CVE-2023-36660

The OCB feature in libnettle in Nettle 3.9 before 3.9.1 allows memory corruption.

9.8 Critical

The OCB feature in libnettle in Nettle 3.9 before 3.9.1 allows memory corruption.

Attack profile

How easy it is to exploit

Attack vector: Network
Complexity: Low
Privileges needed: None
User interaction: None

What an attacker can affect

Confidentiality: High
Integrity: High
Availability: High

Exploit likelihood

1.03%Up 1.0 points since Jun 26, 2023

What each source reports

NVD Score used 9.8

The OCB feature in libnettle in Nettle 3.9 before 3.9.1 allows memory corruption.

Record: CVE-2023-36660
CVSS 3.1: 9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness: CWE-787
Updated: 2026-11-02

CVE List No score

The OCB feature in libnettle in Nettle 3.9 before 3.9.1 allows memory corruption.

Record: CVE-2023-36660
Updated: 2026-11-02

EUVDEUVD-2023-40604 No score

The OCB feature in libnettle in Nettle 3.9 before 3.9.1 allows memory corruption.

Record: EUVD-2023-40604
Updated: 2026-11-02

GitHub AdvisoriesGHSA-whjr-4v2f-wjp4 9.8

The OCB feature in libnettle in Nettle 3.9 before 3.9.1 allows memory corruption.

The OCB feature in libnettle in Nettle 3.9 before 3.9.1 allows memory corruption.

Record: GHSA-whjr-4v2f-wjp4
CVSS 3.1: 9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness: CWE-787
Updated: 2026-11-02

OSVBELL-CVE-2023-36660 9.8

CVE-2023-36660 does not affect BellSoft software

Record: BELL-CVE-2023-36660
CVSS 3.1: 9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Updated: 2026-11-02

OSV No score

The OCB feature in libnettle in Nettle 3.9 before 3.9.1 allows memory corruption.

Record: CVE-2023-36660
Updated: 2026-11-02

OSVopenSUSE-SU-2024:13024-1 No score

libhogweed6-3.9.1-2.1 on GA media

These are all security issues fixed in the libhogweed6-3.9.1-2.1 package on the GA media of openSUSE Tumbleweed.

Record: openSUSE-SU-2024:13024-1
Updated: 2026-11-02

Affected products

History

History
Recorded	Changed	Sources
Nov 2, 2026	first indexed	CVE List, EUVD, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2023-36660 is a critical vulnerability (CVSS 9.8) in Nettle Project Nettle, published June 25, 2023. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.03%, the 63rd percentile. No source names a fixed version.

References

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