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TI-2023-05738 Aliases CVE-2023-6247GHSA-7j74-rq7m-gr5m

NULL pointer dereference in OpenVPN 3 Core Library

Priority LOW 30CWE-476Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
Denial of service
Confidentiality · integrity · availability
None · None · High
Fix status
No fix listed

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-476.

Summary

The PKCS#7 parser in OpenVPN 3 Core Library versions through 3.8.3 did not properly validate the parsed data, which would result in the application crashing.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00778 56th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
OpenVPNOpenVPN 3 Core Library3.0 – 3.8.3—No fix listedCNA
  • OpenVPN 3 Core Library VendorOpenVPN Affected 3.0 – 3.8.3 Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:openvpn:openvpn_3:*:*:*:*:*:*:*:*before 3.8.4VulnerableOpenVPN
  • cpe:2.3:a:openvpn:openvpn_3:*:*:*:*:*:*:*:* Versions before 3.8.4 Vulnerable ·OpenVPN

Remediation

No fixed version listed by the sources yet.

Vendor assessments

Red Hat

Red Hat's page for this CVE →

Not affected: 1 product
  • Red Hat

Timeline

  1. 2026-10-02 Threatist record created from CVE-2023-6247
  2. 2026-10-03 Alias added: GHSA-7j74-rq7m-gr5m

References

Patch 1

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences