CVE-2026-76919

HIGHNVD 7.57.5—
EchelonGraph scoreMEDIUM confidence

This high-severity CVE scores 7.5 under NVD CVSS v3. EPSS exploit probability: 0.3% (21st percentile of EPSS-scored CVEs). GitHub Security Advisory enrichment pending alignment with NVD CVSS.

Triggered by: NVD CVSS baseline
Sources: epss, ghsa, nvd
Trending — 3 sources updated this week
7.5EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.3%CVSS: 7.5Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

ESS 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
7.5
EG Score
7.5HIGHmedium confidence
EG Risk
34
EG Risk 34/100CISA 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
Severity75% × 45%
Exploitation0% × 40%
Automatability0% × 15%
CISA SSVC: Track at every mission impact level.
Action: A fix is available. Apply it within your standard update timelines.
EPSS PROB
0.3%
EPSS %ILE
21st
KEV
Not listed

CISA SSVCTrack at every mission impact level.

A fix is available. Apply it within your standard update timelines.

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

September 17, 2026

Advisory Details (2)

Auto-updated Aug 19, 2026
Patch available.
generic

Malformed ESS BIT STRING can use uninitialized TVB pointer in attribute-flag dissection (#21467) · Issues · Wireshark Foundation / Wireshark · GitLab

https://gitlab.com/wireshark/wireshark/-/work_items/21467
generic

Wireshark • Go Deep | Wireshark • wnpa-sec-2026-86 ESS protocol dissector crash

https://www.wireshark.org/security/wnpa-sec-2026-86.html

Vendor Advisories for CVE-2026-76919(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 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 170 total refreshes for this CVE.

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

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-76919?
CVE-2026-76919 is a high vulnerability published on August 19, 2026. ESS 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-2026-76919 disclosed?
CVE-2026-76919 was first published on August 19, 2026, with the most recent update on September 17, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-76919 actively exploited?
CVE-2026-76919 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.3% probability of exploitation in the next 30 days (21st percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-76919?
CVE-2026-76919 has a CVSS v3 base score of 7.5 (NVD).
How do I remediate CVE-2026-76919?
A fix for CVE-2026-76919 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-76919 are linked in the Vendor Advisories panel on this page.

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