CVE-2023-52340
highpriority · track · 30EPSS 0.009 · 61 %ileDEEUNLRUUSEPSS · scored 2026-10-27
The IPv6 implementation in the Linux kernel before 6.3 has a net/ipv6/route.c max_size threshold that can be consumed easily, e.g., leading to a denial of service (network is unreachable errors) when IPv6 packets are sent in a loop via a raw socket.
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 6.9–7.5
ssvc
A stakeholder decision — act, attend, or track — from exploitation and impact.
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (48)
Products and version ranges known to be affected.
- Dell PowerProtect Data Domain Management Centerall versionscert_bundDEcpe:/a:dell:powerprotect_data_domain_management_center:-
- NetApp ActiveIQ Unified Manager for VMware vSphereall versionscert_bundDEcpe:/a:netapp:active_iq_unified_manager:for_vmware_vsphere
advisories (4)
Vendor and ecosystem advisories describing this.
- NCSC-2024-0339Kwetsbaarheden verholpen in Microsoft MarinerNL2024-08-13csaf · ncsc_nlNL
Microsoft heeft kwetsbaarheden verholpen in Mariner (Azure Linux).
- SSA-613116SSA-613116: Multiple Vulnerabilities in Third-Party Components in SINEC OS before V3.12025-08-12csaf · siemens_psirtDE
SINEC OS before V3.1 contains third-party components with multiple vulnerabilities. Siemens has released new versions for the affected products and recommends to update to the latest versions.
- WID-SEC-W-2024-1529Linux Kernel: Schwachstelle ermöglicht Denial of ServiceDeutsch2024-07-04csaf · cert_bundDE
Ein entfernter, anonymer Angreifer kann eine Schwachstelle im Linux Kernel ausnutzen, um einen Denial of Service Angriff durchzuführen.
- ICSA-25-226-15Siemens SINEC OS2025-08-12icsa · cisa_csaf_otUS
SINEC OS before V3.1 contains third-party components with multiple vulnerabilities. Siemens has released new versions for the affected products and recommends to update to the latest versions.
also known as (10)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (12)
External citations — patches, advisories, analysis.
- https://cdn.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.3cnnvd
- https://cxsecurity.com/cveshow/CVE-2023-52340/cnnvd
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit?id=af6d10345ca76670c1b7c37799f0d5576ccef277cnnvd
- https://vigilance.fr/vulnerability/Linux-kernel-denial-of-service-via-ICMPv6-43761cnnvd
- https://www.kernel.org/Patchcnnvd
- https://cdn.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.3enisa_euvd
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit?id=af6d10345ca76670c1b7c37799f0d5576ccef277enisa_euvd
- https://cdn.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.3Mailing ListPatchnvd
Attackers weaponise vulnerabilities like this against internet-exposed services. See what is exposed on your perimeter with a free passive scan.
Free scan