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CVE-2025-32801

Loading a malicious hook library can lead to local privilege escalation

High7.8EPSS 0.30%
Published
Updated
Reserved
Assigned by
isc

Description

Kea configuration and API directives can be used to load a malicious hook library. Many common configurations run Kea as root, leave the API entry points unsecured by default, and/or place the control sockets in insecure paths. This issue affects Kea versions 2.4.0 through 2.4.1, 2.6.0 through 2.6.2, and 2.7.0 through 2.7.8.

Timeline

  1. ID reserved

    By isc

  2. · 48 days later

    Published

Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.

Scores

CVSS scores of CVE-2025-32801, by who scored it
Scored byCVSSScoreVector
iscCNA (assigner)3.1High7.8CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
NVDNVD · Deferred3.1High7.8CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS (exploitation in 30 days)
0.30% · top 77% of all CVEs (7 Nov 2026)
CISA SSVC
Exploitation: none · Automatable: no · Technical impact: total
Loading the EPSS history…

The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.8.

Weakness

Affected products

  • ISC · Kea

    • affected 2.4.0 – ≤ 2.4.1
    • affected 2.6.0 – ≤ 2.6.2
    • affected 2.7.0 – ≤ 2.7.8

What to do

Solution: Upgrade to the patched release most closely related to your current version of Kea: 2.4.2, 2.6.3, or 2.7.9.

Workaround: Two mitigation approaches are possible: (1) Disable the Kea API entirely, by (1a) disabling the `kea-ctrl-agent`, and (1b) removing any `"control-socket"` stanzas from the Kea configuration files; or (2) Secure access to the API by (2a) requiring authentication (a password or client certificate) for the `kea-ctrl-agent`, and (2b) configuring all `"control-socket"` stanzas to use a directory restricted to only trusted users.

Exploitation: We are not aware of any active exploits.

References (1)

Sources

The same CVE in the primary databases and aggregators, to check against.

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Record last updated .