CVE-2026-55398

LOWNVD 3.73.7—
EchelonGraph scoreMEDIUM confidence

Score 3.7 from GitHub Security Advisory published 2026-07-15. NVD baseline CVSS 3.7; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Trending — 3 sources updated this week
3.7EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 3.7Exploit: None knownExposed: 0

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

CVE-2026-55398 is a memory management vulnerability in Secure Access clients and servers prior to 14.55. Attackers with intimate knowledge of and total control over the tunnel protocol can create a non-persistent DoS against the server.

CVSS v3
3.7
EG Score
3.7(medium)
EG Risk
32(Track)
EG Risk 32/100SSVC: 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
Severity37% × 45%
Exploitation0% × 40%
Automatability100% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
28%
KEV
Not listed

Published

July 15, 2026

Last Modified

July 16, 2026

Advisory Details (1)

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

CVE-2026-55398 | Absolute Security

https://www.absolute.com/platform/security-information/vulnerability-archive/cve-2026-55398

Vendor Advisories for CVE-2026-55398(1)

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

Weakness Classification(2)

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

Data Freshness Timeline

(refreshed 11× in last 7d / 46× 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 03:45 UTCEG score recompute
  2. 2026-08-30 03:45 UTCGHSA enrichment
  3. 2026-08-30 01:22 UTCEPSS rescore
  4. 2026-08-28 21:41 UTCEPSS rescore
  5. 2026-08-27 14:25 UTCEPSS rescore
  6. 2026-08-26 14:58 UTCEG score recompute
  7. 2026-08-26 14:58 UTCGHSA enrichment
  8. 2026-08-26 14:46 UTCEPSS rescore
  9. 2026-08-25 13:49 UTCEPSS rescore
  10. 2026-08-23 12:00 UTCEG score recompute
  11. 2026-08-23 12:00 UTCGHSA enrichment
  12. 2026-08-23 00:19 UTCEPSS rescore
  13. 2026-08-21 23:49 UTCEPSS rescore
  14. 2026-08-20 22:55 UTCEPSS rescore
  15. 2026-08-20 09:18 UTCEG score recompute
  16. 2026-08-20 09:18 UTCGHSA enrichment
  17. 2026-08-19 17:04 UTCEPSS rescore
  18. 2026-08-18 13:48 UTCEPSS rescore
  19. 2026-08-17 13:47 UTCEPSS rescore
  20. 2026-08-17 06:35 UTCEG score recompute
  21. 2026-08-17 06:35 UTCGHSA enrichment
  22. 2026-08-16 14:56 UTCEPSS rescore
  23. 2026-08-16 02:14 UTCEPSS rescore
  24. 2026-08-15 01:30 UTCEPSS rescore
  25. 2026-08-14 03:46 UTCEG score recompute
Show 46 more
  1. 2026-08-14 03:46 UTCGHSA enrichment
  2. 2026-08-13 22:00 UTCEPSS rescore
  3. 2026-08-12 13:51 UTCEPSS rescore
  4. 2026-08-11 01:04 UTCEG score recompute
  5. 2026-08-11 01:04 UTCGHSA enrichment
  6. 2026-08-11 00:00 UTCEPSS rescore
  7. 2026-08-09 13:46 UTCEPSS rescore
  8. 2026-08-08 16:37 UTCEPSS rescore
  9. 2026-08-07 22:22 UTCEG score recompute
  10. 2026-08-07 22:22 UTCGHSA enrichment
  11. 2026-08-06 13:47 UTCEPSS rescore
  12. 2026-08-05 19:17 UTCEPSS rescore
  13. 2026-08-04 19:40 UTCEG score recompute
  14. 2026-08-04 19:39 UTCGHSA enrichment
  15. 2026-08-04 15:10 UTCEPSS rescore
  16. 2026-08-04 10:39 UTCEPSS rescore
  17. 2026-08-03 10:36 UTCEPSS rescore
  18. 2026-08-02 02:27 UTCEPSS rescore
  19. 2026-08-01 16:55 UTCEG score recompute
  20. 2026-08-01 16:55 UTCGHSA enrichment
  21. 2026-08-01 04:16 UTCEPSS rescore
  22. 2026-07-30 16:28 UTCEPSS rescore
  23. 2026-07-30 01:30 UTCEPSS rescore
  24. 2026-07-29 14:12 UTCEG score recompute
  25. 2026-07-29 14:12 UTCGHSA enrichment
  26. 2026-07-28 15:37 UTCEPSS rescore
  27. 2026-07-26 14:54 UTCEPSS rescore
  28. 2026-07-26 11:29 UTCEG score recompute
  29. 2026-07-26 11:29 UTCGHSA enrichment
  30. 2026-07-25 14:18 UTCEPSS rescore
  31. 2026-07-24 14:18 UTCEPSS rescore
  32. 2026-07-23 14:18 UTCEPSS rescore
  33. 2026-07-23 03:20 UTCEG score recompute
  34. 2026-07-22 14:08 UTCEPSS rescore
  35. 2026-07-21 15:25 UTCEPSS rescore
  36. 2026-07-20 17:08 UTCEPSS rescore
  37. 2026-07-19 14:31 UTCEPSS rescore
  38. 2026-07-19 14:31 UTCEPSS rescore
  39. 2026-07-19 02:29 UTCEPSS rescore
  40. 2026-07-18 10:04 UTCEPSS rescore
  41. 2026-07-16 21:24 UTCEG score recompute▼ 3.20
  42. 2026-07-16 21:24 UTCGHSA enrichment
  43. 2026-07-16 17:03 UTCEPSS rescore
  44. 2026-07-16 16:30 UTCNVD updateCVSS v3 → 3.7 · severity → LOW
  45. 2026-07-15 20:35 UTCEG score recompute
  46. 2026-07-15 20:34 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-55398?
CVE-2026-55398 is a low vulnerability published on July 15, 2026. CVE-2026-55398 is a memory management vulnerability in Secure Access clients and servers prior to 14.55. Attackers with intimate knowledge of and total control over the tunnel protocol can create a non-persistent DoS against the server.
When was CVE-2026-55398 disclosed?
CVE-2026-55398 was first published in the National Vulnerability Database on July 15, 2026, with the most recent update on July 16, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-55398 actively exploited?
CVE-2026-55398 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 71.8% of all scored CVEs.
What is the CVSS score of CVE-2026-55398?
CVE-2026-55398 has a CVSS v3 base score of 3.7 (NVD).
How do I remediate CVE-2026-55398?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-55398, 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-2026-55398

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