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CVE ID :CVE-2026-45840 Published : May 27, 2026, 11:16 a.m. | 1 hour, 15 minutes ago Description :In the Linux kernel, the following vulnerability has been resolved: openvswitch: cap upcall PID array size and pre-size vport replies The vport netlink reply helpers allocate a fixed-size skb with nlmsg_new(NLMSG_DEFAULT_SIZE, ...) but serialize the full upcall PID array via ovs_vport_get_upcall_portids(). Since ovs_vport_set_upcall_portids() accepts any non-zero multiple of sizeof(u32) with no upper bound, a CAP_NET_ADMIN user can install a PID array large enough to overflow the reply buffer, causing nla_put() to fail with -EMSGSIZE and hitting BUG_ON(err genl_family_rcv_msg_doit (net/netlink/genetlink.c:1116) genl_rcv_msg (net/netlink/genetlink.c:1194) netlink_rcv_skb (net/netlink/af_netlink.c:2550) genl_rcv (net/netlink/genetlink.c:1219) netlink_unicast (net/netlink/af_netlink.c:1344) netlink_sendmsg (net/netlink/af_netlink.c:1894) __sys_sendto (net/socket.c:2206) __x64_sys_sendto (net/socket.c:2209) do_syscall_64 (arch/x86/entry/syscall_64.c:63) entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) Kernel panic - not syncing: Fatal exception Reject attempts to set more PIDs than nr_cpu_ids in ovs_vport_set_upcall_portids(), and pre-compute the worst-case reply size in ovs_vport_cmd_msg_size() based on that bound, similar to the existing ovs_dp_cmd_msg_size(). nr_cpu_ids matches the cap already used by the per-CPU dispatch configuration on the datapath side (ovs_dp_cmd_fill_info() serialises at most nr_cpu_ids PIDs), so the two sides stay consistent. Severity: 0.0 | NA Visit the link for more details, such as CVSS details, affected products, timeline, and more...

CVE ID :CVE-2026-45841 Published : May 27, 2026, 11:16 a.m. | 1 hour, 15 minutes ago Description :In the Linux kernel, the following vulnerability has been resolved: netfilter: nfnetlink_osf: fix divide-by-zero in OSF_WSS_MODULO nf_osf_match_one() computes ctx->window % f->wss.val in the OSF_WSS_MODULO branch with no guard for f->wss.val == 0. A CAP_NET_ADMIN user can add such a fingerprint via nfnetlink; a subsequent matching TCP SYN divides by zero and panics the kernel. Reject the bogus fingerprint in nfnl_osf_add_callback() above the per-option for-loop. f->wss is per-fingerprint, not per-option, so the check must run regardless of f->opt_num (including 0). Also reject wss.wc >= OSF_WSS_MAX; nf_osf_match_one() already treats that as "should not happen". Crash: Oops: divide error: 0000 [#1] SMP KASAN NOPTI RIP: 0010:nf_osf_match_one (net/netfilter/nfnetlink_osf.c:98) Call Trace: nf_osf_match (net/netfilter/nfnetlink_osf.c:220) xt_osf_match_packet (net/netfilter/xt_osf.c:32) ipt_do_table (net/ipv4/netfilter/ip_tables.c:348) nf_hook_slow (net/netfilter/core.c:622) ip_local_deliver (net/ipv4/ip_input.c:265) ip_rcv (include/linux/skbuff.h:1162) __netif_receive_skb_one_core (net/core/dev.c:6181) process_backlog (net/core/dev.c:6642) __napi_poll (net/core/dev.c:7710) net_rx_action (net/core/dev.c:7945) handle_softirqs (kernel/softirq.c:622) Severity: 0.0 | NA Visit the link for more details, such as CVSS details, affected products, timeline, and more...

CVE ID :CVE-2026-45842 Published : May 27, 2026, 11:16 a.m. | 1 hour, 15 minutes ago Description :In the Linux kernel, the following vulnerability has been resolved: slip: reject VJ receive packets on instances with no rstate array slhc_init() accepts rslots == 0 as a valid configuration, with the documented meaning of 'no receive compression'. In that case the allocation loop in slhc_init() is skipped, so comp->rstate stays NULL and comp->rslot_limit stays 0 (from the kzalloc of struct slcompress). The receive helpers do not defend against that configuration. slhc_uncompress() dereferences comp->rstate[x] when the VJ header carries an explicit connection ID, and slhc_remember() later assigns cs = &comp->rstate[...] after only comparing the packet's slot number to comp->rslot_limit. Because rslot_limit is 0, slot 0 passes the range check, and the code dereferences a NULL rstate. The configuration is reachable in-tree through PPP. PPPIOCSMAXCID stores its argument in a signed int, and (val >> 16) uses arithmetic shift. Passing 0xffff0000 therefore sign-extends to -1, so val2 + 1 is 0 and ppp_generic.c ends up calling slhc_init(0, 1). Because /dev/ppp open is gated by ns_capable(CAP_NET_ADMIN), the whole path is reachable from an unprivileged user namespace. Once the malformed VJ state is installed, any inbound VJ-compressed or VJ-uncompressed frame that selects slot 0 crashes the kernel in softirq context: Oops: general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 [#1] SMP KASAN NOPTI KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007] RIP: 0010:slhc_uncompress (drivers/net/slip/slhc.c:519) Call Trace: ppp_receive_nonmp_frame (drivers/net/ppp/ppp_generic.c:2466) ppp_input (drivers/net/ppp/ppp_generic.c:2359) ppp_async_process (drivers/net/ppp/ppp_async.c:492) tasklet_action_common (kernel/softirq.c:926) handle_softirqs (kernel/softirq.c:623) run_ksoftirqd (kernel/softirq.c:1055) smpboot_thread_fn (kernel/smpboot....

CVE ID :CVE-2026-45837 Published : May 27, 2026, 11:16 a.m. | 1 hour, 15 minutes ago Description :In the Linux kernel, the following vulnerability has been resolved: bpf: Fix use-after-free in arena_vm_close on fork arena_vm_open() only bumps vml->mmap_count but never registers the child VMA in arena->vma_list. The vml->vma always points at the parent VMA, so after parent munmap the pointer dangles. If the child then calls bpf_arena_free_pages(), zap_pages() reads the stale vml->vma triggering use-after-free. Fix this by preventing the arena VMA from being inherited across fork with VM_DONTCOPY, and preventing VMA splits via the may_split callback. Also reject mremap with a .mremap callback returning -EINVAL. A same-size mremap(MREMAP_FIXED) on the full arena VMA reaches copy_vma() through the following path: check_prep_vma() - returns 0 early: new_len == old_len skips VM_DONTEXPAND check prep_move_vma() - vm_start == old_addr and vm_end == old_addr + old_len so may_split is never called move_vma() copy_vma_and_data() copy_vma() vm_area_dup() - copies vm_private_data (vml pointer) vm_ops->open() - bumps vml->mmap_count vm_ops->mremap() - returns -EINVAL, rollback unmaps new VMA The refcount ensures the rollback's arena_vm_close does not free the vml shared with the original VMA. Severity: 0.0 | NA Visit the link for more details, such as CVSS details, affected products, timeline, and more...

A flaw was found in Samba’s certificate auto-enrollment Group Policy handling. When certificate auto-enrollment is enabled, Samba may retrieve a CA certificate over an unencrypted HTTP connection and install it into the local trust store without proper verification. An attacker with the ability to intercept or redirect network traffic could exploit this behavior to supply a malicious certificate authority certificate, potentially allowing interception or spoofing of trusted communications.

Vulnerabilities in Slican telephone exchanges software Vulnerabilities in Slican telephone exchanges software CVE ID CVE-2026-35087 Publication date 27 May 2026 Vendor Slican Product IPx, CCT-1668, MAC-6400, CXS-0424, NCP Vulnerable versions All before 6. ... Read more Published Date: May 27, 2026 (1 day, 21 hours ago) Vulnerabilities has been mentioned in this article.

Gitea Vulnerability Exposes Private Container Images without Authentication Cybersecurity researchers have disclosed a security flaw in Gitea, an open-source, self-hosted platform for version control, that allows unauthenticated remote attackers to pull private container imag ... Read more Published Date: May 27, 2026 (1 day, 21 hours ago) Vulnerabilities has been mentioned in this article.

CVE ID :CVE-2026-42761 Published : May 27, 2026, 11:16 a.m. | 1 hour, 15 minutes ago Description :Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection') vulnerability in RealMag777 Active Products Tables for WooCommerce profit-products-tables-for-woocommerce allows Blind SQL Injection.This issue affects Active Products Tables for WooCommerce: from n/a through Severity: 9.3 | CRITICAL Visit the link for more details, such as CVSS details, affected products, timeline, and more...

CVE ID :CVE-2026-42762 Published : May 27, 2026, 11:16 a.m. | 1 hour, 15 minutes ago Description :Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in e4jvikwp VikBooking Hotel Booking Engine & PMS vikbooking allows DOM-Based XSS.This issue affects VikBooking Hotel Booking Engine & PMS: from n/a through Severity: 7.1 | HIGH Visit the link for more details, such as CVSS details, affected products, timeline, and more...

CVE ID :CVE-2026-42755 Published : May 27, 2026, 11:16 a.m. | 1 hour, 15 minutes ago Description :Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection') vulnerability in RealMag777 TableOn posts-table-filterable allows Blind SQL Injection.This issue affects TableOn: from n/a through Severity: 9.3 | CRITICAL Visit the link for more details, such as CVSS details, affected products, timeline, and more...

CVE ID :CVE-2026-42751 Published : May 27, 2026, 11:16 a.m. | 1 hour, 15 minutes ago Description :Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in wpdevelop Booking Manager booking-manager allows Stored XSS.This issue affects Booking Manager: from n/a through Severity: 6.5 | MEDIUM Visit the link for more details, such as CVSS details, affected products, timeline, and more...

CVE ID :CVE-2026-42756 Published : May 27, 2026, 11:16 a.m. | 1 hour, 15 minutes ago Description :Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') vulnerability in Ludwig You QuickWebP – Compress / Optimize Images & Convert WebP | SEO Friendly quickwebp allows Path Traversal.This issue affects QuickWebP – Compress / Optimize Images & Convert WebP | SEO Friendly: from n/a through Severity: 9.9 | CRITICAL Visit the link for more details, such as CVSS details, affected products, timeline, and more...