CVE-2026-43386— staging: rtl8723bs: fix potential out-of-bounds read in rtw_restruct_wmm_ie
Possible ATT&CK Techniques 1AI
T1203 · Exploitation for Client ExecutionAffected Version Matrix 18
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Linux | Linux | 554c0a3abf216c991c5ebddcdb2c08689ecd290b< 6ff2243d5e05a5239e39d4ba61d96b0ea3bf7259 | affected |
554c0a3abf216c991c5ebddcdb2c08689ecd290b< 12cc6e8f8d4245b7b5a408c6fc8ab1d098d67020 | affected | ||
554c0a3abf216c991c5ebddcdb2c08689ecd290b< 209644e25757c499e1c1f08c071ea0386d4448b6 | affected | ||
554c0a3abf216c991c5ebddcdb2c08689ecd290b< 768f25613a9fe6766d15a4a72979657adfc1c6d8 | affected | ||
554c0a3abf216c991c5ebddcdb2c08689ecd290b< e14a1148f02e8cf1ca380d57e4b95ca36c97f45d | affected | ||
554c0a3abf216c991c5ebddcdb2c08689ecd290b< 4dd2d9cf563c54e09d5f7eacf95c5b8f538b513b | affected | ||
554c0a3abf216c991c5ebddcdb2c08689ecd290b< d97fc1b29513010b60fde874c7f0ba816744e18c | affected | ||
554c0a3abf216c991c5ebddcdb2c08689ecd290b< a75281626fc8fa6dc6c9cc314ee423e8bc45203b | affected | ||
| … +10 more rows | |||
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I. Basic Information for CVE-2026-43386
Vulnerability Information
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Vulnerability Title
staging: rtl8723bs: fix potential out-of-bounds read in rtw_restruct_wmm_ie
Source: NVD (National Vulnerability Database)
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: staging: rtl8723bs: fix potential out-of-bounds read in rtw_restruct_wmm_ie The current code checks 'i + 5 < in_len' at the end of the if statement. However, it accesses 'in_ie[i + 5]' before that check, which can lead to an out-of-bounds read. Move the length check to the beginning of the conditional to ensure the index is within bounds before accessing the array.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Title
Linux kernel 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel存在安全漏洞，该漏洞源于rtw_restruct_wmm_ie中在长度检查前访问in_ie[i + 5]，可能导致越界读取。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
II. Public POCs for CVE-2026-43386
| # | POC Description | Source Link | Shenlong Link |
|---|
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Patches & Fixes for CVE-2026-43386 (8)
Same Patch Batch · Linux · 2026-05-08 · 199 CVEs total
| CVE-2026-43376 | 9.8 CRITICAL | ksmbd: fix use-after-free by using call_rcu() for oplock_info |
| CVE-2026-43414 | 9.8 CRITICAL | scsi: qla2xxx: Completely fix fcport double free |
| CVE-2026-43378 | 9.8 CRITICAL | smb: server: fix use-after-free in smb2_open() |
| CVE-2026-43304 | 9.8 CRITICAL | libceph: define and enforce CEPH_MAX_KEY_LEN |
| CVE-2026-43402 | 9.8 CRITICAL | kthread: consolidate kthread exit paths to prevent use-after-free |
| CVE-2026-43341 | 9.8 CRITICAL | net/ipv6: ioam6: prevent schema length wraparound in trace fill |
| CVE-2026-43379 | 9.8 CRITICAL | ksmbd: fix use-after-free in smb_lazy_parent_lease_break_close() |
| CVE-2026-43465 | 9.8 CRITICAL | net/mlx5e: RX, Fix XDP multi-buf frag counting for striding RQ |
| CVE-2026-43384 | 9.8 CRITICAL | net/tcp-ao: Fix MAC comparison to be constant-time |
| CVE-2026-43383 | 9.4 CRITICAL | net/tcp-md5: Fix MAC comparison to be constant-time |
| CVE-2026-43407 | 9.1 CRITICAL | libceph: Fix potential out-of-bounds access in ceph_handle_auth_reply() |
| CVE-2026-43406 | 9.1 CRITICAL | libceph: prevent potential out-of-bounds reads in process_message_header() |
| CVE-2026-43284 | 8.8 HIGH | xfrm: esp: avoid in-place decrypt on shared skb frags |
| CVE-2026-43334 | 8.8 HIGH | Bluetooth: SMP: force responder MITM requirements before building the pairing response |
| CVE-2026-43403 | 8.8 HIGH | nsfs: tighten permission checks for ns iteration ioctls |
| CVE-2026-43322 | 8.8 HIGH | Bluetooth: hci_sync: Fix UAF in le_read_features_complete |
| CVE-2026-43391 | 8.8 HIGH | nsfs: tighten permission checks for handle opening |
| CVE-2026-43291 | 8.3 HIGH | net: nfc: nci: Fix parameter validation for packet data |
| CVE-2026-43466 | 8.2 HIGH | net/mlx5e: Fix DMA FIFO desync on error CQE SQ recovery |
| CVE-2026-43365 | 8.2 HIGH | xfs: fix undersized l_iclog_roundoff values |
Showing top 20 of 199 CVEs. View all on vendor page → →
IV. Related Vulnerabilities
Same product: Linux
- CVE-2026-46241
spi: mpc52xx: fix use-after-free on registration failure - CVE-2026-46239
media: i2c: ov5647: Fix runtime PM refcount leak in s_ctrl - CVE-2026-46240
media: iris: Fix use-after-free in iris_release_internal_buf - CVE-2026-46238
batman-adv: stop caching unowned originator pointers in BAT - CVE-2026-46237
drm/amdgpu/vcn3: Avoid overflow on msg bound check
Same vendor: Linux
- CVE-2026-46241
spi: mpc52xx: fix use-after-free on registration failure - CVE-2026-46239
media: i2c: ov5647: Fix runtime PM refcount leak in s_ctrl - CVE-2026-46240
media: iris: Fix use-after-free in iris_release_internal_buf - CVE-2026-46238
batman-adv: stop caching unowned originator pointers in BAT - CVE-2026-46237
drm/amdgpu/vcn3: Avoid overflow on msg bound check
V. Comments for CVE-2026-43386
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