CVE-2017-7522

mediumpriority · track · 28EPSS 0.055 · 93 %ileEUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

5.54% (93rd) EPSS

CVSS 4 · medium

Is it mine?

6 products

Check your exposure

Who says so?

3 sources

cnnvd · enisa_euvd · nvd

EPSS · scored 2026-10-27

OpenVPN versions before 2.4.3 and before 2.3.17 are vulnerable to denial-of-service by authenticated remote attacker via sending a certificate with an embedded NULL character.

cvss

Technical severity, 0–10. One row per scoring source.

6.5

010

base score 0–10 · higher = more severe · hover a vector to decode

v2.04mediumAV:N/AC:L/Au:S/C:N/I:N/A:Pprimary · NVD / NIST USexploitability 8 · impact 2.9

v3.06.5mediumCVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:Hprimary · NVD / NIST USexploitability 2.8 · impact 3.6

v3.06mediumCVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/E:Usecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-476USprimaryCWE-20US

affected products (6)

Products and version ranges known to be affected.

OpenVPN Technologies, Inc OpenVPN≤ before 2.3.17enisa_euvdEU
OpenVPN Technologies, Inc OpenVPN≤ before 2.4.3enisa_euvdEU
openvpn openvpn≤ 2.3.16nvdUScpe:2.3:a:openvpn:openvpn:*:*:*:*:*:*:*:*
openvpn openvpn= 2.4.0nvdUScpe:2.3:a:openvpn:openvpn:*:*:*:*:*:*:*:*
openvpn openvpn= 2.4.1nvdUScpe:2.3:a:openvpn:openvpn:*:*:*:*:*:*:*:*
openvpn openvpn= 2.4.2nvdUScpe:2.3:a:openvpn:openvpn:*:*:*:*:*:*:*:*

also known as (3)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd nvd NVD CVE.org MITRE

published 2017-06-27modified 2026-06-17

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+8783 more

references (8)

External citations — patches, advisories, analysis.

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