CVE-2026-15173

MEDIUMNVD 5.55.5—
EchelonGraph scoreMEDIUM confidence

This medium-severity CVE scores 5.5 under NVD CVSS v3. EPSS exploit probability: 0.1%, top 100% of all CVEs by exploit prediction. GitHub Security Advisory enrichment pending alignment with NVD CVSS.

Triggered by: NVD CVSS baseline
Sources: epss, ghsa, nvd
Trending — 3 sources updated this weekElevated
5.5EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 5.5Exploit: Elevated riskExposed: 0

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

pcapng file parser crash in Wireshark 4.6.0 to 4.6.6 allows denial of service

CVSS v3
5.5
EG Score
5.5(medium)
EG Risk
41(Track)
EG Risk 41/100SSVC: 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
Severity55% × 45%
Exploitation40% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
0%
KEV
Not listed

Published

July 8, 2026

Last Modified

July 9, 2026

Advisory Details (1)

Auto-updated Jul 8, 2026
No patch confirmed yet.
generic

Darwin DPIB UUID option rewrite heap overflow (#21285) · Issues · Wireshark Foundation / Wireshark · GitLab

https://gitlab.com/wireshark/wireshark/-/work_items/21285

Vendor Advisories for CVE-2026-15173(1)

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

Affected Packages

(4 across 4 ecosystems)
Debian:11(1)
PackageVulnerable rangeFixed inDependents
wireshark3.4.10-0+deb11u1 ... 4.6.6-2 (69 versions)——
Debian:12(1)
PackageVulnerable rangeFixed inDependents
wireshark4.0.10-1 ... 4.6.6-2 (50 versions)——
Debian:13(1)
PackageVulnerable rangeFixed inDependents
wireshark4.4.13-0+deb13u1 ... 4.6.6-2 (20 versions)——
Debian:14(1)
PackageVulnerable rangeFixed inDependents
wireshark4.4.7-1 ... 4.6.6-2 (16 versions)——

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 15× in last 7d / 63× 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. 2026-08-30 07:28 UTCEG score recompute
  2. 2026-08-30 07:28 UTCGHSA enrichment
  3. 2026-08-30 01:22 UTCEPSS rescore
  4. 2026-08-28 21:41 UTCEPSS rescore
  5. 2026-08-27 21:48 UTCEG score recompute
  6. 2026-08-27 21:48 UTCGHSA enrichment
  7. 2026-08-27 14:25 UTCEPSS rescore
  8. 2026-08-26 14:46 UTCEPSS rescore
  9. 2026-08-26 04:45 UTCEG score recompute
  10. 2026-08-26 04:45 UTCGHSA enrichment
  11. 2026-08-25 13:48 UTCEPSS rescore
  12. 2026-08-24 23:52 UTCEG score recompute
  13. 2026-08-24 23:52 UTCGHSA enrichment
  14. 2026-08-23 21:49 UTCEG score recompute
  15. 2026-08-23 21:49 UTCGHSA enrichment
  16. 2026-08-23 00:19 UTCEPSS rescore
  17. 2026-08-22 19:46 UTCGHSA enrichment
  18. 2026-08-21 17:43 UTCGHSA enrichment
  19. 2026-08-20 15:39 UTCEG score recompute
  20. 2026-08-20 15:39 UTCGHSA enrichment
  21. 2026-08-19 17:03 UTCEPSS rescore
  22. 2026-08-19 13:36 UTCEG score recompute
  23. 2026-08-19 13:36 UTCGHSA enrichment
  24. 2026-08-18 13:48 UTCEPSS rescore
  25. 2026-08-18 11:32 UTCEG score recompute
Show 74 more
  1. 2026-08-18 11:32 UTCGHSA enrichment
  2. 2026-08-17 13:47 UTCEPSS rescore
  3. 2026-08-17 09:22 UTCGHSA enrichment
  4. 2026-08-16 07:20 UTCEG score recompute
  5. 2026-08-16 07:20 UTCGHSA enrichment
  6. 2026-08-16 02:14 UTCEPSS rescore
  7. 2026-08-15 05:17 UTCEG score recompute
  8. 2026-08-15 05:17 UTCGHSA enrichment
  9. 2026-08-15 01:30 UTCEPSS rescore
  10. 2026-08-14 03:13 UTCGHSA enrichment
  11. 2026-08-13 01:11 UTCGHSA enrichment
  12. 2026-08-11 23:08 UTCGHSA enrichment
  13. 2026-08-10 21:05 UTCGHSA enrichment
  14. 2026-08-09 19:02 UTCEG score recompute
  15. 2026-08-09 19:02 UTCGHSA enrichment
  16. 2026-08-09 13:46 UTCEPSS rescore
  17. 2026-08-08 16:59 UTCEG score recompute
  18. 2026-08-08 16:59 UTCGHSA enrichment
  19. 2026-08-08 16:37 UTCEPSS rescore
  20. 2026-08-07 14:55 UTCEG score recompute
  21. 2026-08-07 14:55 UTCGHSA enrichment
  22. 2026-08-06 13:46 UTCEPSS rescore
  23. 2026-08-06 12:52 UTCEG score recompute
  24. 2026-08-06 12:52 UTCGHSA enrichment
  25. 2026-08-05 19:17 UTCEPSS rescore
  26. 2026-08-05 10:49 UTCEG score recompute
  27. 2026-08-05 10:49 UTCGHSA enrichment
  28. 2026-08-04 15:10 UTCEPSS rescore
  29. 2026-08-04 10:38 UTCEPSS rescore
  30. 2026-08-04 08:22 UTCEG score recompute
  31. 2026-08-04 08:21 UTCGHSA enrichment
  32. 2026-08-03 10:35 UTCEPSS rescore
  33. 2026-08-03 06:05 UTCGHSA enrichment
  34. 2026-08-02 03:50 UTCEG score recompute
  35. 2026-08-02 03:50 UTCGHSA enrichment
  36. 2026-08-02 02:26 UTCEPSS rescore
  37. 2026-08-01 04:15 UTCEPSS rescore
  38. 2026-08-01 01:46 UTCGHSA enrichment
  39. 2026-07-30 23:22 UTCEG score recompute
  40. 2026-07-30 23:22 UTCGHSA enrichment
  41. 2026-07-30 01:30 UTCEPSS rescore
  42. 2026-07-29 21:17 UTCGHSA enrichment
  43. 2026-07-28 17:42 UTCEG score recompute
  44. 2026-07-28 17:42 UTCGHSA enrichment
  45. 2026-07-28 15:36 UTCEPSS rescore
  46. 2026-07-27 15:38 UTCEG score recompute
  47. 2026-07-27 15:38 UTCGHSA enrichment
  48. 2026-07-27 14:13 UTCEPSS rescore
  49. 2026-07-26 14:54 UTCEPSS rescore
  50. 2026-07-26 14:54 UTCEPSS rescore
  51. 2026-07-26 12:24 UTCEG score recompute
  52. 2026-07-26 12:24 UTCGHSA enrichment
  53. 2026-07-24 14:17 UTCEPSS rescore
  54. 2026-07-23 03:05 UTCEG score recompute▲ 0.80
  55. 2026-07-22 14:08 UTCEPSS rescore
  56. 2026-07-21 15:24 UTCEPSS rescore
  57. 2026-07-20 17:08 UTCEPSS rescore
  58. 2026-07-18 10:04 UTCEPSS rescore
  59. 2026-07-16 17:02 UTCEPSS rescore
  60. 2026-07-16 11:36 UTCGHSA enrichment
  61. 2026-07-15 16:57 UTCEPSS rescore
  62. 2026-07-15 09:32 UTCGHSA enrichment
  63. 2026-07-14 07:28 UTCGHSA enrichment
  64. 2026-07-13 22:30 UTCEPSS rescore
  65. 2026-07-13 05:25 UTCGHSA enrichment
  66. 2026-07-12 05:46 UTCEPSS rescore
  67. 2026-07-12 03:21 UTCGHSA enrichment
  68. 2026-07-11 08:27 UTCEPSS rescore
  69. 2026-07-11 01:18 UTCGHSA enrichment
  70. 2026-07-09 23:15 UTCGHSA enrichment
  71. 2026-07-09 19:36 UTCNVD updateCVSS v3 → 5.5
  72. 2026-07-09 19:10 UTCEPSS rescore
  73. 2026-07-08 21:12 UTCEG score recompute
  74. 2026-07-08 21:10 UTCMITRE cvelistV5first tracked

Frequently asked(5)

What is CVE-2026-15173?
CVE-2026-15173 is a medium vulnerability published on July 8, 2026. pcapng file parser crash in Wireshark 4.6.0 to 4.6.6 allows denial of service
When was CVE-2026-15173 disclosed?
CVE-2026-15173 was first published in the National Vulnerability Database on July 8, 2026, with the most recent update on July 9, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-15173 actively exploited?
CVE-2026-15173 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 99.5% of all scored CVEs.
What is the CVSS score of CVE-2026-15173?
CVE-2026-15173 has a CVSS v3 base score of 5.5 (NVD).
How do I remediate CVE-2026-15173?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-15173, 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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