[UPDATE] [medium] Linux Kernel: Multiple vulnerabilities
An attacker can exploit multiple vulnerabilities in the Linux Kernel to corrupt memory, trigger a denial-of-service condition, manipulate data or disclose confidential information.
CSIRTS triage
- What
- Multiple vulnerabilities in the Linux Kernel allow memory corruption, denial-of-service, data manipulation, and information disclosure.
- Who is affected
- Systems running affected Linux Kernel versions.
- Urgency
- Medium severity; not currently exploited but affects core OS stability and security.
- Action
- Apply kernel security updates from your distribution when available.
AI-assisted analysis generated from the source advisory — verify against the original.
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Details
Original advisory: https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2026-2659
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-2026-645660.15% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 5% of all EPSS-scored CVEs.
- Low exploitation riskCVE-2026-645670.16% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 5% of all EPSS-scored CVEs.
- Low exploitation riskCVE-2026-645680.16% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 5% of all EPSS-scored CVEs.
- Low exploitation riskCVE-2026-645690.16% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 5% of all EPSS-scored CVEs.
- Low exploitation riskCVE-2026-645700.19% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 8% of all EPSS-scored CVEs.
- Low exploitation riskCVE-2026-645710.16% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 5% of all EPSS-scored CVEs.
- Low exploitation riskCVE-2026-645720.19% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 8% of all EPSS-scored CVEs.
- Low exploitation riskCVE-2026-645730.16% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 5% of all EPSS-scored CVEs.
- Low exploitation riskCVE-2026-645740.16% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 5% of all EPSS-scored CVEs.
- Low exploitation riskCVE-2026-645750.15% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 5% of all EPSS-scored CVEs.
Referenced CVEs
| CVE | CSIRTS overview | External |
|---|---|---|
| CVE-2026-64566 | coverage & exploitation status | NVD · CVE.org |
| CVE-2026-64567 | coverage & exploitation status | NVD · CVE.org |
| CVE-2026-64568 | coverage & exploitation status | NVD · CVE.org |
| CVE-2026-64569 | coverage & exploitation status | NVD · CVE.org |
| CVE-2026-64570 | coverage & exploitation status | NVD · CVE.org |
| CVE-2026-64571 | coverage & exploitation status | NVD · CVE.org |
| CVE-2026-64572 | coverage & exploitation status | NVD · CVE.org |
| CVE-2026-64573 | coverage & exploitation status | NVD · CVE.org |
| CVE-2026-64574 | coverage & exploitation status | NVD · CVE.org |
| CVE-2026-64575 | coverage & exploitation status | NVD · CVE.org |
| CVE-2026-64576 | coverage & exploitation status | NVD · CVE.org |
| CVE-2026-64577 | coverage & exploitation status | NVD · CVE.org |
| CVE-2026-64578 | coverage & exploitation status | NVD · CVE.org |
| CVE-2026-64579 | coverage & exploitation status | NVD · CVE.org |
| CVE-2026-64580 | coverage & exploitation status | NVD · CVE.org |
| CVE-2026-64581 | coverage & exploitation status | NVD · CVE.org |
Same CVEs, other sources
How other CERTs, PSIRTs and databases cover the vulnerabilities in this advisory.
- unknownDSA-6415-1 linux - security updatedebian
- unknownCVE-2026-64581: In the Linux kernel, the following vulnerability has been resolved: xfrm: fix sk_dst_cache dou…nvd
- unknownCVE-2026-64580: In the Linux kernel, the following vulnerability has been resolved: xfrm6: clear dst.dev on er…nvd
- unknownCVE-2026-64579: In the Linux kernel, the following vulnerability has been resolved: xfrm: policy: preallocate …nvd
- unknownCVE-2026-64578: In the Linux kernel, the following vulnerability has been resolved: ksmbd: validate compound r…nvd
- unknownCVE-2026-64577: In the Linux kernel, the following vulnerability has been resolved: gtp: check skb_pull_data()…nvd
- unknownCVE-2026-64576: In the Linux kernel, the following vulnerability has been resolved: nexthop: initialize extack…nvd
- unknownCVE-2026-64575: In the Linux kernel, the following vulnerability has been resolved: bpf: tcp: fix double sock …nvd
- unknownCVE-2026-64574: In the Linux kernel, the following vulnerability has been resolved: wifi: mac80211: tear down …nvd
- unknownCVE-2026-64573: In the Linux kernel, the following vulnerability has been resolved: Bluetooth: qca: fix NVM ta…nvd
- unknownCVE-2026-64572: In the Linux kernel, the following vulnerability has been resolved: ipv4: fib: free fib_alias …nvd
- unknownCVE-2026-64571: In the Linux kernel, the following vulnerability has been resolved: wifi: p54: validate RX fra…nvd
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.
- medium[UPDATE] [medium] Linux Kernel: Multiple vulnerabilitiescert-bund · 2026-08-06
- medium[NEW] [medium] Linux Kernel: Multiple Vulnerabilitiescert-bund · 2026-08-06
- high[UPDATE] [high] Linux Kernel: Vulnerability allows privilege escalationcert-bund · 2026-08-06
- high[UPDATE] [high] Linux Kernel: Multiple vulnerabilities enable denial of servicecert-bund · 2026-08-06
- high[UPDATE] [high] Linux Kernel: Multiple vulnerabilitiescert-bund · 2026-08-06
- medium[UPDATE] [medium] Linux Kernel: Vulnerability allows privilege escalationcert-bund · 2026-08-06
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