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CVE-2025-68254— staging: rtl8723bs: fix out-of-bounds read in OnBeacon ESR IE parsing

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rtl8723bs中OnBeacon ESR IE解析存在越界读取。

CVSS 7.1 · High EPSS 0.28% · P19

Possible ATT&CK Techniques 1 AI

T1203 · Exploitation for Client Execution

Affected Version Matrix 16

VendorProduct Version RangeStatus
Linux Linux 554c0a3abf216c991c5ebddcdb2c08689ecd290b< c03cb111628924827351e19baa5b073e9b0d723d affected
554c0a3abf216c991c5ebddcdb2c08689ecd290b< bb5940193d813449540d8d3a82abc045be41f48a affected
554c0a3abf216c991c5ebddcdb2c08689ecd290b< c173ce97d3f0f0c0fefa39139d6d04ba60b5db22 affected
554c0a3abf216c991c5ebddcdb2c08689ecd290b< d1ab7f9cee22e7b8a528da9ac953e4193b96cda5 affected
554c0a3abf216c991c5ebddcdb2c08689ecd290b< 38292407c2bb5b2b3131aaace4ecc7a829b40b76 affected
554c0a3abf216c991c5ebddcdb2c08689ecd290b< bf323db1d883c209880bd92f3b12503e3531c3fc affected
554c0a3abf216c991c5ebddcdb2c08689ecd290b< 502ddcc405b69fa92e0add6c1714d654504f6fd7 affected
4.12 affected
… +8 more rows
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I. Basic Information for CVE-2025-68254

Vulnerability Information
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Vulnerability Title
staging: rtl8723bs: fix out-of-bounds read in OnBeacon ESR IE parsing
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: staging: rtl8723bs: fix out-of-bounds read in OnBeacon ESR IE parsing The Extended Supported Rates (ESR) IE handling in OnBeacon accessed *(p + 1 + ielen) and *(p + 2 + ielen) without verifying that these offsets lie within the received frame buffer. A malformed beacon with an ESR IE positioned at the end of the buffer could cause an out-of-bounds read, potentially triggering a kernel panic. Add a boundary check to ensure that the ESR IE body and the subsequent bytes are within the limits of the frame before attempting to access them. This prevents OOB reads caused by malformed beacon frames.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H
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rtl8723bs中OnBeacon ESR IE解析存在越界读取。
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 ~ c03cb111628924827351e19baa5b073e9b0d723d -
Linux Linux 4.12 -

II. Public POCs for CVE-2025-68254

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III. Intelligence Information for CVE-2025-68254

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Other References for CVE-2025-68254 (4)

Same Patch Batch · Linux · 2025-12-16 · 156 CVEs total

CVE-2025-68192 9.8 CRITICAL net: usb: qmi_wwan: initialize MAC header offset in qmimux_rx_fixup
CVE-2025-68263 9.8 CRITICAL ksmbd: ipc: fix use-after-free in ipc_msg_send_request
CVE-2025-68315 9.8 CRITICAL f2fs: fix to detect potential corrupted nid in free_nid_list
CVE-2025-68285 9.8 CRITICAL libceph: fix potential use-after-free in have_mon_and_osd_map()
CVE-2025-68284 9.8 CRITICAL libceph: prevent potential out-of-bounds writes in handle_auth_session_key()
CVE-2025-40350 9.8 CRITICAL net/mlx5e: RX, Fix generating skb from non-linear xdp_buff for striding RQ
CVE-2025-68301 9.8 CRITICAL net: atlantic: fix fragment overflow handling in RX path
CVE-2025-68304 8.8 HIGH Bluetooth: hci_core: lookup hci_conn on RX path on protocol side
CVE-2025-68256 8.8 HIGH staging: rtl8723bs: fix out-of-bounds read in rtw_get_ie() parser
CVE-2025-68255 8.8 HIGH staging: rtl8723bs: fix stack buffer overflow in OnAssocReq IE parsing
CVE-2025-68226 8.8 HIGH smb: client: fix incomplete backport in cfids_invalidation_worker()
CVE-2025-40362 8.8 HIGH ceph: fix multifs mds auth caps issue
CVE-2025-68314 8.8 HIGH drm/msm: make sure last_fence is always updated
CVE-2025-68250 8.2 HIGH hung_task: fix warnings caused by unaligned lock pointers
CVE-2025-68171 7.8 HIGH x86/fpu: Ensure XFD state on signal delivery
CVE-2025-68175 7.8 HIGH media: nxp: imx8-isi: Fix streaming cleanup on release
CVE-2025-68179 7.8 HIGH s390: Disable ARCH_WANT_OPTIMIZE_HUGETLB_VMEMMAP
CVE-2025-68294 7.8 HIGH io_uring/net: ensure vectored buffer node import is tied to notification
CVE-2025-68303 7.8 HIGH platform/x86: intel: punit_ipc: fix memory corruption
CVE-2025-68234 7.8 HIGH io_uring/cmd_net: fix wrong argument types for skb_queue_splice()

Showing top 20 of 156 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2025-68254

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