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Vulnerability record · CVE-2022-37660 · published 11 February 2025

CVE-2022-37660: W1.fi hostapd vulnerability

WW1.Fi · Hostapd

In hostapd 2.10 and earlier, the PKEX code remains active even after a successful PKEX association. An attacker that successfully bootstrapped public keys with another entity using PKEX in the past, will be able to subvert a future bootstrapping by passively observing public keys, re-using the encrypting element Qi and subtracting it from the captured message M (X = M - Qi). This will result in the public ephemeral key X; the only element required to subvert the PKEX association.

6.5 CVSS 3.1 Medium EPSS 0.38% · top 70.2% CWE-323 · CWE-323
6.5CVSS 3.1 base score
0.38%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
4References
14 Jul 2026Last modified by NVD

Description

In hostapd 2.10 and earlier, the PKEX code remains active even after a successful PKEX association. An attacker that successfully bootstrapped public keys with another entity using PKEX in the past, will be able to subvert a future bootstrapping by passively observing public keys, re-using the encrypting element Qi and subtracting it from the captured message M (X = M - Qi). This will result in the public ephemeral key X; the only element required to subvert the PKEX association.

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://link.springer.com/article/10.1007/s10207-025-00988-3 Third Party Advisory
https://w1.fi/cgit/hostap/commit/?id=15af83cf1846870873a011ed4d714732f01cd2e4 Patch
https://lists.debian.org/debian-lts-announce/2025/04/msg00019.html
https://cert-portal.siemens.com/productcert/html/ssa-585531.html

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2022-37660), CISA KEV, FIRST EPSS (scores of 2026-10-12). This page is refreshed as NVD updates the record.