CVE-2026-20508

MEDIUMPre-NVD 6.76.7—
EchelonGraph scoreHIGH confidence

Score 6.7 from GitHub Security Advisory published 2026-09-07. CISA-ADP (Vulnrichment) CVSS v3.1 baseline 6.7; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cisa-adp, epss, ghsa
Trending — 3 sources updated this week
6.7EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 6.7Exploit: None knownExposed: 0

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

In Power HAL, there is a possible escalation of privilege due to type confusion. This could lead to local escalation of privilege if a malicious actor has already obtained the System privilege. User interaction is not needed for exploitation. Patch ID: ALPS11165543; Issue ID: MSV-9012.

CVSS v3
6.7
EG Score
6.7(high)
EG Risk
30(Track)
EG Risk 30/100SSVC: Track

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
Severity67% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
2%
KEV
Not listed

Published

September 7, 2026

Last Modified

September 8, 2026

Advisory Details (1)

Auto-updated Sep 7, 2026
⚠️ Active exploitation confirmed. No patch confirmed yet.
generic🔴 Active Exploitation

September 2026 MediaTek Security Bulletin

https://www.mediatek.com/product-security-bulletin/September-2026

Vendor Advisories for CVE-2026-20508(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 18× 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.

  1. 2026-09-19 19:46 UTCGHSA enrichment
  2. 2026-09-18 21:51 UTCEG score recompute
  3. 2026-09-18 21:51 UTCGHSA enrichment
  4. 2026-09-18 19:27 UTCEPSS rescore
  5. 2026-09-17 23:56 UTCEG score recompute
  6. 2026-09-17 23:56 UTCGHSA enrichment
  7. 2026-09-17 01:23 UTCEG score recompute
  8. 2026-09-17 01:23 UTCGHSA enrichment
  9. 2026-09-16 14:07 UTCEPSS rescore
  10. 2026-09-16 05:15 UTCEPSS rescore
  11. 2026-09-16 03:28 UTCGHSA enrichment
  12. 2026-09-15 05:33 UTCEG score recompute
  13. 2026-09-15 05:33 UTCGHSA enrichment
  14. 2026-09-14 07:25 UTCEG score recompute
  15. 2026-09-14 07:25 UTCGHSA enrichment
  16. 2026-09-13 16:47 UTCEPSS rescore
  17. 2026-09-13 09:30 UTCEG score recompute
  18. 2026-09-13 09:30 UTCGHSA enrichment
  19. 2026-09-12 15:01 UTCEPSS rescore
  20. 2026-09-12 11:34 UTCEG score recompute
  21. 2026-09-12 11:34 UTCGHSA enrichment
  22. 2026-09-11 14:52 UTCEPSS rescore
  23. 2026-09-11 13:39 UTCEG score recompute
  24. 2026-09-11 13:39 UTCGHSA enrichment
  25. 2026-09-10 15:44 UTCEG score recompute
Show 16 more
  1. 2026-09-10 15:44 UTCGHSA enrichment
  2. 2026-09-10 09:34 UTCEPSS rescore
  3. 2026-09-09 17:49 UTCEG score recompute
  4. 2026-09-09 17:49 UTCGHSA enrichment
  5. 2026-09-08 22:00 UTCEPSS rescore
  6. 2026-09-08 19:54 UTCGHSA enrichment
  7. 2026-09-08 04:19 UTCEG score recompute
  8. 2026-09-08 04:19 UTCGHSA enrichment
  9. 2026-09-07 16:01 UTCEPSS rescore
  10. 2026-09-07 11:23 UTCGHSA enrichment
  11. 2026-09-07 10:45 UTCEG score recompute▲ 6.70
  12. 2026-09-07 10:45 UTCGHSA enrichment
  13. 2026-09-07 10:41 UTCMITRE cvelistV5CVSS v3 → 6.7 · severity → MEDIUM
  14. 2026-09-07 02:29 UTCNVD update
  15. 2026-09-07 02:04 UTCEG score recompute
  16. 2026-09-07 02:01 UTCMITRE cvelistV5first tracked

Frequently asked(5)

What is CVE-2026-20508?
CVE-2026-20508 is a medium vulnerability published on September 7, 2026. In Power HAL, there is a possible escalation of privilege due to type confusion. This could lead to local escalation of privilege if a malicious actor has already obtained the System privilege. User interaction is not needed for exploitation. Patch ID: ALPS11165543; Issue ID: MSV-9012.
When was CVE-2026-20508 disclosed?
CVE-2026-20508 was first published in the National Vulnerability Database on September 7, 2026, with the most recent update on September 8, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-20508 actively exploited?
CVE-2026-20508 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 98.3% of all scored CVEs.
What is the CVSS score of CVE-2026-20508?
CVE-2026-20508 has a CVSS v3.1 base score of 6.7 (CISA-ADP / Vulnrichment enrichment; NVD's own analysis pending).
How do I remediate CVE-2026-20508?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-20508, 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-2026-20508

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