CVE-2023-54334

CRITICALNVD 9.89.8—
EchelonGraph scoreMEDIUM confidence

Score 9.8 from GitHub Security Advisory (severity: HIGH) published 2026-01-14. NVD baseline CVSS 9.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Elevated
9.8
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 0%CVSS: 9.8Exploit: NoneExposed: 0

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

Explorer32++ 1.3.5.531 contains a buffer overflow vulnerability in Structured Exception Handler (SEH) records that allows attackers to execute arbitrary code. Attackers can exploit the vulnerability by providing a long file name argument over 396 characters to corrupt the SEH chain and potentially execute malicious code.

CVSS v3
9.8
EG Score
9.8(medium)
EG Risk
60(Track*)
EG Risk 60/100SSVC: 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
Severity98% × 45%
Exploitation40% × 40%
Automatability0% × 15%
Action: Watch closely — could escalate to Attend.
EPSS
39.8%
KEV
Not listed

Published

January 13, 2026

Last Modified

January 30, 2026

Advisory Details (3)

Auto-updated Jul 6, 2026
🔬 Proof of concept available. No patch confirmed yet.
generic🟡 PoC Available

Explorer32++ v1.3.5.531 - Buffer overflow - Windows local Exploit

https://www.exploit-db.com/exploits/51077
generic

Explorer32++ 1.3.5.531 - Buffer overflow | Advisories | VulnCheck

https://www.vulncheck.com/advisories/explorer-buffer-overflow
generic

Explorer++ - A small and fast file manager for Windows

https://web.archive.org/web/20230205040401/http://www.explorerplusplus.com/

Weakness Classification(2)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 13× in last 7d / 45× 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. 2026-07-23 14:16 UTCEPSS rescore
  2. 2026-07-23 02:30 UTCEG score recompute
  3. 2026-07-22 23:16 UTCEG score recompute
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  60. 2026-05-29 16:00 UTCEG score recompute
  61. 2026-05-29 16:00 UTCGHSA enrichment
  62. 2026-05-29 13:43 UTCEPSS rescore

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2023-54334?
CVE-2023-54334 is a critical vulnerability published on January 13, 2026. Explorer32++ 1.3.5.531 contains a buffer overflow vulnerability in Structured Exception Handler (SEH) records that allows attackers to execute arbitrary code. Attackers can exploit the vulnerability by providing a long file name argument over 396 characters to corrupt the SEH chain and potentially…
When was CVE-2023-54334 disclosed?
CVE-2023-54334 was first published in the National Vulnerability Database on January 13, 2026, with the most recent update on January 30, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2023-54334 actively exploited?
CVE-2023-54334 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 39.8% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2023-54334?
CVE-2023-54334 has a CVSS v3 base score of 9.8 (NVD).
How do I remediate CVE-2023-54334?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2023-54334, 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.

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