CVE-2026-58307

MEDIUMPre-NVD 6.16.1—
EchelonGraph scoreMEDIUM confidence

Score 6.1 from GitHub Security Advisory published 2026-07-09. A secondary CVSS source baseline 6.1; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
6.1EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0.2%CVSS: 6.1Exploit: None knownExposed services: Not assessed

An upstream fix is merged but not yet released — mitigate (WAF / firewall / segmentation) until the release ships, then apply it.

Out-of-bounds read, Reachable assertion vulnerability in Samsung Open Source Escargot allows Overread Buffers, Input Data Manipulation.

This issue affects Escargot: before 2dee22f5c7b8bf31cb7252d7731fae8c07f2842c.

CVSS v3
6.1
EG Score
6.1MEDIUMmedium confidence
EG Risk
28
EG Risk 28/100CISA 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
Severity61% × 45%
Exploitation0% × 40%
Automatability0% × 15%
CISA SSVC: Track at every mission impact level.
Action: An upstream fix is merged but not yet in a tagged release. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines until it ships, then apply the release.
EPSS PROB
0.2%
EPSS %ILE
3rd
KEV
Not listed

CISA SSVCTrack at every mission impact level.

An upstream fix is merged but not yet in a tagged release. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines until it ships, then apply the release.

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

July 9, 2026

Last Modified

July 9, 2026

Advisory Details (2)

Auto-updated Jul 9, 2026
Upstream fix merged — awaiting tagged release. Sources: github_pr.
github_pr

Fix issue 1577

Fix merged in Samsung/escargot PR #1586 on 2026-06-17 — awaiting tagged release

https://github.com/Samsung/escargot/pull/1586
generic

Various reports · Issue #1577 · Samsung/escargot · GitHub

https://github.com/Samsung/escargot/issues/1577

Vendor Advisories for CVE-2026-58307(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 7× in last 7d / 41× 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 171 total refreshes for this CVE.

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

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Frequently asked(5)

What is CVE-2026-58307?
CVE-2026-58307 is a medium vulnerability published on July 9, 2026. Out-of-bounds read, Reachable assertion vulnerability in Samsung Open Source Escargot allows Overread Buffers, Input Data Manipulation. This issue affects Escargot: before 2dee22f5c7b8bf31cb7252d7731fae8c07f2842c.
When was CVE-2026-58307 disclosed?
CVE-2026-58307 was first published on July 9, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-58307 actively exploited?
CVE-2026-58307 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.2% probability of exploitation in the next 30 days (3rd percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-58307?
CVE-2026-58307 has a CVSS base score of 6.1 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-58307?
An upstream fix for CVE-2026-58307 has been merged but is not yet in a tagged release. Until it ships, restrict network exposure of the affected system or apply the vendor's mitigation, then update to the release that contains the fix. The vendor advisories EchelonGraph has for CVE-2026-58307 are linked in the Vendor Advisories panel on this page.

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