CVE-2026-20878

HIGHPre-NVD 7.17.1—
EchelonGraph scoreMEDIUM confidence

This high-severity CVE scores 7.1 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.2%, top 87% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: epss, secondary
Trending — 3 sources updated this week
7.1EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 7.1Exploit: None knownExposed: 0

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

Null pointer dereference for some Intel(R) PROSet/Wireless WiFi Software for Windows within Ring 2: Device Drivers may allow a denial of service. Network adversary with an unauthenticated user combined with a low complexity attack may enable denial of service. This result may potentially occur via adjacent access when attack requirements are not present without special internal knowledge and requires no user interaction. The potential vulnerability may impact the confidentiality (none), integrity (none) and availability (high) of the vulnerable system, resulting in subsequent system confidentiality (none), integrity (none) and availability (low) impacts.

CVSS v3
7.1
EG Score
7.1(medium)
EG Risk
32(Track)
EG Risk 32/100SSVC: 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
Severity71% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
13%
KEV
Not listed

Published

August 11, 2026

Last Modified

August 12, 2026

Advisory Details (1)

Auto-updated Aug 11, 2026
No patch confirmed yet.
generic

INTEL-SA-01422

https://intel.com/content/www/us/en/security-center/advisory/intel-sa-01422.html

Vendor Advisories for CVE-2026-20878(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 26× 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. 2026-08-21 01:40 UTCGHSA enrichment
  2. 2026-08-20 14:16 UTCGHSA enrichment
  3. 2026-08-20 02:02 UTCEG score recompute
  4. 2026-08-20 02:02 UTCGHSA enrichment
  5. 2026-08-19 17:03 UTCEPSS rescore
  6. 2026-08-19 14:36 UTCGHSA enrichment
  7. 2026-08-19 02:56 UTCGHSA enrichment
  8. 2026-08-18 15:16 UTCEG score recompute
  9. 2026-08-18 15:16 UTCGHSA enrichment
  10. 2026-08-18 13:48 UTCEPSS rescore
  11. 2026-08-18 03:28 UTCGHSA enrichment
  12. 2026-08-17 15:55 UTCEG score recompute
  13. 2026-08-17 15:55 UTCGHSA enrichment
  14. 2026-08-17 13:47 UTCEPSS rescore
  15. 2026-08-17 04:30 UTCGHSA enrichment
  16. 2026-08-16 17:05 UTCEG score recompute
  17. 2026-08-16 17:05 UTCGHSA enrichment
  18. 2026-08-16 14:56 UTCEPSS rescore
  19. 2026-08-16 05:39 UTCEG score recompute
  20. 2026-08-16 05:39 UTCGHSA enrichment
  21. 2026-08-16 02:14 UTCEPSS rescore
  22. 2026-08-15 18:15 UTCGHSA enrichment
  23. 2026-08-15 06:50 UTCEG score recompute
  24. 2026-08-15 06:50 UTCGHSA enrichment
  25. 2026-08-15 01:30 UTCEPSS rescore
Show 16 more
  1. 2026-08-14 18:41 UTCGHSA enrichment
  2. 2026-08-14 07:17 UTCEG score recompute
  3. 2026-08-14 07:17 UTCGHSA enrichment
  4. 2026-08-13 22:00 UTCEPSS rescore
  5. 2026-08-13 19:52 UTCGHSA enrichment
  6. 2026-08-13 08:27 UTCGHSA enrichment
  7. 2026-08-12 21:02 UTCGHSA enrichment
  8. 2026-08-12 16:35 UTCEG score recompute
  9. 2026-08-12 16:35 UTCGHSA enrichment
  10. 2026-08-12 16:03 UTCEG score recompute
  11. 2026-08-12 16:03 UTCGHSA enrichment
  12. 2026-08-12 13:50 UTCEPSS rescore
  13. 2026-08-12 05:09 UTCGHSA enrichment
  14. 2026-08-11 17:44 UTCEG score recompute
  15. 2026-08-11 16:46 UTCEG score recompute
  16. 2026-08-11 16:45 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-20878?
CVE-2026-20878 is a high vulnerability published on August 11, 2026. Null pointer dereference for some Intel(R) PROSet/Wireless WiFi Software for Windows within Ring 2: Device Drivers may allow a denial of service. Network adversary with an unauthenticated user combined with a low complexity attack may enable denial of service. This result may potentially occur via…
When was CVE-2026-20878 disclosed?
CVE-2026-20878 was first published in the National Vulnerability Database on August 11, 2026, with the most recent update on August 12, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-20878 actively exploited?
CVE-2026-20878 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 87.3% of all scored CVEs.
What is the CVSS score of CVE-2026-20878?
CVE-2026-20878 has a CVSS v3 base score of 7.1 (NVD).
How do I remediate CVE-2026-20878?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-20878, 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-2026-20878

Explore →

Is Your Infrastructure Affected by CVE-2026-20878?

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

Start Free Scan →Browse All CVEs