CVE-2026-9759

MEDIUMNVD 5.55.5—
EchelonGraph scoreMEDIUM confidence

Score 5.5 from GitHub Security Advisory published 2026-05-27. NVD baseline CVSS 5.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
5.5
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS: 0%CVSS: 5.5Exploit: NoneExposed: 0

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

ROHC protocol dissector crash in Wireshark 4.6.0 to 4.6.5 and 4.4.0 to 4.4.15 allows denial of service

CVSS v3
5.5
EG Score
5.5(medium)
EPSS
0.7%
KEV
Not listed

Published

May 27, 2026

Last Modified

June 1, 2026

Advisory Details (2)

Auto-updated Jun 15, 2026
No patch confirmed yet.
generic

Wireshark • Go Deep | Wireshark • wnpa-sec-2026-51 ROHC protocol dissector crash

https://www.wireshark.org/security/wnpa-sec-2026-51.html
generic

ROHC NULL Write / Heap Corruption with uncompressed profile and large CID (#21243) · Issues · Wireshark Foundation / Wireshark · GitLab

https://gitlab.com/wireshark/wireshark/-/work_items/21243

Vendor Advisories for CVE-2026-9759(1)

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

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 5× in last 7d / 30× 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. 2026-07-16 17:03 UTCEPSS rescore
  2. 2026-07-15 16:57 UTCEPSS rescore
  3. 2026-07-13 22:31 UTCEPSS rescore
  4. 2026-07-12 05:46 UTCEPSS rescore
  5. 2026-07-11 22:50 UTCGHSA enrichment
  6. 2026-07-11 08:27 UTCEPSS rescore
  7. 2026-07-09 19:10 UTCEPSS rescore
  8. 2026-07-08 22:53 UTCGHSA enrichment
  9. 2026-07-07 13:46 UTCEPSS rescore
  10. 2026-07-06 16:27 UTCEPSS rescore
  11. 2026-07-06 02:23 UTCEPSS rescore
  12. 2026-07-04 06:31 UTCEPSS rescore
  13. 2026-07-02 23:36 UTCGHSA enrichment
  14. 2026-07-01 15:07 UTCEPSS rescore
  15. 2026-07-01 03:59 UTCGHSA enrichment
  16. 2026-06-30 23:22 UTCEPSS rescore
  17. 2026-06-29 14:06 UTCEPSS rescore
  18. 2026-06-29 13:54 UTCGHSA enrichment
  19. 2026-06-28 14:07 UTCEPSS rescore
  20. 2026-06-28 06:39 UTCGHSA enrichment
  21. 2026-06-28 04:56 UTCEPSS rescore
  22. 2026-06-27 05:36 UTCGHSA enrichment
  23. 2026-06-27 03:08 UTCEPSS rescore
  24. 2026-06-26 02:08 UTCGHSA enrichment
  25. 2026-06-24 23:25 UTCGHSA enrichment
Show 43 more
  1. 2026-06-24 14:05 UTCEPSS rescore
  2. 2026-06-23 21:33 UTCEPSS rescore
  3. 2026-06-21 01:59 UTCEPSS rescore
  4. 2026-06-19 19:26 UTCEPSS rescore
  5. 2026-06-18 17:52 UTCEPSS rescore
  6. 2026-06-17 18:28 UTCGHSA enrichment
  7. 2026-06-17 17:53 UTCEPSS rescore
  8. 2026-06-16 17:53 UTCEPSS rescore
  9. 2026-06-16 15:52 UTCGHSA enrichment
  10. 2026-06-15 17:49 UTCEPSS rescore
  11. 2026-06-15 13:17 UTCGHSA enrichment
  12. 2026-06-14 23:18 UTCEPSS rescore
  13. 2026-06-14 08:45 UTCGHSA enrichment
  14. 2026-06-13 23:00 UTCEPSS rescore
  15. 2026-06-13 08:10 UTCGHSA enrichment
  16. 2026-06-12 23:12 UTCEPSS rescore
  17. 2026-06-12 23:12 UTCEPSS rescore
  18. 2026-06-12 07:34 UTCGHSA enrichment
  19. 2026-06-11 14:00 UTCEPSS rescore
  20. 2026-06-11 07:00 UTCGHSA enrichment
  21. 2026-06-10 13:22 UTCEPSS rescore
  22. 2026-06-10 06:26 UTCGHSA enrichment
  23. 2026-06-09 05:52 UTCGHSA enrichment
  24. 2026-06-08 14:17 UTCEPSS rescore
  25. 2026-06-08 05:18 UTCGHSA enrichment
  26. 2026-06-07 15:25 UTCEPSS rescore
  27. 2026-06-07 04:44 UTCGHSA enrichment
  28. 2026-06-06 04:10 UTCGHSA enrichment
  29. 2026-06-05 22:47 UTCEPSS rescore
  30. 2026-06-05 06:10 UTCEPSS rescore
  31. 2026-06-05 03:36 UTCGHSA enrichment
  32. 2026-06-04 13:12 UTCEPSS rescore
  33. 2026-06-04 03:02 UTCGHSA enrichment
  34. 2026-06-03 02:28 UTCGHSA enrichment
  35. 2026-06-02 20:13 UTCEPSS rescore
  36. 2026-06-02 01:54 UTCGHSA enrichment
  37. 2026-06-01 13:52 UTCEPSS rescore
  38. 2026-06-01 01:20 UTCGHSA enrichment
  39. 2026-05-31 22:30 UTCEPSS rescore
  40. 2026-05-31 00:16 UTCEPSS rescore
  41. 2026-05-29 13:44 UTCEPSS rescore
  42. 2026-05-28 13:44 UTCEPSS rescore
  43. 2026-05-27 20:37 UTCEG score recompute

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-9759?
CVE-2026-9759 is a medium vulnerability published on May 27, 2026. ROHC protocol dissector crash in Wireshark 4.6.0 to 4.6.5 and 4.4.0 to 4.4.15 allows denial of service
When was CVE-2026-9759 disclosed?
CVE-2026-9759 was first published in the National Vulnerability Database on May 27, 2026, with the most recent update on June 1, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-9759 actively exploited?
CVE-2026-9759 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.7% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-9759?
CVE-2026-9759 has a CVSS v3 base score of 5.5 (NVD).
How do I remediate CVE-2026-9759?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-9759, 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

Explore the affected products and dependency analysis for CVE-2026-9759

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