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CVE-2025-32801· NVD / CVE Program· CNA isc

Loading a malicious hook library can lead to local privilege escalation

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.

HighCVSS 7.8 · v3.1—No exploit Fix available
Published
May 28, 2025
Updated
Jun 17, 2026
EPSS
0.3% · 16th percentile
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Report tools

JSON

Action score

31

Monitor

Low priority for now.

CVSS
31 / 40 · 7.8 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.3%

CISA SSVC decision

Exploitation
none
Automatable
no
Technical impact
total

Vulnrichment: CISA's decision-tree inputs.

CNA vs NVD score

NVD
—
CNA · isc
7.8
NVD has not scored this yet; the score shown is the CNA’s.

The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.

Affected systems

—

Versions reported by the vendor

Affected version ranges reported by the assigning authority (isc). Independent of NVD's CPE analysis and usually ahead of it.

  • ISC Kea

    • 2.4.0 and later · up to and including 2.4.1affected
    • 2.6.0 and later · up to and including 2.6.2affected
    • 2.7.0 and later · up to and including 2.7.8affected

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

EcosystemPackageAffected rangeFix
AlmaLinux:10kea-docbefore 2.6.3-1.el10_02.6.3-1.el10_0
Alpine:v3.22keabefore 2.6.3-r02.6.3-r0
Debian:12isc-keaall versions—
Debian:13isc-keabefore 2.6.3-12.6.3-1
openSUSE:Tumbleweedkeabefore 2.6.3-1.12.6.3-1.1
Red Hat:enterprise_linux:10.0keabefore 0:2.6.3-1.el10_00:2.6.3-1.el10_0
Red Hat:enterprise_linux:10.0kea-debuginfobefore 0:2.6.3-1.el10_00:2.6.3-1.el10_0
Red Hat:enterprise_linux:10.0kea-debugsourcebefore 0:2.6.3-1.el10_00:2.6.3-1.el10_0
Red Hat:enterprise_linux:10.0kea-docbefore 0:2.6.3-1.el10_00:2.6.3-1.el10_0
Red Hat:enterprise_linux:10.0kea-hooksbefore 0:2.6.3-1.el10_00:2.6.3-1.el10_0
Red Hat:enterprise_linux:10.0kea-hooks-debuginfobefore 0:2.6.3-1.el10_00:2.6.3-1.el10_0
Red Hat:enterprise_linux:10.0kea-keamabefore 0:2.6.3-1.el10_00:2.6.3-1.el10_0
Red Hat:enterprise_linux:10.0kea-keama-debuginfobefore 0:2.6.3-1.el10_00:2.6.3-1.el10_0
Red Hat:enterprise_linux:10.0kea-libsbefore 0:2.6.3-1.el10_00:2.6.3-1.el10_0
Red Hat:enterprise_linux:10.0kea-libs-debuginfobefore 0:2.6.3-1.el10_00:2.6.3-1.el10_0
Rocky Linux:10keabefore 0:2.6.3-1.el10_00:2.6.3-1.el10_0
SUSE:Linux Enterprise Module for Basesystem 15 SP7keabefore 2.6.3-150700.3.3.52.6.3-150700.3.3.5
SUSE:Linux Enterprise Server 15 SP6-LTSSkeabefore 2.6.3-150600.13.6.12.6.3-150600.13.6.1
SUSE:Linux Enterprise Server 15 SP6-LTSSkeabefore 2.6.3-150600.13.6.12.6.3-150600.13.6.1

Same product

isc: all records

Other highest-scoring records for the same primary product.

  • CVE-2018-5739Failure to release memory may exhaust system resources
    31Monitor
  • CVE-2026-3608Stack overflow in Kea daemons
    30Monitor
  • CVE-2025-11232Invalid characters cause assert
    30Monitor
  • CVE-2025-40779Kea crash upon interaction between specific client options and subnet selection
    30Monitor
  • CVE-2015-8373The kea-dhcp4 and kea-dhcp6 servers 0.9.2 and 1.0.0-beta in ISC Kea, when certain debugging settings are used, allow remote attackers to cau
    28Monitor
  • CVE-2019-6474A packet containing a malformed DUID can cause the kea-dhcp6 server to terminate
    26Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / packageFixed versionSource
almalinux:kea-doc2.6.3-1.el10_0 · AlmaLinux:10Package registry (OSV)
alpine:kea2.6.3-r0 · Alpine:v3.22Package registry (OSV)
debian:isc-kea2.6.3-1 · Debian:13Package registry (OSV)
opensuse:kea2.6.3-150600.13.6.1 · openSUSE:Leap 15.6Package registry (OSV)
red hat:kea0:2.6.3-1.el10_0 · Red Hat:enterprise_linux:10.0Package registry (OSV)
red hat:kea-debuginfo0:2.6.3-1.el10_0 · Red Hat:enterprise_linux:10.0Package registry (OSV)
red hat:kea-debugsource0:2.6.3-1.el10_0 · Red Hat:enterprise_linux:10.0Package registry (OSV)
red hat:kea-doc0:2.6.3-1.el10_0 · Red Hat:enterprise_linux:10.0Package registry (OSV)
red hat:kea-hooks0:2.6.3-1.el10_0 · Red Hat:enterprise_linux:10.0Package registry (OSV)
red hat:kea-hooks-debuginfo0:2.6.3-1.el10_0 · Red Hat:enterprise_linux:10.0Package registry (OSV)
red hat:kea-keama0:2.6.3-1.el10_0 · Red Hat:enterprise_linux:10.0Package registry (OSV)
red hat:kea-keama-debuginfo0:2.6.3-1.el10_0 · Red Hat:enterprise_linux:10.0Package registry (OSV)
red hat:kea-libs0:2.6.3-1.el10_0 · Red Hat:enterprise_linux:10.0Package registry (OSV)
red hat:kea-libs-debuginfo0:2.6.3-1.el10_0 · Red Hat:enterprise_linux:10.0Package registry (OSV)
rocky linux:kea0:2.6.3-1.el10_0 · Rocky Linux:10Package registry (OSV)
suse:kea2.6.3-150600.13.6.1 · SUSE:Linux Enterprise Server 15 SP6-LTSSPackage registry (OSV)
suse:kea2.6.3-150700.3.3.5 · SUSE:Linux Enterprise Module for Basesystem 15 SP7Package registry (OSV)

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

No nightly-computed relations.

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

Technical details

Attack conditions

  • Someone with local access to the system can trigger it.
  • A low-privileged account is enough.
  • No user action is required.
  • No special conditions are required; it is repeatable.

If successful

Confidentiality
high · data can be read
Integrity
high · data or configuration can be modified
Availability
high · the service can be disrupted
Attack vector
Local
Attack complexity
Low
Privileges required
Low
User interaction
None
Scope
Unchanged
Confidentiality impact
High
Integrity impact
High
Availability impact
High

Weakness class (CWE)

CWE-94 · Improper Control of Generation of Code ('Code Injection')

CVSS vector

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

nvd-secondary

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

Noroxi analysis

No Noroxi analysis for this record yet

We don't hand-write analysis for all 385,000+ vulnerabilities; that wouldn't be honest. For notable, high-impact vulnerabilities our team writes the mechanism, detection and remediation steps.

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Change log

  1. Fix✗ → ✓

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References

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records