CVE-2026-12374

MEDIUMPre-NVD 6.46.4—
EchelonGraph scoreMEDIUM confidence

This medium-severity CVE scores 6.4 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.1%, top 100% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: epss, secondary
Trending — 3 sources updated this week
6.4EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 6.4Exploit: None knownExposed: 0

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

Improper certificate validation and a time-of-check time-of-use (TOCTOU) race condition in the PrivilegedHelperTool XPC service in Cato Client before v.5.13.1 on macOS allows a local authenticated attacker to escalate privileges to root via a self-signed certificate that bypasses the XPC caller verification and a symlink swap during package installation.

CVSS v3
6.4
EG Score
6.4(medium)
EG Risk
33(Track)
EG Risk 33/100SSVC: 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
Severity64% × 45%
Exploitation0% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
0%
KEV
Not listed

Published

July 1, 2026

Last Modified

July 2, 2026

References (1)

Vendor Advisories for CVE-2026-12374(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 5× in last 7d / 27× 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. 2026-09-11 14:52 UTCEPSS rescore
  2. 2026-09-10 09:34 UTCEPSS rescore
  3. 2026-09-06 13:47 UTCEPSS rescore
  4. 2026-09-06 02:31 UTCEG score recompute
  5. 2026-09-06 02:31 UTCGHSA enrichment
  6. 2026-09-04 05:06 UTCEPSS rescore
  7. 2026-08-30 13:12 UTCEG score recompute
  8. 2026-08-30 13:12 UTCGHSA enrichment
  9. 2026-08-28 21:40 UTCEPSS rescore
  10. 2026-08-27 22:27 UTCEG score recompute
  11. 2026-08-27 22:27 UTCGHSA enrichment
  12. 2026-08-25 13:48 UTCEPSS rescore
  13. 2026-08-25 04:07 UTCEG score recompute
  14. 2026-08-25 04:07 UTCGHSA enrichment
  15. 2026-08-24 05:14 UTCGHSA enrichment
  16. 2026-08-23 06:21 UTCGHSA enrichment
  17. 2026-08-22 07:21 UTCGHSA enrichment
  18. 2026-08-21 04:33 UTCGHSA enrichment
  19. 2026-08-20 04:45 UTCGHSA enrichment
  20. 2026-08-18 21:00 UTCGHSA enrichment
  21. 2026-08-17 17:14 UTCGHSA enrichment
  22. 2026-08-16 18:19 UTCGHSA enrichment
  23. 2026-08-15 19:26 UTCGHSA enrichment
  24. 2026-08-14 20:30 UTCGHSA enrichment
  25. 2026-08-13 21:34 UTCGHSA enrichment
Show 46 more
  1. 2026-08-12 22:41 UTCEG score recompute
  2. 2026-08-12 22:41 UTCGHSA enrichment
  3. 2026-08-11 23:48 UTCGHSA enrichment
  4. 2026-08-11 00:55 UTCGHSA enrichment
  5. 2026-08-10 02:02 UTCGHSA enrichment
  6. 2026-08-09 03:09 UTCGHSA enrichment
  7. 2026-08-08 04:16 UTCGHSA enrichment
  8. 2026-08-07 05:23 UTCGHSA enrichment
  9. 2026-08-06 06:26 UTCEG score recompute
  10. 2026-08-06 06:26 UTCGHSA enrichment
  11. 2026-08-05 19:17 UTCEPSS rescore
  12. 2026-08-05 07:33 UTCGHSA enrichment
  13. 2026-08-04 08:38 UTCGHSA enrichment
  14. 2026-08-03 07:55 UTCGHSA enrichment
  15. 2026-08-02 09:02 UTCGHSA enrichment
  16. 2026-08-01 10:08 UTCGHSA enrichment
  17. 2026-07-31 11:13 UTCGHSA enrichment
  18. 2026-07-30 12:17 UTCEG score recompute
  19. 2026-07-30 12:17 UTCGHSA enrichment
  20. 2026-07-29 12:52 UTCGHSA enrichment
  21. 2026-07-28 13:58 UTCGHSA enrichment
  22. 2026-07-27 12:12 UTCGHSA enrichment
  23. 2026-07-26 13:19 UTCEG score recompute
  24. 2026-07-26 13:19 UTCGHSA enrichment
  25. 2026-07-23 03:05 UTCEG score recompute
  26. 2026-07-16 23:46 UTCGHSA enrichment
  27. 2026-07-16 00:52 UTCGHSA enrichment
  28. 2026-07-15 01:59 UTCGHSA enrichment
  29. 2026-07-14 03:06 UTCGHSA enrichment
  30. 2026-07-13 04:13 UTCGHSA enrichment
  31. 2026-07-12 05:19 UTCGHSA enrichment
  32. 2026-07-11 06:26 UTCGHSA enrichment
  33. 2026-07-10 07:32 UTCGHSA enrichment
  34. 2026-07-09 08:38 UTCGHSA enrichment
  35. 2026-07-08 09:44 UTCGHSA enrichment
  36. 2026-07-07 10:51 UTCGHSA enrichment
  37. 2026-07-06 11:40 UTCGHSA enrichment
  38. 2026-07-05 12:46 UTCGHSA enrichment
  39. 2026-07-04 13:51 UTCGHSA enrichment
  40. 2026-07-03 14:57 UTCGHSA enrichment
  41. 2026-07-02 16:02 UTCGHSA enrichment
  42. 2026-07-01 17:08 UTCEG score recompute▲ 6.40
  43. 2026-07-01 17:08 UTCGHSA enrichment
  44. 2026-07-01 17:06 UTCNVD updateCVSS v3 → 6.4 · CVSS v4 → 6.4
  45. 2026-07-01 16:03 UTCEG score recompute
  46. 2026-07-01 16:03 UTCGHSA enrichment

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-12374?
CVE-2026-12374 is a medium vulnerability published on July 1, 2026. Improper certificate validation and a time-of-check time-of-use (TOCTOU) race condition in the PrivilegedHelperTool XPC service in Cato Client before v.5.13.1 on macOS allows a local authenticated attacker to escalate privileges to root via a self-signed certificate that bypasses the XPC caller…
When was CVE-2026-12374 disclosed?
CVE-2026-12374 was first published in the National Vulnerability Database on July 1, 2026, with the most recent update on July 2, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-12374 actively exploited?
CVE-2026-12374 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 99.9% of all scored CVEs.
What is the CVSS score of CVE-2026-12374?
CVE-2026-12374 has a CVSS v3 base score of 6.4 (NVD).
How do I remediate CVE-2026-12374?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-12374, 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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