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Fencer Vulns
medium 6.5

CVE-2022-37660 json

In hostapd 2.10 and earlier, the PKEX code remains active even after a successful PKEX association.

published 2025-02-11 20 mo ago modified 2026-07-14 3 mo ago also EUVD-2022-40274

cvss
6.5
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.4%
EPSS 0.4% chance of exploitation in 30 days, percentile 31%
public exploits
0
none known

Summary

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.

Patch / fix

  • Siemens SIDIS Secured SmartPlug V7.26.0310
  • wpa Debian 12 2:2.10-12+deb12u3
  • wpa Debian 14, Debian 13 2:2.10-24

debian advisories DEBIAN-CVE-2022-37660

  • wpa Ubuntu 20.04 LTS 2:2.9-1ubuntu4.6
  • wpa Ubuntu 22.04 LTS 2:2.10-6ubuntu2.2
  • wpa Ubuntu 24.04 LTS 2:2.10-21ubuntu0.2

ubuntu advisories UBUNTU-CVE-2022-37660

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • hostapd openSUSE Tumbleweed 2.12-1.1

opensuse advisories openSUSE-SU-2026:12398-1

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2022-37660 updated cvss 7.4

hostapd: Public Key Exchange (PKEX) Reuse Vulnerability in hostapd

  • Red Hat Enterprise Linux 8 hostapd
    affected: workaround, no fix planned “Will not fix”
  • Red Hat Enterprise Linux 9 hostapd
    affected: workaround, no fix available
  • Red Hat Enterprise Linux 10 hostapd
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

cisa ICSA-26-202-04 updated cvss 6.5

Siemens SIDIS Secured SmartPlug

  • Siemens SIDIS Secured SmartPlug < 7.26.0310
    affected: fixed in V7.26.0310

Facts from CISA's republication of the vendor's own advisory (CSAF); the linked advisory is the authoritative source. CISA notification · csaf

CISA SSVC

Exploitation
none
Automatable
yes
Technical impact
partial
Assessed
20 mo ago

Exploit prediction

0.38% chance of exploitation in the next 30 days, higher than 31% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CISA ADP 3.1 6.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
CNA 3.1 6.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N

Affected products

  • Siemens SIDIS Secured SmartPlug

Classification

Weakness
  • CWE-323 Reusing a Nonce, Key Pair in Encryption

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.