVE-2026-76923 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.1% probability of exploitation in the next 30 days (2nd percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-76923?
CVE-2026-76923 has a CVSS base score of 5.5 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-76923?
No fix for CVE-2026-76923 is confirmed yet. Until one is published, restrict network exposure of the affected system or apply the vendor's mitigation — for example, keep it off the internet or limit it to trusted networks — and watch the vendor's advisory for the fix. The vendor advisories EchelonGraph has for CVE-2026-76923 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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