Out-of-bounds Read in ntpsec

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-102486
StatePUBLISHED
AssignerGitLab
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-10-21 16:17:14 UTC
Updated2026-10-21 16:17:14 UTC
DescriptionOut-of-bounds read in NTS extension field parsing in NTPsec ntpd 1.1.4 through 1.2.5 allows a remote attacker to crash the daemon via an NTS Authenticator and Encrypted Extension Fields (AEEF) field with an oversized nonce length.

Risk And Classification

Primary CVSS: v3.1 7.5 HIGH from [email protected]

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Problem Types: CWE-125 | CWE-125 CWE-125: Out-of-bounds Read

VersionSourceTypeScoreSeverityVector
3.1[email protected]Secondary7.5HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
3.1CNACVSS7.5HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA NTPsec Ntpsec affected 1.1.4 1.2.6 semver Not specified

References

ReferenceSourceLinkTags
gitlab.com/NTPsec/ntpsec/-/work_items/891 [email protected] gitlab.com
gitlab.com/NTPsec/ntpsec/-/commit/7cc079387 [email protected] gitlab.com
gitlab.com/NTPsec/ntpsec/-/work_items/895 [email protected] gitlab.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Vendor Comments And Credit

Discovery Credit

CNA: afldl; Tristan Madani; Kimi Security Team <[email protected]> (en)

Additional Advisory Data

Solutions

CNA: Upgrade to version 1.2.6

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