5.9mediumMedium

CVE-2019-25031

Nlnetlabs Unbound

Unbound before 1.9.5 allows configuration injection in create_unbound_ad_servers.sh upon a successful man-in-the-middle attack against a cleartext HTTP session. NOTE: The vendor does not consider this a vulnerability of the Unbound software. create_unbound_ad_servers.sh is a contributed script from the community that facilitates automatic configuration creation. It is not part of the Unbound installation

What the metrics mean

  • It is reachable over a network, without needing local access.
  • For an attacker who can reach it, exploitation depends on conditions outside the attacker's control.
  • To exploit it, no account is needed.
  • Beyond that, no action by a user is required.

Scoring

CVSS
5.9 (v3.1)
Vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N
Weakness
CWE-74
Assigned by
cve@mitre.org

Dates

Published
2021-04-27
Last modified
2026-08-25
Sources
NVD

Affected products

  • Nlnetlabs Unbound- 1.9.5
  • Debian Debian Linux9.0

As listed in the NVD configuration data. Not a statement about your estate.

References