CVE-2026-55978

HIGHPre-NVD 8.48.4—
EchelonGraph scoreMEDIUM confidence

Score 8.4 from GitHub Security Advisory (severity: HIGH) published 2026-08-06. A secondary CVSS source baseline 8.4; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this week
8.4EG
EchelonGraph verdictPlan mitigationSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.1%CVSS: 8.4Exploit: None knownExposed services: Not assessed

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

An improper access control vulnerability in CatchPulse could allow a non-administrative local attacker to connect to an unrestricted kernel filter communication port and bypass CatchPulse's security policy enforcement.

CVSS v3
8.4
EG Score
8.4HIGHmedium confidence
EG Risk
38
EG Risk 38/100CISA 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
Severity84% × 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
3rd
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 6, 2026

Last Modified

August 26, 2026

Advisory Details (2)

Auto-updated Aug 6, 2026
No patch confirmed yet.
generic

Security Vulnerabilities – SecureAge Technology

https://www.secureage.com/security-vulnerabilities#
generic

CatchPulse – Multiple Vulnerabilities including Improper Access Control, Unprivileged SYSTEM-Level Operations and Denial of Service | Cyber Security Agency of Singapore

https://www.csa.gov.sg/alerts-and-advisories/alerts/al-2026-098/

Vendor Advisories for CVE-2026-55978(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 20× in last 7d / 83× 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 192 total refreshes for this CVE.

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

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-55978?
CVE-2026-55978 is a high vulnerability published on August 6, 2026. An improper access control vulnerability in CatchPulse could allow a non-administrative local attacker to connect to an unrestricted kernel filter communication port and bypass CatchPulse's security policy enforcement.
When was CVE-2026-55978 disclosed?
CVE-2026-55978 was first published on August 6, 2026, with the most recent update on August 26, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-55978 actively exploited?
CVE-2026-55978 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.1% probability of exploitation in the next 30 days (3rd percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-55978?
CVE-2026-55978 has a CVSS base score of 8.4 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-55978?
No fix for CVE-2026-55978 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-2026-55978 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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