CVE-2023-31308

LOWPre-NVD 3.33.3—
EchelonGraph scoreHIGH confidence

Score 3.3 from GitHub Security Advisory (severity: LOW) published 2026-08-31. a secondary CVSS source baseline 3.3; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this week
3.3EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 3.3Exploit: None knownExposed: 0

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

A malicious virtual function can invoke the certain command handlers in the SMU, causing a denial of service due to out-of-bounds memory read.

CVSS v3
3.3
EG Score
3.3(high)
EG Risk
15(Track)
EG Risk 15/100SSVC: 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
Severity33% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
1%
KEV
Not listed

Published

August 31, 2026

Last Modified

September 3, 2026

References (1)

Vendor Advisories for CVE-2023-31308(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 5× in last 7d / 25× 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. 2026-09-16 18:44 UTCEG score recompute
  2. 2026-09-16 18:44 UTCGHSA enrichment
  3. 2026-09-16 14:05 UTCEPSS rescore
  4. 2026-09-13 10:46 UTCEG score recompute
  5. 2026-09-13 10:46 UTCGHSA enrichment
  6. 2026-09-12 14:58 UTCEPSS rescore
  7. 2026-09-11 14:50 UTCEPSS rescore
  8. 2026-09-11 09:34 UTCEPSS rescore
  9. 2026-09-10 04:50 UTCEG score recompute
  10. 2026-09-10 04:50 UTCGHSA enrichment
  11. 2026-09-08 21:57 UTCEPSS rescore
  12. 2026-09-06 22:54 UTCEG score recompute
  13. 2026-09-06 22:54 UTCGHSA enrichment
  14. 2026-09-06 13:45 UTCEPSS rescore
  15. 2026-09-05 15:25 UTCEPSS rescore
  16. 2026-09-04 13:58 UTCEPSS rescore
  17. 2026-09-03 16:56 UTCGHSA enrichment
  18. 2026-09-01 15:43 UTCEG score recompute
  19. 2026-09-01 15:43 UTCGHSA enrichment
  20. 2026-09-01 14:29 UTCEG score recompute
  21. 2026-09-01 14:29 UTCGHSA enrichment
  22. 2026-09-01 13:51 UTCEPSS rescore
  23. 2026-08-31 19:28 UTCEG score recompute
  24. 2026-08-31 18:31 UTCEG score recompute
  25. 2026-08-31 18:29 UTCMITRE cvelistV5first tracked

Frequently asked(5)

What is CVE-2023-31308?
CVE-2023-31308 is a low vulnerability published on August 31, 2026. A malicious virtual function can invoke the certain command handlers in the SMU, causing a denial of service due to out-of-bounds memory read.
When was CVE-2023-31308 disclosed?
CVE-2023-31308 was first published in the National Vulnerability Database on August 31, 2026, with the most recent update on September 3, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2023-31308 actively exploited?
CVE-2023-31308 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 99.2% of all scored CVEs.
What is the CVSS score of CVE-2023-31308?
CVE-2023-31308 has a CVSS v3 base score of 3.3 (NVD).
How do I remediate CVE-2023-31308?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2023-31308, 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-2023-31308

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