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CVE-2026-13698

34
FAUCET Score

A memory leak in OpenVPN version 2.5.0 through 2.5.11, 2.6.0 through 2.6.20 and 2.7_alpha1 through 2.7.4 allows remote attackers with a valid tls-crypt-v2 client key to potentially cause a denial of service

First published: Jul 6, 2026Last modified: Jul 6, 2026

Impacted Technologies

VendorProductVersion(s)CPE
>= 2.5.0, <= 2.5.11CPE matchmatch criteria
cpe:2.3:a:openvpn:openvpn:*:*:*:*:community:*:*:*
>= 2.6.0, < 2.6.21CPE matchmatch criteria
cpe:2.3:a:openvpn:openvpn:*:*:*:*:community:*:*:*
>= 2.7, < 2.7.5CPE matchmatch criteria
cpe:2.3:a:openvpn:openvpn:*:*:*:*:community:*:*:*
>= 2.5.0, <= 2.5.11CPE match
cpe:2.3:a:openvpn:openvpn:*:*:*:*:*:*:*:*
>= 2.6.0, <= 2.6.20CPE match
cpe:2.3:a:openvpn:openvpn:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 4.0

6.0MEDIUM

CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
PRESENT
Privileges Required
NONE
User Interaction
PASSIVE
VS Confidentiality
NONE
VS Integrity
NONE
VS Availability
HIGH
SS Confidentiality
NONE
SS Integrity
NONE
SS Availability
NONE
Exploit Maturity
NOT_DEFINED
CvssVersion
4.0

Exploit Intelligence

EPSS Score
0.31%
Probability of exploitation in next 30 days
EPSS Percentile
23.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0031 is in the 6th percentile among its peer group of 51,485 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (3)

ubuntupatch availablevia ubuntu_usn
Product: openvpn (jammy)Fixed in: 2.5.11-0ubuntu0.22.04.4
ubuntupatch availablevia ubuntu_usn
Product: openvpn (noble)Fixed in: 2.6.19-0ubuntu0.24.04.3
ubuntupatch availablevia ubuntu_usn
Product: openvpn (resolute)Fixed in: 2.7.0-1ubuntu1.2

Vendor Advisories (1)

ubuntuUSN-8540-1

OpenVPN vulnerabilities

Jul 14, 2026

References

community.openvpn.net / Security%20Announcements/CVE-2026-13698
Vendor Advisory