Vulnerability Details CVE-2026-13122
OpenVPN version 2.6.0 through 2.6.20 and 2.7_alpha1 through 2.7.4 allows remote attackers to cause a denial of service via a malformed authentication token that triggers a reachable assertion when external-auth is enabled
Exploit prediction scoring system (EPSS) score
EPSS Score 0.005
EPSS Ranking 38.5%
CVSS Severity
CVSS v3 Score 5.3
Products affected by CVE-2026-13122
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cpe:2.3:a:openvpn:openvpn:2.6.0
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cpe:2.3:a:openvpn:openvpn:2.6.1
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cpe:2.3:a:openvpn:openvpn:2.6.10
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cpe:2.3:a:openvpn:openvpn:2.6.11
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cpe:2.3:a:openvpn:openvpn:2.6.12
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cpe:2.3:a:openvpn:openvpn:2.6.13
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cpe:2.3:a:openvpn:openvpn:2.6.14
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cpe:2.3:a:openvpn:openvpn:2.6.15
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cpe:2.3:a:openvpn:openvpn:2.6.16
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cpe:2.3:a:openvpn:openvpn:2.6.17
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cpe:2.3:a:openvpn:openvpn:2.6.18
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cpe:2.3:a:openvpn:openvpn:2.6.19
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cpe:2.3:a:openvpn:openvpn:2.6.2
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cpe:2.3:a:openvpn:openvpn:2.6.20
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cpe:2.3:a:openvpn:openvpn:2.6.3
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cpe:2.3:a:openvpn:openvpn:2.6.4
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cpe:2.3:a:openvpn:openvpn:2.6.5
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cpe:2.3:a:openvpn:openvpn:2.6.6
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cpe:2.3:a:openvpn:openvpn:2.6.7
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cpe:2.3:a:openvpn:openvpn:2.6.8
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cpe:2.3:a:openvpn:openvpn:2.6.9
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cpe:2.3:a:openvpn:openvpn:2.7
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cpe:2.3:a:openvpn:openvpn:2.7.1
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cpe:2.3:a:openvpn:openvpn:2.7.2
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cpe:2.3:a:openvpn:openvpn:2.7.3
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cpe:2.3:a:openvpn:openvpn:2.7.4