CVE Explorer
CVE-2026-52863
In NLnet Labs Unbound 1.25.0 up to and including 1.25.1, a fix that makes the 'respip' and 'dns64' modules work together, creates a shallow copy of the view name in effect that could lead to memory corruption if the owner of the original view name is jostled out when Unbound is under pressure. Unbound needs to be configured with one of 'respip'/'rpz' modules, together with a module that can attach subqueries (respip CNAME redirection, dns64, subnetcache) and a configured 'access-control-view' wh
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
0
Affected products and versions
1 source assertion{"defaultStatus":"unaffected","product":"Unbound","vendor":"NLnet Labs","versions":[{"lessThan":"1.25.2","status":"affected","version":"1.25.0","versionType":"semver"}]}
- cve_program_cvelist_v5affectedurn:baitaphish:normalized-source-record:v2:4b103deaeabd8f3df3e6ba8d4202e79fd20008e671b566d5cf636e9e5a8bb03f · sha256:52e0ad7760492d58… · /containers/cna/affected/0
Provider-owned CVSS observations
1 source assertion{"metric":{"baseScore":5.9,"baseSeverity":"MEDIUM","vectorString":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H","version":"3.1"},"metric_type":"cvssV3_1"}
- cve_program_cvelist_v5cvssurn:baitaphish:normalized-source-record:v2:4b103deaeabd8f3df3e6ba8d4202e79fd20008e671b566d5cf636e9e5a8bb03f · sha256:52e0ad7760492d58… · /containers/cna/metrics/0/cvssV3_1
CWE assertions
1 source assertion{"cweId":"CWE-416","description":"CWE-416: Use After Free","lang":"en","type":"CWE"}
- cve_program_cvelist_v5cweurn:baitaphish:normalized-source-record:v2:4b103deaeabd8f3df3e6ba8d4202e79fd20008e671b566d5cf636e9e5a8bb03f · sha256:52e0ad7760492d58… · /containers/cna/problemTypes/0/descriptions/0
Source references
1 source assertion{"tags":["vendor-advisory"],"url":"https://www.nlnetlabs.nl/downloads/unbound/CVE-2026-52863.txt"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:4b103deaeabd8f3df3e6ba8d4202e79fd20008e671b566d5cf636e9e5a8bb03f · sha256:52e0ad7760492d58… · /containers/cna/references/0
Attribution and limitations
- CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →
Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.