CVE-2026-55978

HIGHPre-NVD 8.48.4—
EchelonGraph scoreHIGH 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 a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 8.4Exploit: None knownExposed: 0

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

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
8.4(high)
EG Risk
38(Track)
EG Risk 38/100SSVC: 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
Severity84% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
5%
KEV
Not listed

Published

August 6, 2026

Last Modified

August 6, 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 27× in last 7d / 60× 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. 2026-08-21 03:19 UTCEG score recompute
  2. 2026-08-21 03:19 UTCGHSA enrichment
  3. 2026-08-20 22:55 UTCEPSS rescore
  4. 2026-08-20 14:19 UTCGHSA enrichment
  5. 2026-08-20 00:54 UTCEG score recompute
  6. 2026-08-20 00:54 UTCGHSA enrichment
  7. 2026-08-19 17:04 UTCEPSS rescore
  8. 2026-08-19 11:54 UTCGHSA enrichment
  9. 2026-08-18 22:58 UTCEG score recompute
  10. 2026-08-18 22:58 UTCGHSA enrichment
  11. 2026-08-18 13:48 UTCEPSS rescore
  12. 2026-08-18 10:02 UTCGHSA enrichment
  13. 2026-08-17 21:06 UTCEG score recompute
  14. 2026-08-17 21:06 UTCGHSA enrichment
  15. 2026-08-17 13:47 UTCEPSS rescore
  16. 2026-08-17 08:09 UTCGHSA enrichment
  17. 2026-08-16 19:14 UTCEG score recompute
  18. 2026-08-16 19:14 UTCGHSA enrichment
  19. 2026-08-16 14:56 UTCEPSS rescore
  20. 2026-08-16 06:18 UTCEG score recompute
  21. 2026-08-16 06:18 UTCGHSA enrichment
  22. 2026-08-16 02:14 UTCEPSS rescore
  23. 2026-08-15 17:23 UTCGHSA enrichment
  24. 2026-08-15 04:27 UTCEG score recompute
  25. 2026-08-15 04:27 UTCGHSA enrichment
Show 35 more
  1. 2026-08-15 01:30 UTCEPSS rescore
  2. 2026-08-14 15:31 UTCGHSA enrichment
  3. 2026-08-14 02:36 UTCEG score recompute
  4. 2026-08-14 02:36 UTCGHSA enrichment
  5. 2026-08-13 22:00 UTCEPSS rescore
  6. 2026-08-13 13:40 UTCGHSA enrichment
  7. 2026-08-13 00:42 UTCEG score recompute
  8. 2026-08-13 00:42 UTCGHSA enrichment
  9. 2026-08-12 13:51 UTCEPSS rescore
  10. 2026-08-12 11:47 UTCGHSA enrichment
  11. 2026-08-11 22:51 UTCEG score recompute
  12. 2026-08-11 22:51 UTCGHSA enrichment
  13. 2026-08-11 09:55 UTCEG score recompute
  14. 2026-08-11 09:55 UTCGHSA enrichment
  15. 2026-08-11 00:00 UTCEPSS rescore
  16. 2026-08-10 21:00 UTCGHSA enrichment
  17. 2026-08-10 08:04 UTCGHSA enrichment
  18. 2026-08-09 19:08 UTCEG score recompute
  19. 2026-08-09 19:08 UTCGHSA enrichment
  20. 2026-08-09 13:46 UTCEPSS rescore
  21. 2026-08-09 06:13 UTCGHSA enrichment
  22. 2026-08-08 17:18 UTCEG score recompute
  23. 2026-08-08 17:18 UTCGHSA enrichment
  24. 2026-08-08 16:37 UTCEPSS rescore
  25. 2026-08-08 04:22 UTCEG score recompute
  26. 2026-08-08 04:22 UTCGHSA enrichment
  27. 2026-08-07 15:26 UTCGHSA enrichment
  28. 2026-08-07 02:31 UTCGHSA enrichment
  29. 2026-08-06 13:36 UTCEG score recompute
  30. 2026-08-06 13:36 UTCGHSA enrichment
  31. 2026-08-06 12:33 UTCEG score recompute
  32. 2026-08-06 12:33 UTCGHSA enrichment
  33. 2026-08-06 10:23 UTCEG score recompute
  34. 2026-08-06 10:09 UTCEG score recompute
  35. 2026-08-06 10:08 UTCMITRE cvelistV5first tracked

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 in the National Vulnerability Database on August 6, 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% probability of exploitation in the next 30 days, which ranks it in the top 95.5% of all scored CVEs.
What is the CVSS score of CVE-2026-55978?
CVE-2026-55978 has a CVSS v3 base score of 8.4 (NVD).
How do I remediate CVE-2026-55978?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-55978, 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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