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HIGH

CVE-2024-5564

Libndp: buffer overflow in route information length field

CVSS v3

8.1

HIGH

EPSS Score

1.2 %

exploit probability, as of 2026-10-19

CISA KEV

No

known exploited

Exploitation

none

SSVC status

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Affected and fixed versions

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Packages

  • libndpAlmaLinux:9all versions · fixed in 1.8-6.el9_4.alma.1
  • libndpAlmaLinux:8all versions · fixed in 1.7-7.el8_10.alma.1

Vendor advisories

  • CVE-2024-5564 Red Hat Product Security198 products fixed

    libndp: buffer overflow in route information length field

  • RHBA-2025:6631 Red Hat Product Security13 products fixed

    Red Hat Bug Fix Advisory: libndp bug fix and enhancement update

  • RHSA-2024:4642 Red Hat Product Security16 products fixed

    Red Hat Security Advisory: libndp security update

  • RHSA-2024:4641 Red Hat Product Security16 products fixed

    Red Hat Security Advisory: libndp security update

  • RHSA-2024:4643 Red Hat Product Security30 products fixed

    Red Hat Security Advisory: libndp security update

  • RHSA-2024:4640 Red Hat Product Security7 products fixed

    Red Hat Security Advisory: libndp security update

5 more advisories

Full record on NVD

Description

A vulnerability was found in libndp. This flaw allows a local malicious user to cause a buffer overflow in NetworkManager, triggered by sending a malformed IPv6 router advertisement packet. This issue occurred as libndp was not correctly validating the route length information.

Technical details

CVSS v3 Vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Published
2024-05-31
Last Modified
2026-04-15

Frequently asked questions

What is CVE-2024-5564?

A vulnerability was found in libndp. This flaw allows a local malicious user to cause a buffer overflow in NetworkManager, triggered by sending a malformed IPv6 router advertisement packet. This issue occurred as libndp was not correctly validating the route length information.

Is CVE-2024-5564 actively exploited?

Active exploitation of CVE-2024-5564 has not been confirmed. Its EPSS score was 1.2% on 2026-10-19, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2024-5564?

CVE-2024-5564 has a CVSS v3 base score of 8.1 (HIGH severity), with vector string CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H.

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