CVE-2026-16459

MEDIUMPre-NVD 5.95.9—
EchelonGraph scoreMEDIUM confidence

This medium-severity CVE scores 5.9 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: <0.1% (below the 1st percentile of EPSS-scored CVEs). 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
5.9EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: <0.1%CVSS: 5.9Exploit: None knownExposed services: Not assessed

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

Padding oracle attack vulnerability in Oberon microsystem AG’s Oberon PSA Crypto library in all versions since 1.0.0 and prior to 2.1.1 allows an attacker to recover plaintexts via timing measurements of RSA PKCS#1 v1.5 decrypt operations.

CVSS v3
5.9
EG Score
5.9MEDIUMmedium confidence
EG Risk
27
EG Risk 27/100CISA 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
Severity59% × 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
below the 1st
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 13, 2026

Last Modified

August 26, 2026

Advisory Details (1)

Auto-updated Aug 13, 2026
No patch confirmed yet.
generic

CVE-2026-16459 - Oberon microsystems

https://www.oberon.ch/security-advisories/cve-2026-16459/

Vendor Advisories for CVE-2026-16459(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 15× in last 7d / 53× 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. 2026-10-04 23:21 UTCEPSS rescore
  2. 2026-10-04 22:25 UTCGHSA enrichment
  3. 2026-10-03 19:54 UTCEG score recompute
  4. 2026-10-03 19:54 UTCGHSA enrichment
  5. 2026-10-03 14:25 UTCEPSS rescore
  6. 2026-10-02 08:06 UTCEG score recompute
  7. 2026-10-02 08:06 UTCGHSA enrichment
  8. 2026-10-01 19:49 UTCEPSS rescore
  9. 2026-09-30 21:51 UTCEG score recompute
  10. 2026-09-30 21:51 UTCGHSA enrichment
  11. 2026-09-30 15:02 UTCEPSS rescore
  12. 2026-09-29 15:20 UTCEPSS rescore
  13. 2026-09-29 08:19 UTCEG score recompute
  14. 2026-09-29 08:19 UTCGHSA enrichment
  15. 2026-09-28 13:51 UTCEPSS rescore
  16. 2026-09-28 09:00 UTCEG score recompute
  17. 2026-09-28 09:00 UTCGHSA enrichment
  18. 2026-09-27 13:47 UTCEPSS rescore
  19. 2026-09-27 09:49 UTCEG score recompute
  20. 2026-09-27 09:49 UTCGHSA enrichment
  21. 2026-09-26 15:58 UTCEPSS rescore
  22. 2026-09-25 03:37 UTCEG score recompute
  23. 2026-09-25 03:37 UTCGHSA enrichment
  24. 2026-09-23 20:52 UTCEG score recompute
  25. 2026-09-23 20:52 UTCGHSA enrichment
Show 69 more
  1. 2026-09-22 21:03 UTCGHSA enrichment
  2. 2026-09-21 21:40 UTCGHSA enrichment
  3. 2026-09-20 22:30 UTCGHSA enrichment
  4. 2026-09-19 23:11 UTCEG score recompute
  5. 2026-09-19 23:11 UTCGHSA enrichment
  6. 2026-09-18 23:41 UTCEG score recompute
  7. 2026-09-18 23:41 UTCGHSA enrichment
  8. 2026-09-18 19:27 UTCEPSS rescore
  9. 2026-09-18 00:31 UTCEG score recompute
  10. 2026-09-18 00:31 UTCGHSA enrichment
  11. 2026-09-17 00:21 UTCEG score recompute
  12. 2026-09-17 00:21 UTCGHSA enrichment
  13. 2026-09-16 14:07 UTCEPSS rescore
  14. 2026-09-16 01:11 UTCGHSA enrichment
  15. 2026-09-15 00:22 UTCGHSA enrichment
  16. 2026-09-14 00:59 UTCGHSA enrichment
  17. 2026-09-13 01:50 UTCGHSA enrichment
  18. 2026-09-12 02:40 UTCEG score recompute
  19. 2026-09-12 02:40 UTCGHSA enrichment
  20. 2026-09-11 14:52 UTCEPSS rescore
  21. 2026-09-11 03:29 UTCEG score recompute
  22. 2026-09-11 03:29 UTCGHSA enrichment
  23. 2026-09-10 09:34 UTCEPSS rescore
  24. 2026-09-10 04:18 UTCGHSA enrichment
  25. 2026-09-09 05:08 UTCGHSA enrichment
  26. 2026-09-08 04:58 UTCGHSA enrichment
  27. 2026-09-07 05:48 UTCGHSA enrichment
  28. 2026-09-06 06:21 UTCGHSA enrichment
  29. 2026-09-05 07:02 UTCEG score recompute
  30. 2026-09-05 07:02 UTCGHSA enrichment
  31. 2026-09-04 07:52 UTCGHSA enrichment
  32. 2026-09-03 05:54 UTCGHSA enrichment
  33. 2026-09-02 06:16 UTCEG score recompute
  34. 2026-09-02 06:16 UTCGHSA enrichment
  35. 2026-09-01 06:19 UTCGHSA enrichment
  36. 2026-08-31 06:44 UTCGHSA enrichment
  37. 2026-08-30 07:34 UTCGHSA enrichment
  38. 2026-08-29 08:24 UTCGHSA enrichment
  39. 2026-08-27 16:16 UTCGHSA enrichment
  40. 2026-08-26 16:55 UTCGHSA enrichment
  41. 2026-08-26 04:39 UTCEG score recompute
  42. 2026-08-26 04:39 UTCGHSA enrichment
  43. 2026-08-25 13:48 UTCEPSS rescore
  44. 2026-08-25 05:26 UTCEG score recompute
  45. 2026-08-25 05:26 UTCGHSA enrichment
  46. 2026-08-24 06:16 UTCGHSA enrichment
  47. 2026-08-23 07:06 UTCGHSA enrichment
  48. 2026-08-22 07:56 UTCEG score recompute
  49. 2026-08-22 07:56 UTCGHSA enrichment
  50. 2026-08-21 23:49 UTCEPSS rescore
  51. 2026-08-21 08:46 UTCEG score recompute
  52. 2026-08-21 08:46 UTCGHSA enrichment
  53. 2026-08-20 22:55 UTCEPSS rescore
  54. 2026-08-20 09:36 UTCGHSA enrichment
  55. 2026-08-19 10:26 UTCGHSA enrichment
  56. 2026-08-18 11:17 UTCGHSA enrichment
  57. 2026-08-17 12:07 UTCGHSA enrichment
  58. 2026-08-16 12:56 UTCGHSA enrichment
  59. 2026-08-15 13:46 UTCGHSA enrichment
  60. 2026-08-14 14:36 UTCEG score recompute
  61. 2026-08-14 14:36 UTCGHSA enrichment
  62. 2026-08-13 22:00 UTCEPSS rescore
  63. 2026-08-13 15:26 UTCEG score recompute
  64. 2026-08-13 15:26 UTCGHSA enrichment
  65. 2026-08-13 15:14 UTCEG score recompute
  66. 2026-08-13 15:14 UTCGHSA enrichment
  67. 2026-08-13 09:27 UTCEG score recompute
  68. 2026-08-13 08:51 UTCEG score recompute
  69. 2026-08-13 08:51 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-16459?
CVE-2026-16459 is a medium vulnerability published on August 13, 2026. Padding oracle attack vulnerability in Oberon microsystem AG’s Oberon PSA Crypto library in all versions since 1.0.0 and prior to 2.1.1 allows an attacker to recover plaintexts via timing measurements of RSA PKCS#1 v1.5 decrypt operations.
When was CVE-2026-16459 disclosed?
CVE-2026-16459 was first published on August 13, 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-2026-16459 actively exploited?
CVE-2026-16459 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a <0.1% probability of exploitation in the next 30 days (below the 1st percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-16459?
CVE-2026-16459 has a CVSS base score of 5.9 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-16459?
No fix for CVE-2026-16459 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-2026-16459 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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