[UPDATE] [high] Linux Kernel: Multiple vulnerabilities allow denial of service

CSIRTS triage

What

An attacker can exploit multiple vulnerabilities in the Linux Kernel to carry out a denial of service attack or an unspecified attack.

Who is affected

Deployments of the Linux Kernel are affected by these vulnerabilities.

Urgency

Remediation is high urgency due to the severity of denial of service attacks.

Action

Apply the latest patches for the Linux Kernel to address these vulnerabilities.

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

Details

Source

CERT-Bund (BSI) Security Advisories (DE · national-cert · site)

Severity

high

Published

2026-07-28

Exploitation

Not in CISA KEV at last sync

Language

Machine-translated to English — verify against the original

Original advisory: https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2025-0975

Exploitation outlook

EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.

• Low exploitation riskCVE-2025-378020.32% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 25% of all EPSS-scored CVEs.
• Low exploitation riskCVE-2025-378030.21% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 11% of all EPSS-scored CVEs.
• Low exploitation riskCVE-2025-378050.19% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 9% of all EPSS-scored CVEs.
• Low exploitation riskCVE-2025-378060.19% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 9% of all EPSS-scored CVEs.
• Low exploitation riskCVE-2025-378070.19% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 9% of all EPSS-scored CVEs.
• Low exploitation riskCVE-2025-378080.20% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 10% of all EPSS-scored CVEs.
• Low exploitation riskCVE-2025-378090.19% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 9% of all EPSS-scored CVEs.
• Low exploitation riskCVE-2025-378180.18% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 7% of all EPSS-scored CVEs.
• Low exploitation riskCVE-2025-378190.20% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 10% of all EPSS-scored CVEs.

Referenced CVEs

Same CVEs, other sources

How other CERTs, PSIRTs and databases cover the vulnerabilities in this advisory.

• high[UPDATE] [high] Dell PowerProtect Data Domain OS: Multiple vulnerabilitiescert-bund
• mediumCVE-2025-37800: driver core: fix potential NULL pointer dereference in dev_uevent()msrc
• highCVE-2025-37807: bpf: Fix kmemleak warning for percpu hashmapmsrc
• mediumCVE-2025-37801: spi: spi-imx: Add check for spi_imx_setupxfer()msrc
• mediumCVE-2025-37826: scsi: ufs: core: Add NULL check in ufshcd_mcq_compl_pending_transfer()msrc
• mediumCVE-2025-37834: mm/vmscan: don't try to reclaim hwpoison foliomsrc
• mediumCVE-2025-37820: xen-netfront: handle NULL returned by xdp_convert_buff_to_frame()msrc
• unknownMultiple vulnerabilities in Ubuntu Linux kernel (July 31, 2026)cert-fr-avis
• unknownUSN-8547-2: Linux kernel (Azure FIPS) vulnerabilitiesubuntu
• unknownMultiple vulnerabilities in the Ubuntu Linux kernel (July 17, 2026)cert-fr-avis
• unknownUSN-8547-1: Linux kernel vulnerabilitiesubuntu
• unknownexploitedUSN-8528-1: Linux kernel (Xilinx ZynqMP) vulnerabilitiesubuntu

Recent advisories for Linux Kernel

A cluster of recent advisories against the same product widens the attack surface — attackers routinely chain freshly published CVEs on one product, so review these together.

• unknownUSN-8659-4: Linux kernel (Oracle) vulnerabilityubuntu · 2026-08-26
• unknownUSN-8666-2: Linux kernel (Azure) vulnerabilitiesubuntu · 2026-08-25
• unknownUSN-8630-5: Linux kernel (Raspberry Pi) vulnerabilitiesubuntu · 2026-08-25
• unknownUSN-8658-3: Linux kernel vulnerabilitiesubuntu · 2026-08-25
• unknownUSN-8643-4: Linux kernel vulnerabilitiesubuntu · 2026-08-25
• unknownUSN-8659-3: Linux kernel (Azure) vulnerabilityubuntu · 2026-08-25

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