Linux has 2,768 CVEs on record between 2021 and 2026. Disclosure cadence is accelerating: 1706 in the last 90 days against 308 in the 90 before. The busiest recent month was September 2026 with 1571. The median CVSS is 7.8 (high), with 153 rated critical. 0% have been exploited in the wild, in line with the corpus average. The median gap from publication to a KEV listing is 255 days (6 cases). The dominant weakness classes are CWE-416 (154) and CWE-476 (112). Most affected products: Linux (1902), linux_kernel (866).
CVEs per month
Last 12 months, by publish date
- Exploited share
- 0% vs 1% corpus
- Median CVSS
- 7.8
- Publish → KEV
- 255 d median(6)
- Last 90 days
- 1706 prev 308
Weakness classes
Products
- Linux 1902
- linux_kernel 866
Worst active — by depth score
CVE-2025-39682Critical· 9.8In the Linux kernel, the following vulnerability has been resolved: tls: fix handling of zero-length records on the rx_list Each recvmsg() call must process either - only contiguous DATA records (any number of them) - one non-DATA re…79CVE-2026-53266High· 8.8In the Linux kernel, the following vulnerability has been resolved: netfilter: bridge: make ebt_snat ARP rewrite writable The ebtables SNAT target keeps the Ethernet source address rewrite behind skb_ensure_writable(skb, 0)74CVE-2023-52440Critical· 9.8In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix slub overflow in ksmbd_decode_ntlmssp_auth_blob() If authblob->SessionKey.Length is bigger than session key size(CIFS_KEY_SIZE), slub overflow can happen in…70CVE-2023-2008High· 8.2A flaw was found in the Linux kernel's udmabuf device driver, within a fault handler70CVE-2022-0995High· 7.8An out-of-bounds (OOB) memory write flaw was found in the Linux kernel’s watch_queue event notification subsystem70
Linux vulnerabilities
CVEs affecting Linux, newest first. Open any entry for full detail, references, and exploit status.
2768 CVEsRSS
CVE-2026-23425High· 8.8In the Linux kernel, the following vulnerability has been resolved: KVM: arm64: Fix ID register initialization for non-protected pKVM guests In protected mode, the hypervisor maintains a separate instance of the `kvm` structure for eac…
In the Linux kernel, the following vulnerability has been resolved: KVM: arm64: Fix ID register initialization for non-protected pKVM guests In protected mode, the hypervisor maintains a separate instance of the `kvm` structure for eac…
CVE-2026-23472Medium· 5.5In the Linux kernel, the following vulnerability has been resolved: serial: core: fix infinite loop in handle_tx() for PORT_UNKNOWN uart_write_room() and uart_write() behave inconsistently when xmit_buf is NULL (which happens for PORT_…
In the Linux kernel, the following vulnerability has been resolved: serial: core: fix infinite loop in handle_tx() for PORT_UNKNOWN uart_write_room() and uart_write() behave inconsistently when xmit_buf is NULL (which happens for PORT_…
CVE-2026-31402Critical· 9.8PoCIn the Linux kernel, the following vulnerability has been resolved: nfsd: fix heap overflow in NFSv4.0 LOCK replay cache The NFSv4.0 replay cache uses a fixed 112-byte inline buffer (rp_ibuf[NFSD4_REPLAY_ISIZE]) to store encoded operat…
In the Linux kernel, the following vulnerability has been resolved: nfsd: fix heap overflow in NFSv4.0 LOCK replay cache The NFSv4.0 replay cache uses a fixed 112-byte inline buffer (rp_ibuf[NFSD4_REPLAY_ISIZE]) to store encoded operat…
CVE-2026-23414High· 7.5tls: Purge async_hold in tls_decrypt_async_wait()
In the Linux kernel, the following vulnerability has been resolved: tls: Purge async_hold in tls_decrypt_async_wait() The async_hold queue pins encrypted input skbs while the AEAD engine references their scatterlist data. Once tls_decr…
CVE-2026-23401Medium· 5.5In the Linux kernel, the following vulnerability has been resolved: KVM: x86/mmu: Drop/zap existing present SPTE even when creating an MMIO SPTE When installing an emulated MMIO SPTE, do so *after* dropping/zapping the existing SPTE (i…
In the Linux kernel, the following vulnerability has been resolved: KVM: x86/mmu: Drop/zap existing present SPTE even when creating an MMIO SPTE When installing an emulated MMIO SPTE, do so *after* dropping/zapping the existing SPTE (i…
CVE-2026-23399Medium· 5.5In the Linux kernel, the following vulnerability has been resolved: nf_tables: nft_dynset: fix possible stateful expression memleak in error path If cloning the second stateful expression in the element via GFP_ATOMIC fails, then the f…
In the Linux kernel, the following vulnerability has been resolved: nf_tables: nft_dynset: fix possible stateful expression memleak in error path If cloning the second stateful expression in the element via GFP_ATOMIC fails, then the f…
CVE-2026-23398NonePoCicmp: fix NULL pointer dereference in icmp_tag_validation()
In the Linux kernel, the following vulnerability has been resolved: icmp: fix NULL pointer dereference in icmp_tag_validation() icmp_tag_validation() unconditionally dereferences the result of rcu_dereference(inet_protos[proto]) withou…
CVE-2026-23397Nonenfnetlink_osf: validate individual option lengths in fingerprints
In the Linux kernel, the following vulnerability has been resolved: nfnetlink_osf: validate individual option lengths in fingerprints nfnl_osf_add_callback() validates opt_num bounds and string NUL-termination but does not check indivi…
CVE-2026-23351High· 7.8netfilter: nft_set_pipapo: split gc into unlink and reclaim phase
In the Linux kernel, the following vulnerability has been resolved: netfilter: nft_set_pipapo: split gc into unlink and reclaim phase Yiming Qian reports Use-after-free in the pipapo set type: Under a large number of expired elements…
CVE-2026-23343Nonexdp: produce a warning when calculated tailroom is negative
In the Linux kernel, the following vulnerability has been resolved: xdp: produce a warning when calculated tailroom is negative Many ethernet drivers report xdp Rx queue frag size as being the same as DMA write size. However, the only …
CVE-2026-23340High· 7.8net: sched: avoid qdisc_reset_all_tx_gt() vs dequeue race for lockless qdiscs
In the Linux kernel, the following vulnerability has been resolved: net: sched: avoid qdisc_reset_all_tx_gt() vs dequeue race for lockless qdiscs When shrinking the number of real tx queues, netif_set_real_num_tx_queues() calls qdisc_r…
CVE-2026-23335NoneRDMA/irdma: Fix kernel stack leak in irdma_create_user_ah()
In the Linux kernel, the following vulnerability has been resolved: RDMA/irdma: Fix kernel stack leak in irdma_create_user_ah() struct irdma_create_ah_resp { // 8 bytes, no padding __u32 ah_id; // offset 0 - SET (ure…
CVE-2026-23321Nonemptcp: pm: in-kernel: always mark signal+subflow endp as used
In the Linux kernel, the following vulnerability has been resolved: mptcp: pm: in-kernel: always mark signal+subflow endp as used Syzkaller managed to find a combination of actions that was generating this warning: msk->pm.local_add…
CVE-2026-23319Nonebpf: Fix a UAF issue in bpf_trampoline_link_cgroup_shim
In the Linux kernel, the following vulnerability has been resolved: bpf: Fix a UAF issue in bpf_trampoline_link_cgroup_shim The root cause of this bug is that when 'bpf_link_put' reduces the refcount of 'shim_link->link.link' to zero, …
CVE-2026-23304Noneipv6: fix NULL pointer deref in ip6_rt_get_dev_rcu()
In the Linux kernel, the following vulnerability has been resolved: ipv6: fix NULL pointer deref in ip6_rt_get_dev_rcu() l3mdev_master_dev_rcu() can return NULL when the slave device is being un-slaved from a VRF. All other callers dea…
CVE-2026-23300Nonenet: ipv6: fix panic when IPv4 route references loopback IPv6 nexthop
In the Linux kernel, the following vulnerability has been resolved: net: ipv6: fix panic when IPv4 route references loopback IPv6 nexthop When a standalone IPv6 nexthop object is created with a loopback device (e.g., "ip -6 nexthop add…
CVE-2026-23293Nonenet: vxlan: fix nd_tbl NULL dereference when IPv6 is disabled
In the Linux kernel, the following vulnerability has been resolved: net: vxlan: fix nd_tbl NULL dereference when IPv6 is disabled When booting with the 'ipv6.disable=1' parameter, the nd_tbl is never initialized because inet6_init() ex…
CVE-2026-23290Nonenet: usb: pegasus: validate USB endpoints
In the Linux kernel, the following vulnerability has been resolved: net: usb: pegasus: validate USB endpoints The pegasus driver should validate that the device it is probing has the proper number and types of USB endpoints it is expec…
CVE-2026-23287Noneirqchip/sifive-plic: Fix frozen interrupt due to affinity setting
In the Linux kernel, the following vulnerability has been resolved: irqchip/sifive-plic: Fix frozen interrupt due to affinity setting PLIC ignores interrupt completion message for disabled interrupt, explained by the specification: …
CVE-2026-23284Nonenet: ethernet: mtk_eth_soc: Reset prog ptr to old_prog in case of error in mtk_xdp_setup()
In the Linux kernel, the following vulnerability has been resolved: net: ethernet: mtk_eth_soc: Reset prog ptr to old_prog in case of error in mtk_xdp_setup() Reset eBPF program pointer to old_prog and do not decrease its ref-count if …
CVE-2026-23392High· 7.8netfilter: nf_tables: release flowtable after rcu grace period on error
In the Linux kernel, the following vulnerability has been resolved: netfilter: nf_tables: release flowtable after rcu grace period on error Call synchronize_rcu() after unregistering the hooks from error path, since a hook that already…
CVE-2026-23391High· 7.8netfilter: xt_CT: drop pending enqueued packets on template removal
In the Linux kernel, the following vulnerability has been resolved: netfilter: xt_CT: drop pending enqueued packets on template removal Templates refer to objects that can go away while packets are sitting in nfqueue refer to: - helpe…
CVE-2026-23381Nonenet: bridge: fix nd_tbl NULL dereference when IPv6 is disabled
In the Linux kernel, the following vulnerability has been resolved: net: bridge: fix nd_tbl NULL dereference when IPv6 is disabled When booting with the 'ipv6.disable=1' parameter, the nd_tbl is never initialized because inet6_init() e…
CVE-2026-23379Nonenet/sched: ets: fix divide by zero in the offload path
In the Linux kernel, the following vulnerability has been resolved: net/sched: ets: fix divide by zero in the offload path Offloading ETS requires computing each class' WRR weight: this is done by averaging over the sums of quanta as '…
CVE-2026-23378High· 7.8net/sched: act_ife: Fix metalist update behavior
In the Linux kernel, the following vulnerability has been resolved: net/sched: act_ife: Fix metalist update behavior Whenever an ife action replace changes the metalist, instead of replacing the old data on the metalist, the current if…
CVE-2026-23370Noneplatform/x86: dell-wmi-sysman: Don't hex dump plaintext password data
In the Linux kernel, the following vulnerability has been resolved: platform/x86: dell-wmi-sysman: Don't hex dump plaintext password data set_new_password() hex dumps the entire buffer, which contains plaintext password data, including…
CVE-2026-23368Nonenet: phy: register phy led_triggers during probe to avoid AB-BA deadlock
In the Linux kernel, the following vulnerability has been resolved: net: phy: register phy led_triggers during probe to avoid AB-BA deadlock There is an AB-BA deadlock when both LEDS_TRIGGER_NETDEV and LED_TRIGGER_PHY are enabled: [ 1…
CVE-2026-23365Nonenet: usb: kalmia: validate USB endpoints
In the Linux kernel, the following vulnerability has been resolved: net: usb: kalmia: validate USB endpoints The kalmia driver should validate that the device it is probing has the proper number and types of USB endpoints it is expecti…
CVE-2026-23359Nonebpf: Fix stack-out-of-bounds write in devmap
In the Linux kernel, the following vulnerability has been resolved: bpf: Fix stack-out-of-bounds write in devmap get_upper_ifindexes() iterates over all upper devices and writes their indices into an array without checking bounds. Als…
CVE-2026-23385Medium· 5.5In the Linux kernel, the following vulnerability has been resolved: netfilter: nf_tables: clone set on flush only Syzbot with fault injection triggered a failing memory allocation with GFP_KERNEL which results in a WARN splat: iter.er…
In the Linux kernel, the following vulnerability has been resolved: netfilter: nf_tables: clone set on flush only Syzbot with fault injection triggered a failing memory allocation with GFP_KERNEL which results in a WARN splat: iter.er…