DEBIAN-CVE-2026-18321

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Source
https://security-tracker.debian.org/tracker/CVE-2026-18321
Import Source
https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-18321.json
JSON Data
https://api.osv.dev/v1/vulns/DEBIAN-CVE-2026-18321
Upstream
  • CVE-2026-18321
Published
2026-07-31T19:17:08Z
Modified
2026-09-14T17:02:38Z
Severity
  • 4.7 (Medium) CVSS_V3 - CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
Summary
[none]
Details

Buffer overflow in NTPsec's Zyfer refclock allows local attacker to crash ntpd

References

Affected packages

Debian:12 / ntpsec

Package

Name
ntpsec
Purl
pkg:deb/debian/ntpsec?arch=source&distro=bookworm

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

1.*
1.2.2+dfsg1-1
1.2.2+dfsg1-1+deb12u1
1.2.2+dfsg1-2
1.2.2+dfsg1-3
1.2.2+dfsg1-4
1.2.3+dfsg1-1
1.2.3+dfsg1-2
1.2.3+dfsg1-3
1.2.3+dfsg1-4
1.2.3+dfsg1-5
1.2.3+dfsg1-6
1.2.3+dfsg1-7
1.2.3+dfsg1-8
1.2.4+dfsg-1
1.2.5+dfsg-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-18321.json"

Debian:13 / ntpsec

Package

Name
ntpsec
Purl
pkg:deb/debian/ntpsec?arch=source&distro=trixie

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

1.*
1.2.3+dfsg1-8
1.2.4+dfsg-1
1.2.5+dfsg-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-18321.json"

Debian:14 / ntpsec

Package

Name
ntpsec
Purl
pkg:deb/debian/ntpsec?arch=source&distro=forky

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
1.2.5+dfsg-1

Affected versions

1.*
1.2.3+dfsg1-8
1.2.4+dfsg-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-18321.json"