CVE-2021-30004

mediumpriority · track · 22EPSS 0.016 · 76 %ileDEEUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

1.64% (76th) EPSS

CVSS 5 · medium

Is it mine?

8 products

Check your exposure

Who says so?

4 sources

cnnvd · enisa_euvd · cert_bund · nvd

EPSS · scored 2026-10-27

In wpa_supplicant and hostapd 2.9, forging attacks may occur because AlgorithmIdentifier parameters are mishandled in tls/pkcs1.c and tls/x509v3.c.

cvss

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

5.3

010

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

v2.05mediumAV:N/AC:L/Au:N/C:N/I:P/A:Nprimary · NVD / NIST USexploitability 10 · impact 2.9

v3.15.3mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:Nprimary · NVD / NIST USexploitability 3.9 · impact 1.4

v3.14.3mediumCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:Nsecondary · ENISA EU

v3.14.3mediumCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:Nsecondaryexploitability 2.8 · impact 1.4

v3.14.9mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N/E:Usecondary · CVSS-BT (t0sche)

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Trackcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-20USprimary

affected products (8)

Products and version ranges known to be affected.

EMC Avamarall versionscert_bundDEcpe:/a:emc:avamar:-
Gentoo Linuxall versionscert_bundDEcpe:/o:gentoo:linux:-
Open Source hostapd 2.9all versionscert_bundDEcpe:/a:w1.f1:hostapd:2.9
Open Source wpa_supplicant 2.9all versionscert_bundDEcpe:/a:open_source:wpa_supplicant:2.9
SUSE Linuxall versionscert_bundDEcpe:/o:suse:suse_linux:-
n/a n/a≤ n/aenisa_euvdEU
w1.fi hostapd= 2.9nvdUScpe:2.3:a:w1.fi:hostapd:*:*:*:*:*:*:*:*
w1.fi wpa supplicant= 2.9nvdUScpe:2.3:a:w1.fi:wpa_supplicant:*:*:*:*:*:*:*:*

advisories (1)

Vendor and ecosystem advisories describing this.

WID-SEC-W-2023-2523wpa_supplicant: Schwachstelle ermöglicht Manipulation von DateienDeutsch2021-04-06csaf · cert_bundDE
Ein entfernter, anonymer Angreifer kann eine Schwachstelle in wpa_supplicant und hostapd ausnutzen, um Dateien zu manipulieren.

also known as (3)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd cert_bund nvd NVD CVE.org MITRE

published 2021-04-02modified 2026-07-07

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+25188 more

references (11)

External citations — patches, advisories, analysis.

scry

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