Exploitation ongoing with high activity in latest observed window (2 mentions)
Recommended action window: Immediate (within 24h)
NVD description
In the Linux kernel, the following vulnerability has been resolved: tap: fix stack info leak in tap_ioctl() SIOCGIFHWADDR In the SIOCGIFHWADDR path, tap_ioctl() copies 16 bytes of an uninitialised on-stack struct sockaddr_storage to userspace via ifr_hwaddr, but netif_get_mac_address() only writes sa_family and dev->addr_len (6 for Ethernet) bytes, leaving sa_data[6..13] uninitialised. Those 8 trailing bytes leak kernel stack contents; SIOCGIFHWADDR on a macvtap chardev returns kernel .text and direct-map pointers, defeating KASLR. Initialise ss at declaration.
Priority
LOW
Exploitation
ACTIVE
PoC
NONE
Patch
AVAILABLE
Momentum
NONE
If you run products in this scope, you should treat this CVE as relevant to your environment.
1 version affected across 1 product
Some increased actor activities are shown targeting Linux Kernel (CVE-2026-52937) https://vuldb.com/vuln/373199/cti
Post summary
The text reports increased actor activity targeting the Linux Kernel CVE‑2026‑52937, suggesting active exploitation in the wild, though it lacks detailed technical or PoC information.
The severity is increased for this new vulnerability affecting Linux Kernel (CVE-2026-52937) https://vuldb.com/vuln/373199
Post summary
The post states that the severity for CVE-2026‑52937 has increased and provides a link to a vulnerability database, but it offers no technical, exploit, or mitigation details.
5 of 5 entries
| Part | Vendor | Product | Version | Target SW | Target HW |
|---|---|---|---|---|---|
| OS | linux | linux_kernel | - | - | - |
| OS | linux | linux_kernel | 7.1 | - | - |
| OS | linux | linux_kernel | 7.1 | - | - |
| OS | linux | linux_kernel | 7.1 | - | - |
| OS | linux | linux_kernel | 7.1 | - | - |