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CVE-2026-43387— staging: rtl8723bs: properly validate the data in rtw_get_ie_ex()

Quick assessment

Affected
Linux Linux
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

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_get_ie_ex中未充分验证数据长度，可能导致越界读取。

AI Predicted 7.8 Difficulty: Moderate EPSS 0.12% · P2

Possible ATT&CK Techniques 1 AI

T1203 · Exploitation for Client Execution

Affected Version Matrix 18

VendorProduct Version RangeStatus
Linux Linux 554c0a3abf216c991c5ebddcdb2c08689ecd290b< ac38856092b4c994f94343251b30520bdeb7f475 affected
554c0a3abf216c991c5ebddcdb2c08689ecd290b< 35969c3a208a07cb8642301df5869c34e2db7071 affected
554c0a3abf216c991c5ebddcdb2c08689ecd290b< 8097a48c606a9306281ea7bd73bf2afc97553733 affected
554c0a3abf216c991c5ebddcdb2c08689ecd290b< 740bca8bbdb707c0e4bb11e3316deb2f04fc7ce1 affected
554c0a3abf216c991c5ebddcdb2c08689ecd290b< 821f7d759fb2de33c5e5b0c4981181c4d0c3e9b1 affected
554c0a3abf216c991c5ebddcdb2c08689ecd290b< 6d62fa548387e159a21ea95132c09bfc96d336ed affected
554c0a3abf216c991c5ebddcdb2c08689ecd290b< 9a4cd4c37593cc8b8d28f9a6732b490a8032006a affected
554c0a3abf216c991c5ebddcdb2c08689ecd290b< f0109b9d3e1e455429279d602f6276e34689750a affected
… +10 more rows
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I. Basic Information for CVE-2026-43387

Vulnerability Information
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Vulnerability Title
staging: rtl8723bs: properly validate the data in rtw_get_ie_ex()
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: staging: rtl8723bs: properly validate the data in rtw_get_ie_ex() Just like in commit 154828bf9559 ("staging: rtl8723bs: fix out-of-bounds read in rtw_get_ie() parser"), we don't trust the data in the frame so we should check the length better before acting on it
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
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_get_ie_ex中未充分验证数据长度，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

Vendor Product Affected Versions CPE Subscribe
Linux Linux 554c0a3abf216c991c5ebddcdb2c08689ecd290b ~ ac38856092b4c994f94343251b30520bdeb7f475 -
Linux Linux 4.12 -

II. Public POCs for CVE-2026-43387

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III. Intelligence Information for CVE-2026-43387

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Patches & Fixes for CVE-2026-43387 (8)

Same Patch Batch · Linux · 2026-05-08 · 197 CVEs total

CVE-2026-43384 9.8 CRITICAL net/tcp-ao: Fix MAC comparison to be constant-time
CVE-2026-43341 9.8 CRITICAL net/ipv6: ioam6: prevent schema length wraparound in trace fill
CVE-2026-43304 9.8 CRITICAL libceph: define and enforce CEPH_MAX_KEY_LEN
CVE-2026-43379 9.8 CRITICAL ksmbd: fix use-after-free in smb_lazy_parent_lease_break_close()
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-2026-43465 9.8 CRITICAL net/mlx5e: RX, Fix XDP multi-buf frag counting for striding RQ
CVE-2026-43402 9.8 CRITICAL kthread: consolidate kthread exit paths to prevent use-after-free
CVE-2026-43376 9.8 CRITICAL ksmbd: fix use-after-free by using call_rcu() for oplock_info
CVE-2026-43383 9.4 CRITICAL net/tcp-md5: Fix MAC comparison to be constant-time
CVE-2026-43406 9.1 CRITICAL libceph: prevent potential out-of-bounds reads in process_message_header()
CVE-2026-43407 9.1 CRITICAL libceph: Fix potential out-of-bounds access in ceph_handle_auth_reply()
CVE-2026-43403 8.8 HIGH nsfs: tighten permission checks for ns iteration ioctls
CVE-2026-43334 8.8 HIGH Bluetooth: SMP: force responder MITM requirements before building the pairing response
CVE-2026-43284 8.8 HIGH xfrm: esp: avoid in-place decrypt on shared skb frags
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 197 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2026-43387

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