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| CVE | Vendors | Products | Updated | CVSS v3.1 |
|---|---|---|---|---|
| CVE-2026-98446 | 1 Linux | 1 Linux Kernel | 2026-10-20 | 4.4 Medium |
| In the Linux kernel, the following vulnerability has been resolved: xfs: don't let hidden_space go negative in xfs_metafile_resv_init LOLLM points out that if the amount of fdblocks that we can reserve for a metadata btree file goes below the space already used by that file, then the hidden_space subtraction can underflow, causing xfs_dec_fdblocks to subtract a huge amount of space. We never want the target to be less than the used sapce, so fix the logic that adjusts dblocks_avail downwards. Also fix an error in the adjacent comment. | ||||
| CVE-2026-98531 | 1 Linux | 1 Linux Kernel | 2026-10-20 | 3.3 Low |
| In the Linux kernel, the following vulnerability has been resolved: ipv6: sr: enforce exact attribute length for SEG6_ATTR_DST In seg6_genl_policy, SEG6_ATTR_DST is defined with .type = NLA_BINARY and .len = sizeof(struct in6_addr). For NLA_BINARY, .len only enforces the maximum payload length and permits shorter payloads (e.g., 0 bytes). When seg6_genl_set_tunsrc() copies sizeof(struct in6_addr) bytes via kmemdup(val, sizeof(*val), GFP_KERNEL), a short SEG6_ATTR_DST attribute triggers a 16-byte out-of-bounds read past skb->tail into uninitialized skb->head memory, which is stored in sdata->tun_src and leaked back to userspace via SEG6_CMD_GET_TUNSRC. Switch SEG6_ATTR_DST in seg6_genl_policy to NLA_POLICY_EXACT_LEN(sizeof(struct in6_addr)) so that generic netlink validation rejects any attribute whose length is not exactly sizeof(struct in6_addr) with -ERANGE. Tested in QEMU against Linux 7.3.0-rc3 by sending a SEG6_CMD_SET_TUNSRC Generic Netlink message with a 0-byte SEG6_ATTR_DST attribute followed by SEG6_CMD_GET_TUNSRC. On the unfixed kernel, SEG6_CMD_SET_TUNSRC succeeds (err = 0) and SEG6_CMD_GET_TUNSRC leaks 16 bytes of uninitialized kernel heap memory (tun_src = 836a61ecc4d25a1042a8d60411cfb378); with this patch applied, SEG6_CMD_SET_TUNSRC is rejected by netlink policy validation with -ERANGE (-34) and tun_src remains zeroed. | ||||
| CVE-2026-108426 | 1 Microsoft | 5 365 Apps, Microsoft Office Ltsc 2021, Microsoft Office Ltsc 2024 and 2 more | 2026-10-20 | 8.8 High |
| Heap-based buffer overflow in Microsoft Office Word allows an unauthorized attacker to execute code over a network. | ||||
| CVE-2026-108428 | 1 Microsoft | 5 365 Apps, Microsoft Office Ltsc 2021, Microsoft Office Ltsc 2024 and 2 more | 2026-10-20 | 8.8 High |
| Heap-based buffer overflow in Microsoft Office Word allows an unauthorized attacker to execute code over a network. | ||||
| CVE-2026-108429 | 1 Microsoft | 5 365 Apps, Microsoft Office Ltsc 2021, Microsoft Office Ltsc 2024 and 2 more | 2026-10-20 | 8.8 High |
| Heap-based buffer overflow in Microsoft Office Word allows an unauthorized attacker to execute code over a network. | ||||
| CVE-2026-108430 | 1 Microsoft | 11 365 Apps, Microsoft 365, Microsoft Office Ltsc 2021 and 8 more | 2026-10-20 | 8.8 High |
| Heap-based buffer overflow in Microsoft Office Word allows an unauthorized attacker to execute code over a network. | ||||
| CVE-2026-108432 | 1 Microsoft | 13 365 Apps, Microsoft 365, Microsoft 365 Apps For Enterprise and 10 more | 2026-10-20 | 8.8 High |
| Heap-based buffer overflow in Microsoft Office Word allows an unauthorized attacker to execute code over a network. | ||||
| CVE-2026-97822 | 1 Microsoft | 28 Windows 10 1607, Windows 10 1809, Windows 10 21h2 and 25 more | 2026-10-20 | 6.5 Medium |
| Out-of-bounds read in DNS Server allows an authorized attacker to disclose information over a network. | ||||
| CVE-2026-97804 | 1 Microsoft | 23 Windows 10 1607, Windows 10 1809, Windows 10 21h2 and 20 more | 2026-10-20 | 7.8 High |
| Heap-based buffer overflow in HID class driver allows an authorized attacker to elevate privileges locally. | ||||
| CVE-2026-72045 | 1 Linux | 1 Linux Kernel | 2026-10-20 | 8.8 High |
| In the Linux kernel, the following vulnerability has been resolved: octeontx2-af: cn10k: restrict VF LMTLINE sharing to its own PF rvu_mbox_handler_lmtst_tbl_setup() uses req->base_pcifunc as a direct index into the LMT map table to read another function's LMTLINE physical base address and copy it into the caller's own LMT map table entry. The mailbox dispatcher authenticates req->hdr.pcifunc from the IRQ source, but req->base_pcifunc is a separate payload field and is not sanitized. Reject the request with -EPERM when a VF caller's base_pcifunc is not a valid function under its own PF. is_pf_func_valid() bounds the FUNC field to the PF's configured VF count, keeping the computed index inside the caller's own slot block. | ||||
| CVE-2026-68287 | 1 Linux | 1 Linux Kernel | 2026-10-20 | 7.5 High |
| In the Linux kernel, the following vulnerability has been resolved: drop_monitor: fix size calculations for 64-bit attributes net_dm_packet_report_fill() and net_dm_hw_packet_report_fill() use nla_put_u64_64bit() to append 64-bit attributes (NET_DM_ATTR_PC and NET_DM_ATTR_TIMESTAMP). On 32-bit architectures without CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS, nla_put_u64_64bit() may append a 4-byte NET_DM_ATTR_PAD attribute for 64-bit alignment. However, net_dm_packet_report_size() and net_dm_hw_packet_report_size() used nla_total_size(sizeof(u64)) instead of nla_total_size_64bit(sizeof(u64)), budgeting 12 bytes instead of up to 16 bytes. This under-estimation of SKB size can lead to an skb_over_panic() when __nla_reserve() or skb_put() is subsequently called. Fix this by using nla_total_size_64bit(sizeof(u64)) in both size calculations. | ||||
| CVE-2026-97840 | 1 Microsoft | 28 Windows 10 1607, Windows 10 1809, Windows 10 21h2 and 25 more | 2026-10-20 | 6.5 Medium |
| Out-of-bounds read in DNS Server allows an authorized attacker to disclose information over a network. | ||||
| CVE-2026-97842 | 1 Microsoft | 28 Windows 10 1607, Windows 10 1809, Windows 10 21h2 and 25 more | 2026-10-20 | 6.5 Medium |
| Out-of-bounds read in DNS Server allows an authorized attacker to disclose information over a network. | ||||
| CVE-2026-64380 | 1 Linux | 1 Linux Kernel | 2026-10-20 | 8.2 High |
| In the Linux kernel, the following vulnerability has been resolved: smb: client: harden POSIX SID length parsing posix_info_sid_size() reads sid[1] to obtain the subauthority count, but its existing boundary check still accepts buffers with only one remaining byte. Require two bytes before reading sid[1] so all client paths that reuse the helper reject truncated POSIX SIDs safely. | ||||
| CVE-2026-97814 | 1 Microsoft | 28 Windows 10 1607, Windows 10 1809, Windows 10 21h2 and 25 more | 2026-10-20 | 9.8 Critical |
| Heap-based buffer overflow in Windows Text Shaping allows an unauthorized attacker to execute code over a network. | ||||
| CVE-2026-63870 | 1 Linux | 1 Linux Kernel | 2026-10-20 | 7.8 High |
| In the Linux kernel, the following vulnerability has been resolved: ieee802154: 6lowpan: only accept IPv6 packets in lowpan_xmit() The aoe driver (or similar) generates a non-IPv6 packet (e.g., ETH_P_AOE) and queues it for transmission via dev_queue_xmit() on a 6LoWPAN interface (configured by the user or test case). Since the packet is not IPv6, the 6LoWPAN header_ops->create function (lowpan_header_create or header_create) returns early without initializing the lowpan_addr_info structure in the skb headroom. In the transmit function (lowpan_xmit), the driver calls lowpan_header (or setup_header) which unconditionally copies and uses the lowpan_addr_info from the headroom, which contains uninitialized data. Fix this by dropping non IPv6 packets. A similar fix is needed in net/bluetooth/6lowpan.c bt_xmit(). | ||||
| CVE-2026-63912 | 1 Linux | 1 Linux Kernel | 2026-10-20 | 9.8 Critical |
| In the Linux kernel, the following vulnerability has been resolved: xfrm: esp: restore combined single-frag length gate The ESP out-of-place fast path appends the trailer in esp_output_head() before esp_output_tail() allocates the destination page frag. The head-side gate currently checks skb->data_len and tailen separately, but the tail code allocates a single destination frag from the combined post-trailer skb->data_len. Reject the page-frag fast path when the combined aligned length exceeds a page. Otherwise skb_page_frag_refill() may fall back to a single page while the destination sg still spans the combined skb->data_len. Restore this combined-length page gate for both IPv4 and IPv6. | ||||
| CVE-2026-17518 | 1 Asus | 1 Router | 2026-10-20 | N/A |
| Buffer Copy without Checking Size of Input in certain ASUS router models allows an adjacent authenticated user to corrupt device operations and cause a denial of service via an HTTP request with input exceeding the expected length. Refer to the ' Security Update for ASUS Router Firmware' section on the ASUS Security Advisory for more information. | ||||
| CVE-2026-72014 | 1 Linux | 1 Linux Kernel | 2026-10-20 | 9.8 Critical |
| In the Linux kernel, the following vulnerability has been resolved: drbd: reject data replies with an out-of-range payload size recv_dless_read() receives a P_DATA_REPLY from a peer into the bio of an outstanding read request. The peer-supplied payload length reaches it as the signed int data_size, and two peer-controlled inputs can make it negative. With a negotiated data-integrity-alg the digest length is subtracted first, so a reply whose payload is smaller than the digest underflows data_size. With no integrity algorithm (the default) data_size is assigned from the unsigned h95/h100 wire length and drbdd() never bounds it for a payload-carrying command, so a length above INT_MAX casts it negative; this path needs no non-default feature. The bio receive loop then computes expect = min_t(int, data_size, bv_len), which is negative, and drbd_recv_all_warn(mapped, expect) receives with a size_t of SIZE_MAX into the first mapped page. The sibling receive path read_in_block() is not affected: it uses an unsigned size and rejects it against DRBD_MAX_BIO_SIZE before receiving. Reject a data reply whose size is negative after the optional digest subtraction, covering both triggers. Impact: a malicious or man-in-the-middle DRBD peer copies attacker-chosen bytes past a bio page in the receiver, corrupting kernel memory. A node that reads from its peer (a diskless node, or read-balancing to the peer) is exposed in the default configuration; data-integrity-alg is not required. | ||||
| CVE-2026-98583 | 1 Linux | 1 Linux Kernel | 2026-10-20 | 4.4 Medium |
| In the Linux kernel, the following vulnerability has been resolved: nfc: nfcmrvl: validate helper command length before pull The firmware download receive path removes the NCI data header and reads the helper command before validating the remaining packet length. A short frame can therefore reach the data access before the malformed packet is rejected. Validate the complete helper command length before stripping the NCI data header. | ||||