[UPDATE] [medium] Linux Kernel: Multiple vulnerabilities allow unspecified attack

CSIRTS triage

What

A local attacker can exploit multiple vulnerabilities to carry out an unspecified attack, potentially causing a denial-of-service condition or manipulating data.

Who is affected

Local deployments of the Linux Kernel.

Urgency

Remediation is medium urgency due to the potential for denial of service and data manipulation.

Action

Upgrade to the latest version of the Linux Kernel.

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

Details

Source

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

Severity

medium

Published

2026-07-09

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-2026-2031

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-2026-529080.13% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 3% of all scored CVEs.
• Low exploitation riskCVE-2026-529090.12% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 2% of all scored CVEs.
• Low exploitation riskCVE-2026-529100.10% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 1% of all scored CVEs.
• Low exploitation riskCVE-2026-529110.36% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 28% of all scored CVEs.

Referenced CVEs

Same CVEs, other sources

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

• unknownMultiple vulnerabilities in Microsoft Azure Linux (July 10, 2026)cert-fr-avis
• unknownMultiple vulnerabilities in Microsoft Azure Linux (July 09, 2026)cert-fr-avis
• unknownDebian Linux Kernel Multiple Vulnerabilitieshkcert
• unknownMultiple vulnerabilities in the Debian Linux kernel (June 26, 2026)cert-fr-avis
• unknownDSA-6355-1 linux - security updatedebian
• highCVE-2026-52911: ksmbd: scope conn->binding slowpath to bound sessions onlymsrc
• highCVE-2026-52909: ip6_vti: set netns_immutable on the fallback device.msrc
• highCVE-2026-52908: RDMA: During rereg_mr ensure that REREG_ACCESS is compatiblemsrc
• highCVE-2026-52910: bpf: Free reuseport cBPF prog after RCU grace period.msrc

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.

• unknownCVE-2026-53363: In the Linux kernel, the following vulnerability has been resolved: xfrm: iptfs: preserve shar…nvd · 2026-07-10
• medium[UPDATE] [medium] Linux Kernel: Multiple vulnerabilities allow denial of servicecert-bund · 2026-07-10
• medium[UPDATE] [medium] Linux Kernel: Multiple vulnerabilities allow denial of servicecert-bund · 2026-07-10
• medium[UPDATE] [medium] Linux Kernel: Multiple vulnerabilities allow unspecified attackcert-bund · 2026-07-10
• high[UPDATE] [high] Linux Kernel: Multiple vulnerabilitiescert-bund · 2026-07-10
• high[UPDATE] [high] Linux Kernel: Multiple vulnerabilitiescert-bund · 2026-07-10

More from CERT-Bund (BSI) Security Advisories

• medium[NEW] [medium] DENX U-Boot: Multiple vulnerabilities allow execution of arbitrary code and DoS2026-07-10
• medium[NEW] [medium] Samsung Android: Multiple vulnerabilities2026-07-10
• medium[UPDATE] [medium] Linux Kernel: Multiple vulnerabilities allow denial of service2026-07-10
• medium[UPDATE] [medium] Linux Kernel: Multiple vulnerabilities allow unspecified attack2026-07-10
• medium[UPDATE] [medium] Linux Kernel: Multiple vulnerabilities allow denial of service2026-07-10