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CVE-2023-46850

32
FAUCET Score

CVE-2023-46850 is a critical use-after-free vulnerability affecting OpenVPN versions 2.6.0 to 2.6.6, including distributions like Debian and Fedora. With a CVSS score of 9.8, it allows unauthenticated attackers to achieve remote execution, memory leaks, or undefined behavior by sending specially crafted network buffers. While highly severe, there is currently no public exploit code, Metasploit modules, or evidence of active exploitation, and it has garnered minimal community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
>= 2.6.0, <= 2.6.6CPE matchmatch criteria
cpe:2.3:a:openvpn:openvpn:*:*:*:*:community:*:*:*
>= 2.11.0, <= 2.11.3CPE matchmatch criteria
cpe:2.3:a:openvpn:openvpn_access_server:*:*:*:*:*:*:*:*
>= 2.12.0, < 2.12.2CPE matchmatch criteria
cpe:2.3:a:openvpn:openvpn_access_server:*:*:*:*:*:*:*:*
12.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:12.0:*:*:*:*:*:*:*
39CPE matchmatch criteria
cpe:2.3:o:fedoraproject:fedora:39:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

9.8CRITICAL

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
2.00%
Probability of exploitation in next 30 days
EPSS Percentile
78.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0200 is in the 67th percentile among its peer group of 36,862 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (1)

oroincpatch availablevia llm_extracted
Fixed in: 2.12.2
View patch

Vendor Advisories (1)

oroincllm-oroinc-0cf7dbaaf29db6b5HIGH

Division by Zero and Use-After-Free Vulnerabilities in OpenVPN Access Server

Nov 9, 2023

References

lists.fedoraproject.org / archives/list/[email protected]/message/L3FS46ANNTAVLIQY56ZKGM5CBTRVBUNE
Mailing List
lists.fedoraproject.org / archives/list/[email protected]/message/O54I7D753V6PU6XBU26FEROD2DSHEJQ4
debian.org / security/2023/dsa-5555
Third Party Advisory
community.openvpn.net / openvpn/wiki/CVE-2023-46850
Vendor Advisory
openvpn.net / security-advisory/access-server-security-update-cve-2023-46849-cve-2023-46850
Vendor Advisory