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CVE•Published 2026-09-07•Modified 2026-09-08•0 articles on news•4 live references•NVD data

CVE-2026-84256

Vulnerability data via NVD (ingested)

CVSS v3.1
—
EPSS percentile
31
Exploit Prediction Scoring System · top 69% of all CVEs
Weaknesses (CWE)
CWE-78Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')CWE-88Improper Neutralization of Argument Delimiters in a Command ('Argument Injection')
Description

An argument parsing issue in OpenVPN 2.1_rc10 through 2.6.22 and 2.7_alpha1 through 2.7.6 on Windows allows remote authenticated users to execute arbitrary commands via a crafted certificate subject

Timeline
Published 2026-09-07
Modified 2026-09-08

External references

NVDMITREExploit-DBVulnCheck

Search for exposed instances

Shodan + Censys queries derived from NVD's CPE data. The vuln tag catches assets Shodan has explicitly linked to this CVE; the product / banner fingerprints find exposed instances even when the vuln tag was never applied (which is common).

Shodan · vuln tag0 hosts
vuln:CVE-2026-84256
Hosts Shodan has explicitly fingerprinted as vulnerable.
More intel sources (5)
Shodan report
vuln:CVE-2026-84256
Country / ASN / product breakdown for the vuln query.
Censys
vulnerabilities.cve_id: CVE-2026-84256
Censys host search filtered to this CVE id.
grep.app
CVE-2026-84256
Public source-code mentions — fast PoC discovery.
GitHub code
CVE-2026-84256
GitHub code search for direct mentions.
Google dork
"CVE-2026-84256" exploit -site:nvd.nist.gov
Write-ups and news, NVD excluded.

Known PoCs on GitHub

No public proof-of-concept repositories found for CVE-2026-84256 on GitHub.
We haven't classified any articles referencing CVE-2026-84256 yet. The external references above still apply.