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Fencer Vulns
medium 6.5

CVE-2018-14526 json

An issue was discovered in rsn_supp/wpa.c in wpa_supplicant 2.0 through 2.6.

published 2018-08-08 8 y ago modified 2026-06-17 4 mo ago also EUVD-2018-6436

cvss
6.5
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
1.5%
EPSS 1.5% chance of exploitation in 30 days, percentile 74%
public exploits
0
none known

Summary

An issue was discovered in rsn_supp/wpa.c in wpa_supplicant 2.0 through 2.6. Under certain conditions, the integrity of EAPOL-Key messages is not checked, leading to a decryption oracle. An attacker within range of the Access Point and client can abuse the vulnerability to recover sensitive information.

Patch / fix

  • wpa Debian 14, Debian 13, Debian 12 2:2.6-18

debian advisories DEBIAN-CVE-2018-14526

  • wpa Ubuntu 14.04 LTS 2.1-0ubuntu1.6
  • wpa Ubuntu 16.04 LTS 2.4-0ubuntu6.3
  • wpa Ubuntu 18.04 LTS 2:2.6-15ubuntu2.1

ubuntu advisories UBUNTU-CVE-2018-14526

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

  • wpa_supplicant RHEL 7 1:2.6-12.el7

red hat advisories RHSA-2018:3107

  • wpa_supplicant SLES for SAP 12 SP4, SLES for SAP 12 SP3, SLES 12 SP4-LTSS +8 more 2.9-15.22.1
  • wpa_supplicant SLES for SAP 12 SP5, SLES 12 SP5 2.9-23.3.1
  • wpa_supplicant SLES for SAP 15, SLES 15-LTSS, SLE Module for Basesystem 15 SP2 +3 more 2.9-4.20.1
  • wpa_supplicant SLES for SAP 12 SP4, SLES for SAP 12 SP3, SLES for SAP 12 SP2 +10 more 2.6-15.10.1
  • wpa_supplicant SLE Module for Basesystem 15 2.6-4.11.1

suse advisories SUSE-SU-2022:1853-1SUSE-SU-2020:3424-1SUSE-SU-2020:3380-1SUSE-SU-2019:1088-1SUSE-SU-2018:3480-1

  • hostapd openSUSE Tumbleweed 2.9-6.2
  • wpa_supplicant openSUSE Tumbleweed 2.9-13.4
  • wpa_supplicant openSUSE Leap 15.2 2.9-lp152.8.3.1
  • wpa_supplicant openSUSE Leap 15.1 2.9-lp151.5.10.1

opensuse advisories openSUSE-SU-2024:10846-1openSUSE-SU-2024:11515-1openSUSE-SU-2020:2059-1openSUSE-SU-2020:2053-1

  • wpa_supplicant Alpine 3.24, Alpine 3.23, Alpine 3.22 +14 more 2.6-r14
  • wpa_supplicant Alpine 3.5 2.6-r3
  • wpa_supplicant Alpine 3.6 2.6-r5
  • wpa_supplicant Alpine 3.7 2.6-r9

alpine advisories ALPINE-CVE-2018-14526

Alpine secdb © Alpine Linux, from https://secdb.alpinelinux.org via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • wpa_supplicant Arch Linux 1:2.6-12

arch linux advisories AVG-752

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-2018-14526 updated cvss 8.3

wpa_supplicant: Unauthenticated EAPOL-Key decryption in wpa_supplicant

  • Red Hat Enterprise Linux 5 wpa_supplicant Red Hat Enterprise Linux 6 wpa_supplicant Red Hat Virtualization 4 wpa_supplicant
    affected: no fix planned “Will not fix”
  • Red Hat Enterprise Linux Client (v. 7) wpa_supplicant 2.6-12.el7 Red Hat Enterprise Linux ComputeNode (v. 7) wpa_supplicant 2.6-12.el7 Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server (v. 7) wpa_supplicant 2.6-12.el7 Red Hat Enterprise Linux Server (v. 7) wpa_supplicant 2.6-12.el7 Red Hat Enterprise Linux Workstation (v. 7) wpa_supplicant 2.6-12.el7
    fixed: vendor fix RHSA-2018:3107
  • Red Hat Enterprise Linux 8 wpa_supplicant
    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-19-344-01 updated cvss 6.5

Siemens SCALANCE W700 and W1700

  • Siemens SCALANCE W700 <V6.4
    affected: fixed in V6.4, mitigation
  • Siemens SCALANCE W1700 <V1.1
    affected: fixed in V1.1, mitigation

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

Exploit prediction

1.48% chance of exploitation in the next 30 days, higher than 74% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 3.0 6.5 CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
NVD 2.0 3.3 AV:A/AC:L/Au:N/C:P/I:N/A:N

Classification

Weakness
  • CWE-924 Improper Enforcement of Message Integrity During Transmission in a Communication Channel

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.