CVE-2026-40953

MEDIUMNVD 4.44.4—
EchelonGraph scoreMEDIUM confidence

Score 4.4 from GitHub Security Advisory published 2026-07-15. NVD baseline CVSS 4.4; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Trending — 3 sources updated this week
4.4EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 4.4Exploit: None knownExposed: 0

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

CVE-2026-40953 is a heap overflow in the certificate parsing function of Secure Access clients prior to 14.55. Attackers with local access and administrator permissions can create a denial of service attack against the client over which they have control.

CVSS v3
4.4
EG Score
4.4(medium)
EG Risk
20(Track)
EG Risk 20/100SSVC: 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
Severity44% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
1%
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-2026-40953 | Absolute Security

https://www.absolute.com/platform/security-information/vulnerability-archive/cve-2026-40953

Vendor Advisories for CVE-2026-40953(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 15× in last 7d / 55× 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 03:46 UTCEG score recompute
  2. 2026-08-30 03:46 UTCGHSA enrichment
  3. 2026-08-30 01:22 UTCEPSS rescore
  4. 2026-08-28 21:41 UTCEPSS rescore
  5. 2026-08-27 22:13 UTCEG score recompute
  6. 2026-08-27 22:13 UTCGHSA enrichment
  7. 2026-08-27 14:25 UTCEPSS rescore
  8. 2026-08-26 23:05 UTCEG score recompute
  9. 2026-08-26 23:05 UTCGHSA enrichment
  10. 2026-08-26 14:46 UTCEPSS rescore
  11. 2026-08-25 19:03 UTCGHSA enrichment
  12. 2026-08-24 19:54 UTCEG score recompute
  13. 2026-08-24 19:54 UTCGHSA enrichment
  14. 2026-08-23 20:46 UTCEG score recompute
  15. 2026-08-23 20:46 UTCGHSA enrichment
  16. 2026-08-23 00:19 UTCEPSS rescore
  17. 2026-08-22 21:38 UTCGHSA enrichment
  18. 2026-08-21 22:30 UTCGHSA enrichment
  19. 2026-08-20 23:22 UTCGHSA enrichment
  20. 2026-08-20 00:13 UTCEG score recompute
  21. 2026-08-20 00:13 UTCGHSA enrichment
  22. 2026-08-19 17:03 UTCEPSS rescore
  23. 2026-08-18 19:59 UTCGHSA enrichment
  24. 2026-08-17 16:05 UTCGHSA enrichment
  25. 2026-08-16 16:57 UTCEG score recompute
Show 53 more
  1. 2026-08-16 16:57 UTCGHSA enrichment
  2. 2026-08-16 02:14 UTCEPSS rescore
  3. 2026-08-15 17:49 UTCEG score recompute
  4. 2026-08-15 17:49 UTCGHSA enrichment
  5. 2026-08-14 18:40 UTCGHSA enrichment
  6. 2026-08-13 19:32 UTCGHSA enrichment
  7. 2026-08-12 20:24 UTCGHSA enrichment
  8. 2026-08-11 21:16 UTCGHSA enrichment
  9. 2026-08-10 22:08 UTCGHSA enrichment
  10. 2026-08-09 23:00 UTCGHSA enrichment
  11. 2026-08-08 23:52 UTCEG score recompute
  12. 2026-08-08 23:52 UTCGHSA enrichment
  13. 2026-08-08 16:37 UTCEPSS rescore
  14. 2026-08-08 00:44 UTCEG score recompute
  15. 2026-08-08 00:44 UTCGHSA enrichment
  16. 2026-08-07 01:35 UTCEG score recompute
  17. 2026-08-07 01:35 UTCGHSA enrichment
  18. 2026-08-06 13:46 UTCEPSS rescore
  19. 2026-08-06 02:27 UTCEG score recompute
  20. 2026-08-06 02:27 UTCGHSA enrichment
  21. 2026-08-05 19:17 UTCEPSS rescore
  22. 2026-08-05 03:19 UTCEG score recompute
  23. 2026-08-05 03:19 UTCGHSA enrichment
  24. 2026-08-04 15:10 UTCEPSS rescore
  25. 2026-08-04 03:57 UTCGHSA enrichment
  26. 2026-08-03 04:49 UTCGHSA enrichment
  27. 2026-08-02 05:40 UTCEG score recompute
  28. 2026-08-02 05:40 UTCGHSA enrichment
  29. 2026-08-02 02:27 UTCEPSS rescore
  30. 2026-08-01 06:32 UTCGHSA enrichment
  31. 2026-07-31 07:18 UTCEG score recompute
  32. 2026-07-31 07:18 UTCGHSA enrichment
  33. 2026-07-30 16:28 UTCEPSS rescore
  34. 2026-07-30 08:08 UTCGHSA enrichment
  35. 2026-07-29 08:57 UTCGHSA enrichment
  36. 2026-07-28 09:48 UTCGHSA enrichment
  37. 2026-07-27 10:39 UTCEG score recompute
  38. 2026-07-27 10:39 UTCGHSA enrichment
  39. 2026-07-26 14:54 UTCEPSS rescore
  40. 2026-07-26 14:54 UTCEPSS rescore
  41. 2026-07-26 11:29 UTCEG score recompute
  42. 2026-07-26 11:29 UTCGHSA enrichment
  43. 2026-07-24 14:17 UTCEPSS rescore
  44. 2026-07-23 03:11 UTCEG score recompute
  45. 2026-07-22 14:08 UTCEPSS rescore
  46. 2026-07-16 18:53 UTCEG score recompute▼ 2.30
  47. 2026-07-16 18:53 UTCGHSA enrichment
  48. 2026-07-16 17:03 UTCEPSS rescore
  49. 2026-07-16 14:29 UTCNVD updateCVSS v3 → 4.4
  50. 2026-07-16 13:59 UTCMITRE cvelistV5CVSS v3 → 6.7
  51. 2026-07-16 03:00 UTCNVD updateCVSS v3 → 4.4
  52. 2026-07-15 19:45 UTCEG score recompute
  53. 2026-07-15 19:44 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-40953?
CVE-2026-40953 is a medium vulnerability published on July 15, 2026. CVE-2026-40953 is a heap overflow in the certificate parsing function of Secure Access clients prior to 14.55. Attackers with local access and administrator permissions can create a denial of service attack against the client over which they have control.
When was CVE-2026-40953 disclosed?
CVE-2026-40953 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-2026-40953 actively exploited?
CVE-2026-40953 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 99.2% of all scored CVEs.
What is the CVSS score of CVE-2026-40953?
CVE-2026-40953 has a CVSS v3 base score of 4.4 (NVD).
How do I remediate CVE-2026-40953?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-40953, 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-2026-40953

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