Description
Unbound before 1.9.5 allows an integer overflow in the regional allocator via the ALIGN_UP macro. NOTE: The vendor disputes that this is a vulnerability. Although the code may be vulnerable, a running Unbound installation cannot be remotely or locally exploited
Published: 2021-04-27
Score: 9.8 Critical
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

No analysis available yet.

Remediation

No remediation available yet.

Tracking

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Advisories
Source ID Title
Debian DLA Debian DLA DLA-2652-1 unbound1.9 security update
Ubuntu USN Ubuntu USN USN-4938-1 Unbound vulnerabilities
History

Mon, 23 Feb 2026 16:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Subscriptions

Debian Debian Linux
Nlnetlabs Unbound
Redhat Enterprise Linux Rhel Eus
cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

Updated: 2024-08-05T03:00:18.860Z

Reserved: 2021-04-27T00:00:00.000Z

Link: CVE-2019-25033

cve-icon Vulnrichment

Updated: 2024-08-05T03:00:18.860Z

cve-icon NVD

Status : Modified

Published: 2021-04-27T06:15:07.507

Modified: 2024-11-21T04:39:47.237

Link: CVE-2019-25033

cve-icon Redhat

Severity : Moderate

Publid Date: 2019-12-11T00:00:00Z

Links: CVE-2019-25033 - Bugzilla

cve-icon OpenCVE Enrichment

No data.

Weaknesses