CVE-2026-58084

MEDIUMPre-NVD 5.55.5—
EchelonGraph scoreMEDIUM confidence

Score 5.5 from GitHub Security Advisory published 2026-08-19. CISA-ADP (Vulnrichment) CVSS v3.1 baseline 5.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cisa-adp, epss, ghsa
Trending — 3 sources updated this week
5.5EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0.1%CVSS: 5.5Exploit: None knownExposed services: Not assessed

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

To retrieve the previous timer value, the kernel calls realtimer_gettime(), which obtains the current time for the timer's clock. For a timer using CLOCK_TAI this can fail when no TAI offset has been configured, but the error return was not checked, so the uninitialized output buffer was copied to userspace.

An unprivileged local user can obtain uninitialized kernel stack memory by creating a POSIX timer with CLOCK_TAI and calling timer_settime(2), potentially disclosing sensitive kernel data.

CVSS v3
5.5
EG Score
5.5MEDIUMmedium confidence
EG Risk
25
EG Risk 25/100CISA 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
Severity55% × 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 19, 2026

Last Modified

August 31, 2026

Advisory Details (1)

Auto-updated Aug 26, 2026
No patch confirmed yet.

Vendor Advisories for CVE-2026-58084(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 21× in last 7d / 71× 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 112 total refreshes for this CVE.

  1. 2026-10-05 17:43 UTCEPSS rescore
  2. 2026-10-05 05:17 UTCEG score recompute
  3. 2026-10-05 05:17 UTCGHSA enrichment
  4. 2026-10-04 23:22 UTCEPSS rescore
  5. 2026-10-04 06:11 UTCEG score recompute
  6. 2026-10-04 06:11 UTCGHSA enrichment
  7. 2026-10-03 14:26 UTCEPSS rescore
  8. 2026-10-03 07:14 UTCEG score recompute
  9. 2026-10-03 07:14 UTCGHSA enrichment
  10. 2026-10-02 17:56 UTCEPSS rescore
  11. 2026-10-02 06:52 UTCEG score recompute
  12. 2026-10-02 06:52 UTCGHSA enrichment
  13. 2026-10-01 19:50 UTCEPSS rescore
  14. 2026-10-01 07:49 UTCEG score recompute
  15. 2026-10-01 07:49 UTCGHSA enrichment
  16. 2026-09-30 15:03 UTCEPSS rescore
  17. 2026-09-30 08:52 UTCEG score recompute
  18. 2026-09-30 08:52 UTCGHSA enrichment
  19. 2026-09-29 15:22 UTCEPSS rescore
  20. 2026-09-29 05:06 UTCEG score recompute
  21. 2026-09-29 05:06 UTCGHSA enrichment
  22. 2026-09-28 13:51 UTCEPSS rescore
  23. 2026-09-28 06:09 UTCEG score recompute
  24. 2026-09-28 06:09 UTCGHSA enrichment
  25. 2026-09-27 13:48 UTCEPSS rescore
Show 75 more
  1. 2026-09-27 07:13 UTCEG score recompute
  2. 2026-09-27 07:13 UTCGHSA enrichment
  3. 2026-09-26 15:59 UTCEPSS rescore
  4. 2026-09-24 19:51 UTCEG score recompute
  5. 2026-09-24 19:51 UTCGHSA enrichment
  6. 2026-09-24 14:04 UTCEPSS rescore
  7. 2026-09-23 20:11 UTCGHSA enrichment
  8. 2026-09-22 19:58 UTCEG score recompute
  9. 2026-09-22 19:58 UTCGHSA enrichment
  10. 2026-09-21 18:37 UTCGHSA enrichment
  11. 2026-09-20 19:40 UTCGHSA enrichment
  12. 2026-09-19 20:43 UTCGHSA enrichment
  13. 2026-09-18 21:46 UTCEG score recompute
  14. 2026-09-18 21:46 UTCGHSA enrichment
  15. 2026-09-18 19:28 UTCEPSS rescore
  16. 2026-09-17 21:34 UTCEG score recompute
  17. 2026-09-17 21:34 UTCGHSA enrichment
  18. 2026-09-17 19:31 UTCEPSS rescore
  19. 2026-09-16 20:08 UTCEG score recompute
  20. 2026-09-16 20:08 UTCGHSA enrichment
  21. 2026-09-16 14:08 UTCEPSS rescore
  22. 2026-09-15 19:30 UTCEG score recompute
  23. 2026-09-15 19:30 UTCGHSA enrichment
  24. 2026-09-15 03:11 UTCEPSS rescore
  25. 2026-09-14 20:33 UTCGHSA enrichment
  26. 2026-09-13 21:36 UTCEG score recompute
  27. 2026-09-13 21:36 UTCGHSA enrichment
  28. 2026-09-13 16:47 UTCEPSS rescore
  29. 2026-09-12 22:39 UTCEG score recompute
  30. 2026-09-12 22:39 UTCGHSA enrichment
  31. 2026-09-11 23:40 UTCEG score recompute
  32. 2026-09-11 23:40 UTCGHSA enrichment
  33. 2026-09-11 14:53 UTCEPSS rescore
  34. 2026-09-11 00:41 UTCEG score recompute
  35. 2026-09-11 00:41 UTCGHSA enrichment
  36. 2026-09-10 09:35 UTCEPSS rescore
  37. 2026-09-10 01:44 UTCGHSA enrichment
  38. 2026-09-09 02:43 UTCEG score recompute
  39. 2026-09-09 02:43 UTCGHSA enrichment
  40. 2026-09-08 22:01 UTCEPSS rescore
  41. 2026-09-07 16:01 UTCEPSS rescore
  42. 2026-09-07 15:45 UTCEG score recompute
  43. 2026-09-07 15:45 UTCGHSA enrichment
  44. 2026-09-06 13:47 UTCEPSS rescore
  45. 2026-09-06 13:02 UTCEG score recompute
  46. 2026-09-06 13:02 UTCGHSA enrichment
  47. 2026-09-05 14:04 UTCGHSA enrichment
  48. 2026-09-04 15:04 UTCEG score recompute
  49. 2026-09-04 15:04 UTCGHSA enrichment
  50. 2026-09-04 05:07 UTCEPSS rescore
  51. 2026-09-03 16:05 UTCGHSA enrichment
  52. 2026-09-02 17:08 UTCEG score recompute
  53. 2026-09-02 17:08 UTCGHSA enrichment
  54. 2026-09-02 14:12 UTCEPSS rescore
  55. 2026-09-01 18:06 UTCEG score recompute
  56. 2026-09-01 18:06 UTCGHSA enrichment
  57. 2026-09-01 13:54 UTCEPSS rescore
  58. 2026-09-01 04:40 UTCEPSS rescore
  59. 2026-08-31 18:58 UTCGHSA enrichment
  60. 2026-08-31 00:24 UTCEG score recompute
  61. 2026-08-31 00:24 UTCGHSA enrichment
  62. 2026-08-30 19:17 UTCEPSS rescore
  63. 2026-08-30 01:27 UTCEG score recompute
  64. 2026-08-30 01:27 UTCGHSA enrichment
  65. 2026-08-30 01:22 UTCEPSS rescore
  66. 2026-08-29 02:30 UTCEG score recompute
  67. 2026-08-29 02:30 UTCGHSA enrichment
  68. 2026-08-28 21:42 UTCEPSS rescore
  69. 2026-08-27 19:39 UTCEG score recompute
  70. 2026-08-27 19:39 UTCGHSA enrichment
  71. 2026-08-27 14:25 UTCEPSS rescore
  72. 2026-08-26 20:42 UTCGHSA enrichment
  73. 2026-08-26 20:07 UTCEG score recompute▲ 5.50
  74. 2026-08-26 20:07 UTCGHSA enrichment
  75. 2026-08-26 20:06 UTCMITRE cvelistV5CVSS v3 → 5.5 · severity → MEDIUM

Frequently asked(5)

What is CVE-2026-58084?
CVE-2026-58084 is a medium vulnerability published on August 19, 2026. To retrieve the previous timer value, the kernel calls realtimergettime(), which obtains the current time for the timer's clock. For a timer using CLOCKTAI this can fail when no TAI offset has been configured, but the error return was not checked, so the uninitialized output buffer was copied to…
When was CVE-2026-58084 disclosed?
CVE-2026-58084 was first published on August 19, 2026, with the most recent update on August 31, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-58084 actively exploited?
CVE-2026-58084 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-2026-58084?
CVE-2026-58084 has a CVSS v3.1 base score of 5.5 (CISA-ADP / Vulnrichment enrichment; NVD's own analysis pending).
How do I remediate CVE-2026-58084?
No fix for CVE-2026-58084 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-2026-58084 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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