CVE-2021-30004
Summary
| CVE | CVE-2021-30004 |
|---|---|
| State | PUBLISHED |
| Assigner | mitre |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2021-04-02 05:15:13 UTC |
| Updated | 2026-07-07 19:16:47 UTC |
| Description | In wpa_supplicant and hostapd 2.9, forging attacks may occur because AlgorithmIdentifier parameters are mishandled in tls/pkcs1.c and tls/x509v3.c. |
Risk And Classification
Primary CVSS: v3.1 5.3 MEDIUM from [email protected]
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
EPSS: 0.016690000 probability, percentile 0.740070000 (date 2026-07-09)
Problem Types: CWE-20 | n/a | CWE-20 CWE-20 Improper Input Validation
| Version | Source | Type | Score | Severity | Vector |
|---|---|---|---|---|---|
| 3.1 | [email protected] | Primary | 5.3 | MEDIUM | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N |
| 3.1 | ADP | DECLARED | 4.3 | MEDIUM | CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N |
| 3.1 | 134c704f-9b21-4f2e-91b3-4a467353bcc0 | Secondary | 4.3 | MEDIUM | CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N |
| 2.0 | [email protected] | Primary | 5 | AV:N/AC:L/Au:N/C:N/I:P/A:N |
CVSS v3.1 Breakdown
Attack Vector
NetworkAttack Complexity
LowPrivileges Required
NoneUser Interaction
NoneScope
UnchangedConfidentiality
NoneIntegrity
LowAvailability
NoneCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
CVSS v2.0 Breakdown
Access Vector
NetworkAccess Complexity
LowAuthentication
NoneConfidentiality
NoneIntegrity
PartialAvailability
NoneAV:N/AC:L/Au:N/C:N/I:P/A:N
NVD Known Affected Configurations (CPE 2.3)
| Type | Vendor | Product | Version | Update | Edition | Language |
|---|---|---|---|---|---|---|
| Application | W1.fi | Hostapd | 2.9 | All | All | All |
| Application | W1.fi | Wpa Supplicant | 2.9 | All | All | All |
Vendor Declared Affected Products
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| hostap - hostapd/wpa_supplicant | af854a3a-2127-422b-91ae-364da2661108 | w1.fi | Patch, Vendor Advisory |
| wpa_supplicant, hostapd: Multiple Vulnerabilities (GLSA 202309-16) — Gentoo security | af854a3a-2127-422b-91ae-364da2661108 | security.gentoo.org | |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
No vendor comments have been submitted for this CVE.
Legacy QID Mappings
- 174886 SUSE Enterprise Linux Security Update for wpa_supplicant (SUSE-SU-2021:1125-1)
- 174891 SUSE Enterprise Linux Security Update for wpa_supplicant (SUSE-SU-2021:1166-1)
- 500250 Alpine Linux Security Update for hostapd
- 500746 Alpine Linux Security Update for wpa_supplicant
- 501507 Alpine Linux Security Update for wpa_supplicant
- 501792 Alpine Linux Security Update for wpa_supplicant
- 504000 Alpine Linux Security Update for hostapd
- 504521 Alpine Linux Security Update for wpa_supplicant
- 710760 Gentoo Linux wpa_supplicant, hostapd Multiple Vulnerabilities (GLSA 202309-16)
- 750264 OpenSUSE Security Update for wpa_supplicant (openSUSE-SU-2021:0563-1)
- 750683 OpenSUSE Security Update for hostapd (openSUSE-SU-2021:0519-1)
- 900255 CBL-Mariner Linux Security Update for wpa_supplicant 2.9
- 901937 Common Base Linux Mariner (CBL-Mariner) Security Update for wpa_supplicant (6974-1)
- 903590 Common Base Linux Mariner (CBL-Mariner) Security Update for wpa_supplicant (4051)