CVE-2026-38636

HIGHPre-NVD 7.57.5—
EchelonGraph scoreHIGH confidence

Score 7.5 from GitHub Security Advisory (severity: HIGH) published 2026-08-28. CISA-ADP (Vulnrichment) CVSS v3.1 baseline 7.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cisa-adp, ghsa
Trending — 5 sources updated this weekElevated
7.5EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 7.5Exploit: Elevated riskExposed: 0

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

An issue in the seekdir() function (/dirent/mod.rs) of relibc commit 61f42d allows attackers to cause a Denial of Service (DoS) via a crafted input.

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 PROB
0%
EPSS %ILE
37%
KEV
Not listed

Published

August 28, 2026

Last Modified

August 28, 2026

Advisory Details (4)

Auto-updated Aug 28, 2026
No patch confirmed yet.
generic

Reachable expect panic in `seekdir` (#260) · Issues · redox-os / relibc · GitLab

https://gitlab.redox-os.org/redox-os/relibc/-/work_items/260
generic

fix: handle negative offset in `seekdir` (!980) · Merge requests · redox-os / relibc · GitLab

https://gitlab.redox-os.org/redox-os/relibc/-/merge_requests/980
generic

Reachable expect panic in `seekdir` (#260) · Issues · redox-os / relibc · GitLab

https://gitlab.redox-os.org/redox-os/relibc/-/issues/260
generic

pocs/redox/CVE-2026-38636 at master · Marsman1996/pocs · GitHub

https://github.com/Marsman1996/pocs/tree/master/redox/CVE-2026-38636

Vendor Advisories for CVE-2026-38636(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 12× in last 7d / 12× 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 01:22 UTCEPSS rescore
  2. 2026-08-29 21:58 UTCGHSA enrichment
  3. 2026-08-29 10:23 UTCEG score recompute
  4. 2026-08-29 10:23 UTCGHSA enrichment
  5. 2026-08-28 22:48 UTCEG score recompute
  6. 2026-08-28 22:48 UTCGHSA enrichment
  7. 2026-08-28 22:03 UTCEG score recompute▲ 7.50
  8. 2026-08-28 22:03 UTCGHSA enrichment
  9. 2026-08-28 21:59 UTCMITRE cvelistV5CVSS v3 → 7.5 · severity → HIGH
  10. 2026-08-28 16:29 UTCNVD update
  11. 2026-08-28 15:31 UTCEG score recompute
  12. 2026-08-28 15:25 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-38636?
CVE-2026-38636 is a high vulnerability published on August 28, 2026. An issue in the seekdir() function (/dirent/mod.rs) of relibc commit 61f42d allows attackers to cause a Denial of Service (DoS) via a crafted input.
When was CVE-2026-38636 disclosed?
CVE-2026-38636 was first published in the National Vulnerability Database on August 28, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-38636 actively exploited?
CVE-2026-38636 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 62.9% of all scored CVEs.
What is the CVSS score of CVE-2026-38636?
CVE-2026-38636 has a CVSS v3.1 base score of 7.5 (CISA-ADP / Vulnrichment enrichment; NVD's own analysis pending).
How do I remediate CVE-2026-38636?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-38636, 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-2026-38636

Explore →

Is Your Infrastructure Affected by CVE-2026-38636?

EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.

Start Free Scan →Browse All CVEs