CVE-2026-38641

HIGHPre-NVD 7.57.5—
EchelonGraph scoreHIGH confidence

Score 7.5 from GitHub Security Advisory (severity: HIGH) published 2026-06-26. CISA-ADP (Vulnrichment) CVSS v3.1 baseline 7.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cisa-adp, epss, ghsa
Elevated
7.5
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 0%CVSS: 7.5Exploit: NoneExposed: 0

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

An issue in the DSO::mmap_and_copy function of relibc commit 61f42d allows attackers to cause a Denial of Service (DoS) via loading a crafted shared library.

CVSS v3
7.5
EG Score
7.5(high)
EG Risk
65(Attend)
EG Risk 65/100SSVC: Attend

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
Severity75% × 45%
Exploitation40% × 40%
Automatability100% × 15%
Action: Remediate soon — notable exploitation risk.
EPSS
36.4%
KEV
Not listed

Published

June 26, 2026

Last Modified

June 29, 2026

Advisory Details (4)

Auto-updated Jun 29, 2026
No patch confirmed yet.
generic

Reachable panic in `DSO::mmap_and_copy` when `dlopen` opens invalid binary (#263) · Issues · redox-os / relibc · GitLab

https://gitlab.redox-os.org/redox-os/relibc/-/work_items/263
generic

fix: improve error handling in DSO methods (!1046) · Merge requests · redox-os / relibc · GitLab

https://gitlab.redox-os.org/redox-os/relibc/-/merge_requests/1046
generic

Reachable panic in `DSO::mmap_and_copy` when `dlopen` opens invalid binary (#263) · Issues · redox-os / relibc · GitLab

https://gitlab.redox-os.org/redox-os/relibc/-/issues/263
generic

pocs/redox/CVE-2026-38641 at master · Marsman1996/pocs · GitHub

https://github.com/Marsman1996/pocs/tree/master/redox/CVE-2026-38641

Vendor Advisories for CVE-2026-38641(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 11× 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.

  1. 2026-07-24 14:17 UTCEPSS rescore
  2. 2026-07-24 14:17 UTCEPSS rescore
  3. 2026-07-23 14:18 UTCEPSS rescore
  4. 2026-07-23 14:18 UTCEPSS rescore
  5. 2026-07-23 03:10 UTCEG score recompute
  6. 2026-07-22 14:08 UTCEPSS rescore
  7. 2026-07-21 15:24 UTCEPSS rescore
  8. 2026-07-20 17:08 UTCEPSS rescore
  9. 2026-07-19 14:31 UTCEPSS rescore
  10. 2026-07-19 02:29 UTCEPSS rescore
  11. 2026-07-18 10:04 UTCEPSS rescore
  12. 2026-07-17 02:34 UTCGHSA enrichment
  13. 2026-07-16 17:03 UTCEPSS rescore
  14. 2026-07-16 13:44 UTCGHSA enrichment
  15. 2026-07-16 01:01 UTCGHSA enrichment
  16. 2026-07-15 16:57 UTCEPSS rescore
  17. 2026-07-15 16:57 UTCEPSS rescore
  18. 2026-07-15 12:19 UTCGHSA enrichment
  19. 2026-07-15 02:00 UTCEPSS rescore
  20. 2026-07-14 23:36 UTCGHSA enrichment
  21. 2026-07-14 10:30 UTCGHSA enrichment
  22. 2026-07-13 22:30 UTCEPSS rescore
  23. 2026-07-13 21:47 UTCGHSA enrichment
  24. 2026-07-13 09:01 UTCGHSA enrichment
  25. 2026-07-13 06:13 UTCEPSS rescore
Show 46 more
  1. 2026-07-13 06:13 UTCEPSS rescore
  2. 2026-07-12 20:19 UTCGHSA enrichment
  3. 2026-07-12 07:38 UTCGHSA enrichment
  4. 2026-07-12 05:46 UTCEPSS rescore
  5. 2026-07-11 18:57 UTCGHSA enrichment
  6. 2026-07-11 08:27 UTCEPSS rescore
  7. 2026-07-11 06:15 UTCGHSA enrichment
  8. 2026-07-10 17:31 UTCGHSA enrichment
  9. 2026-07-10 04:49 UTCGHSA enrichment
  10. 2026-07-09 19:10 UTCEPSS rescore
  11. 2026-07-09 16:06 UTCGHSA enrichment
  12. 2026-07-09 03:25 UTCGHSA enrichment
  13. 2026-07-08 15:15 UTCEPSS rescore
  14. 2026-07-08 14:44 UTCGHSA enrichment
  15. 2026-07-08 01:59 UTCGHSA enrichment
  16. 2026-07-07 13:46 UTCEPSS rescore
  17. 2026-07-07 13:18 UTCGHSA enrichment
  18. 2026-07-07 00:37 UTCGHSA enrichment
  19. 2026-07-06 16:27 UTCEPSS rescore
  20. 2026-07-06 16:27 UTCEPSS rescore
  21. 2026-07-06 11:55 UTCGHSA enrichment
  22. 2026-07-06 02:23 UTCEPSS rescore
  23. 2026-07-06 02:23 UTCEPSS rescore
  24. 2026-07-05 23:10 UTCGHSA enrichment
  25. 2026-07-05 10:22 UTCGHSA enrichment
  26. 2026-07-05 02:30 UTCEPSS rescore
  27. 2026-07-04 21:40 UTCGHSA enrichment
  28. 2026-07-04 08:59 UTCGHSA enrichment
  29. 2026-07-04 06:31 UTCEPSS rescore
  30. 2026-07-03 20:17 UTCGHSA enrichment
  31. 2026-07-03 07:36 UTCGHSA enrichment
  32. 2026-07-02 18:55 UTCGHSA enrichment
  33. 2026-07-02 06:13 UTCGHSA enrichment
  34. 2026-07-01 17:30 UTCGHSA enrichment
  35. 2026-07-01 15:06 UTCEPSS rescore
  36. 2026-07-01 04:47 UTCGHSA enrichment
  37. 2026-06-30 23:22 UTCEPSS rescore
  38. 2026-06-30 16:05 UTCGHSA enrichment
  39. 2026-06-30 03:24 UTCEG score recompute▲ 7.50
  40. 2026-06-30 03:24 UTCGHSA enrichment
  41. 2026-06-29 14:52 UTCMITRE cvelistV5CVSS v3 → 7.5 · severity → HIGH
  42. 2026-06-29 14:06 UTCEPSS rescore
  43. 2026-06-28 14:07 UTCEPSS rescore
  44. 2026-06-28 04:56 UTCEPSS rescore
  45. 2026-06-26 21:37 UTCEG score recompute
  46. 2026-06-26 21:37 UTCGHSA enrichment

Frequently asked(5)

What is CVE-2026-38641?
CVE-2026-38641 is a high vulnerability published on June 26, 2026. An issue in the DSO::mmapandcopy function of relibc commit 61f42d allows attackers to cause a Denial of Service (DoS) via loading a crafted shared library.
When was CVE-2026-38641 disclosed?
CVE-2026-38641 was first published in the National Vulnerability Database on June 26, 2026, with the most recent update on June 29, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-38641 actively exploited?
CVE-2026-38641 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 36.4% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-38641?
CVE-2026-38641 has a CVSS v3.1 base score of 7.5 (CISA-ADP / Vulnrichment enrichment; NVD's own analysis pending).
How do I remediate CVE-2026-38641?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-38641, 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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