CVE-2026-53215

highCVSS 7.8covered by 19 sourcesfirst seen 2026-06-09

Several security issues were discovered in the Linux kernel. An attacker could possibly use these to compromise the system. This update corrects flaws in the following subsystems: - x86 architecture; - InfiniBand drivers; - Network drivers; - Mellanox network drivers; - File systems infrastructure; - IPv4 networking; - Network traffic control; - TCP network protocol; - B.A.T.M.A.N. meshing protocol; - IPv6 networking; - Multipath TCP; - Netfilter; - RxRPC session sockets; - SCTP protocol; - SMC sockets; (CVE-2026-43083, CVE-2026-43197, CVE-2026-43198, CVE-2026-43465, CVE-2026-46242, CVE-2026-46325, CVE-2026-46331, CVE-2026-52914, CVE-2026-52924, CVE-2026-52931, CVE-2026-53151, CVE-2026-53176, CVE-2026-53212, CVE-2026-53215, CVE-2026-53225, CVE-2026-53228, CVE-2026-53359)

CSIRTS triage

What: The vulnerability involves the refill of RX buffers before XDP or skb use.
Who is affected: Deployments using the affected net stack.
Urgency: Remediation is urgent due to the high severity rating of 7.8.
Action: Apply the patch for CVE-2026-53215.

AI-assisted analysis generated from the source advisory — verify against the original.

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Exploitation outlook

Low exploitation risk0.50% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 41% of all EPSS-scored CVEs.

Advisory coverage (19)

unknownUSN-8630-5: Linux kernel (Raspberry Pi) vulnerabilitiesubuntu · 2026-08-25
lowUSN-8661-2: Linux kernel (Low Latency) vulnerabilitiesubuntu · 2026-08-21
unknownUSN-8664-1: Linux kernel (NVIDIA BaseOS) vulnerabilitiesubuntu · 2026-08-20
unknownUSN-8663-1: Linux kernel (NVIDIA) vulnerabilitiesubuntu · 2026-08-20
unknownUSN-8630-4: Linux kernel (AWS) vulnerabilitiesubuntu · 2026-08-20
unknownUSN-8661-1: Linux kernel vulnerabilitiesubuntu · 2026-08-20
unknownUSN-8660-1: Linux kernel vulnerabilitiesubuntu · 2026-08-20
unknownUSN-8630-3: Linux kernel (Oracle) vulnerabilitiesubuntu · 2026-08-18
unknownUSN-8629-3: Linux kernel (HWE) vulnerabilitiesubuntu · 2026-08-18
unknownUSN-8631-4: Linux kernel (Azure CVM) vulnerabilitiesubuntu · 2026-08-17
unknownUSN-8629-2: Linux kernel (AWS) vulnerabilitiesubuntu · 2026-08-17
unknownUSN-8631-3: Linux kernel (NVIDIA Tegra IGX) vulnerabilitiesubuntu · 2026-08-13
unknownUSN-8637-1: Linux kernel (OEM) vulnerabilitiesubuntu · 2026-08-13
unknownUSN-8631-2: Linux kernel (Oracle) vulnerabilitiesubuntu · 2026-08-13
unknownUSN-8630-2: Linux kernel vulnerabilitiesubuntu · 2026-08-13
unknownUSN-8631-1: Linux kernel vulnerabilitiesubuntu · 2026-08-12
unknownUSN-8630-1: Linux kernel vulnerabilitiesubuntu · 2026-08-12
unknownUSN-8629-1: Linux kernel vulnerabilitiesubuntu · 2026-08-12
highCVE-2026-53215: net: mvpp2: refill RX buffers before XDP or skb usemsrc · 2026-06-09

External references

NVD record for CVE-2026-53215

CVE.org record

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