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THREAT OPS › Threat News › [NVD] CVE-2026-80724 (HIGH 8.8) — In the Linux kernel, the following vulnerability has been resolved: ptp: vmclock: prevent read-only mappings from becoming writable vmclock_miscdev_mmap() rejects writable mappings of the shared vmclock ABI page with -EROFS, but leaves VM_MAYWRITE set. Userspace can map the pa

[NVD] CVE-2026-80724 (HIGH 8.8) — In the Linux kernel, the following vulnerability has been resolved: ptp: vmclock: prevent read-only mappings from becoming writable vmclock_miscdev_mmap() rejects writable mappings of the shared vmclock ABI page with -EROFS, but leaves VM_MAYWRITE set. Userspace can map the pa

mednvdPublished 2026-08-28

CVE-2026-80724 CVSS: 8.8 HIGH Published: 2026-08-28T08:16:58.210

In the Linux kernel, the following vulnerability has been resolved:

ptp: vmclock: prevent read-only mappings from becoming writable

vmclock_miscdev_mmap() rejects writable mappings of the shared vmclock ABI page with -EROFS, but leaves VM_MAYWRITE set. Userspace can map the page read-only and then upgrade it to writable with mpro

Indicators of compromise

CVE-2026-80724cve
CVE-2026-68445cve
CVE-2024-53071cve

Original source: https://nvd.nist.gov/vuln/detail/CVE-2026-80724