Memory-management flaw in the Linux kernel VFS layer allows a local user with handle-lookup privileges to leak disconnected directory dentries by calling open_by_handle_at() on uncached inodes, eventually producing a 'Busy inodes after unmount' condition and unreclaimed kernel memory. The bug surfaces when reconnect_one() fails to find the target dentry and creates a replacement that is not flagged as disconnected, so dput() never immediately reclaims it - a regression exposed by commit f1ee616214cb, which stopped tracking most disconnected dentries on sb->s_anon. There is no public exploit identified at time of analysis, EPSS is low (0.19%, 9th percentile), and this is not in CISA KEV.
Kernel NULL pointer dereference in the Linux USB gadget ACM function (f_acm) allows a local privileged operator to crash the kernel after a USB gadget bind/unbind cycle. After unbind, acm->notify_req is left stale; if a subsequent bind fails, the shared error path frees the stale request and dereferences a NULL ep->ops->free_request pointer in usb_ep_free_request(), producing a fatal oops. Tagged as a Denial of Service issue; EPSS is low (0.19%, 9th percentile), no public exploit is identified, and it is not listed in CISA KEV.
Local denial of service in the Linux kernel USB gadget NCM function driver (f_ncm) allows a privileged local user managing a USB peripheral-mode gadget to crash the kernel via a NULL pointer dereference. After a bind/unbind cycle leaves ncm->notify_req stale, a subsequent failing bind reaches a unified error path that frees the stale request, dereferencing ep->ops->free_request on a NULL endpoint. Tagged as Denial of Service; no public exploit identified at time of analysis and EPSS is low (0.19%).
Local denial-of-service in the Linux kernel's ixgbevf driver (Intel 10G SR-IOV virtual function driver) arises from broken mailbox API negotiation between PF and VF drivers. Since API 1.4/1.5/1.6, VF-specific features (IPsec offload, ESX enhanced mailbox) were bolted on without a feature-negotiation mechanism, causing crashes when the VF driver assumes support the underlying PF/kernel ixgbe driver does not actually implement. The fix introduces a new mailbox op so the VF queries the PF for supported features before enabling IPsec or ESX-specific paths. No public exploit identified at time of analysis; EPSS is low (0.19%, 9th percentile) and there is no KEV listing.
Local memory corruption in the Linux kernel's DRM GPU scheduler (drm/sched) stems from a double free in drm_sched_job_add_resv_dependencies(), where a dma_fence reference that drm_sched_job_add_dependency() already consumed on its failure path is released a second time when the backing xarray fails to expand. Any local user able to submit GPU jobs on an affected kernel can trigger the flaw, leading to kernel memory corruption and denial of service. There is no public exploit identified at time of analysis, EPSS is low (0.19%), and it is not listed in CISA KEV.
Denial of service in the Linux kernel's USB gadget RNDIS function driver (f_rndis) lets a local privileged user crash the kernel via a NULL pointer dereference. After a bind/unbind cycle leaves rndis->notify_req stale, a subsequently failing bind reaches a unified error path that calls free_request on the stale request, dereferencing ep->ops->free_request on freed/NULL state. Tagged as Denial of Service; no public exploit is identified, EPSS is low (0.19%, 9th percentile), and it is not on CISA KEV.
Denial of service in the Linux kernel USB gadget CDC ECM function driver (f_ecm) allows a local privileged operator to crash the kernel via a NULL pointer dereference. After a USB gadget bind/unbind cycle, ecm->notify_req is left stale; if a later bind attempt fails, the shared error path tries to free the stale request and dereferences ep->ops->free_request through a NULL endpoint pointer. No public exploit identified at time of analysis and the practical impact is a kernel crash rather than the full confidentiality/integrity loss implied by the assigned 7.8 CVSS score.
Denial of service in the Tenda AC8 dual-band gigabit router (hardware revision v03.03.10.01) allows a remote attacker to crash the device by sending a single crafted packet to its UPnP service, triggering a stack-based buffer overflow (CWE-121). The flaw requires no authentication or user interaction per the CVSS vector (PR:N/UI:N) and impacts availability only (A:H, no confidentiality/integrity impact). Publicly available exploit material exists via a researcher GitHub repository, though the issue is not listed in CISA KEV and carries a modest EPSS score of 0.39% (31st percentile).
Denial of service in the Linux kernel's NFS server (NFSD) allows a pNFS client to crash the host by sending a LAYOUTCOMMIT operation against a FlexFiles-type layout, for which NFSD previously defined no proc_layoutcommit handler. Any system exporting files over pNFS with the FlexFiles layout driver is affected until patched. This is a stability/availability bug (no confirmed data compromise); no public exploit identified at time of analysis and it is not listed in CISA KEV, with a low EPSS of 0.20% (10th percentile).
Use-after-free memory corruption in X.Org X server's Xkb extension allows local authenticated attackers to achieve high confidentiality impact, low integrity impact, and high availability impact (CVSS 7.3) through improper resource cleanup during client disconnection. The vulnerability affects Red Hat Enterprise Linux distributions with multiple security advisories released (RHSA-2025:19432 through RHSA-2025:22055). EPSS data not provided, but the local attack vector (AV:L) and low complexity (AC:L) indicate exploitation requires authenticated local access. No CISA KEV listing or public POC identified at time of analysis.
Local privilege escalation in X.Org X server's Xkb extension affects RHEL-family distributions, allowing authenticated users to corrupt memory or crash the X server via integer overflow in XkbSetCompatMap(). Attack requires local access with low-privilege credentials. EPSS data not available; no CISA KEV listing indicates targeted rather than widespread exploitation. Red Hat has released patches across multiple RHEL versions (RHSA-2025:19432 through RHSA-2025:22055).
Use-after-free in X.Org X server and Xwayland during Present extension notification processing allows local authenticated users to achieve arbitrary code execution or denial of service. The flaw affects core display server components across multiple Linux distributions, with Red Hat confirming patches through 15 security advisories (RHSA-2025:19432 through RHSA-2025:22055). CVSS 7.3 reflects high integrity and availability impact with low confidentiality impact. No active exploitation confirmed (not in CISA KEV). EPSS data not provided, but the local attack vector and authentication requirement reduce remote exploitation risk despite the severity of potential impact.
Out-of-bounds memory read in the Linux kernel's hfsplus filesystem driver (fixed in 6.17-rc series) allows a local user to leak adjacent slab memory and crash the system when the kernel parses a maliciously crafted HFS+ volume. The flaw lives in hfsplus_strcasecmp() during B-tree catalog record comparison and is reached through ordinary path lookup on a mounted HFS+ image. No public exploit identified at time of analysis, and EPSS is low (0.20%, 10th percentile), consistent with a local, filesystem-parsing memory-safety bug rather than a remotely weaponizable one.