CVE-2026-12245

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Source
https://cve.org/CVERecord?id=CVE-2026-12245
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-12245.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-12245
Downstream
Published
2026-06-25T07:16:45.080Z
Modified
2026-07-15T06:01:19.461375Z
Severity
  • 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
Summary
[none]
Details

NSD from version 4.13.0 has a heap use-after-free bug in logging errors on TLS connections, causing a crash of the server process, which can be triggered trivially by sending a DNS query over a DoT connection, and closing the connection without reading the response.

References

Affected packages

Git / github.com/nlnetlabs/nsd

Affected ranges

Type
GIT
Repo
https://github.com/nlnetlabs/nsd
Events
Introduced
559013e8371cb645cd4150d41401823ad3789124
Fixed
fc930b88cb4f628defae9835449065945bda7ddc
Database specific 
{
    "cpe": "cpe:2.3:a:nlnetlabs:nsd:*:*:*:*:*:*:*:*",
    "source": "CPE_RANGE",
    "extracted_events": [
        {
            "introduced": "4.13.0"
        },
        {
            "fixed": "4.14.3"
        }
    ]
}

Affected versions

Other
NSD_4_13_0_REL
NSD_4_14_0_RC1
NSD_4_14_1_RC1
NSD_4_14_1_REL
NSD_4_14_2_RC1
NSD_4_14_2_REL
list

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-12245.json"