| Source | ID | Title |
|---|---|---|
Ubuntu USN |
USN-8282-1 | Unbound vulnerabilities |
Solution
This issue is fixed starting with version 1.25.1
Workaround
No workaround given by the vendor.
Thu, 21 May 2026 12:15:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Weaknesses | CWE-367 | |
| References |
| |
| Metrics |
threat_severity
|
threat_severity
|
Wed, 20 May 2026 23:00:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Nlnetlabs
Nlnetlabs unbound |
|
| CPEs | cpe:2.3:a:nlnetlabs:unbound:*:*:*:*:*:*:*:* | |
| Vendors & Products |
Nlnetlabs
Nlnetlabs unbound |
|
| Metrics |
cvssV3_1
|
Wed, 20 May 2026 13:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Metrics |
ssvc
|
Wed, 20 May 2026 10:00:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | NLnet Labs Unbound 1.14.0 up to and including version 1.25.0 has a locking inconsistency vulnerability that when certain conditions are met (multi-threaded, RPZ XFR reload, RPZ zone with 'rpz-nsip'/'rpz-nsdname' triggers) it could result in heap use-after-free and eventual crash. An adversary can exploit the vulnerability if conditions are first met on a vulnerable Unbound, i.e., multi-threaded, an RPZ zone with 'rpz-nsip'/'rpz-nsdname' triggers and an ongoing XFR for that RPZ zone. Local RPZ files do not trigger the vulnerability. If the timing is right and an XFR happens at the same time another thread needs to read that RPZ zone, the reader may not hold the lock long enough and the thread applying the XFR may free objects that the reader is about to walk causing the use-after-free. Unbound 1.25.1 contains a patch with a fix to the locking code. | |
| Title | Use after free and crash under special conditions in RPZ code | |
| Weaknesses | CWE-413 | |
| References |
| |
| Metrics |
cvssV4_0
|
Projects
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Status: PUBLISHED
Assigner: NLnet Labs
Published:
Updated: 2026-05-20T12:54:04.538Z
Reserved: 2026-05-07T10:07:51.822Z
Link: CVE-2026-44608
Updated: 2026-05-20T12:52:54.650Z
Status : Analyzed
Published: 2026-05-20T10:16:28.313
Modified: 2026-05-20T22:52:48.303
Link: CVE-2026-44608
OpenCVE Enrichment
Updated: 2026-05-21T15:30:13Z
Ubuntu USN