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CVE-2025-68255— staging: rtl8723bs: fix stack buffer overflow in OnAssocReq 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OnAssocReq IE解析存在栈缓冲区溢出。

CVSS 8.8 · High EPSS 0.37% · P29

Possible ATT&CK Techniques 1 AI

T1203 · Exploitation for Client Execution

Affected Version Matrix 18

VendorProduct Version RangeStatus
Linux Linux 554c0a3abf216c991c5ebddcdb2c08689ecd290b< 49b7806851f93fd342838c93f4f765e0cc5029b0 affected
554c0a3abf216c991c5ebddcdb2c08689ecd290b< 4445adedae770037078803d1ce41f9e88a1944b6 affected
554c0a3abf216c991c5ebddcdb2c08689ecd290b< d129dc2a5d59b4d9cd2cc0b6eeb04df8461199f0 affected
554c0a3abf216c991c5ebddcdb2c08689ecd290b< 34620eb602aa432f090b2b784ee5c5070fb16cf9 affected
554c0a3abf216c991c5ebddcdb2c08689ecd290b< 61871c83259a511980ec2664964cecc69005398b affected
554c0a3abf216c991c5ebddcdb2c08689ecd290b< 25411f5fcf5743131158f337c99c2bbf3f8477f5 affected
554c0a3abf216c991c5ebddcdb2c08689ecd290b< e841d8ea722315b781c4fc5bf4f7670fbca88875 affected
554c0a3abf216c991c5ebddcdb2c08689ecd290b< 6ef0e1c10455927867cac8f0ed6b49f328f8cf95 affected
… +10 more rows
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I. Basic Information for CVE-2025-68255

Vulnerability Information
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Vulnerability Title
staging: rtl8723bs: fix stack buffer overflow in OnAssocReq IE parsing
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: staging: rtl8723bs: fix stack buffer overflow in OnAssocReq IE parsing The Supported Rates IE length from an incoming Association Request frame was used directly as the memcpy() length when copying into a fixed-size 16-byte stack buffer (supportRate). A malicious station can advertise an IE length larger than 16 bytes, causing a stack buffer overflow. Clamp ie_len to the buffer size before copying the Supported Rates IE, and correct the bounds check when merging Extended Supported Rates to prevent a second potential overflow. This prevents kernel stack corruption triggered by malformed association requests.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/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OnAssocReq IE解析存在栈缓冲区溢出。
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 ~ 49b7806851f93fd342838c93f4f765e0cc5029b0 -
Linux Linux 4.12 -

II. Public POCs for CVE-2025-68255

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III. Intelligence Information for CVE-2025-68255

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Other References for CVE-2025-68255 (4)

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

CVE-2025-68301 9.8 CRITICAL net: atlantic: fix fragment overflow handling in RX path
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-2025-68192 9.8 CRITICAL net: usb: qmi_wwan: initialize MAC header offset in qmimux_rx_fixup
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-2025-68226 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-2025-68174 7.8 HIGH amd/amdkfd: enhance kfd process check in switch partition
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-2025-68303 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()
CVE-2025-68183 7.8 HIGH ima: don't clear IMA_DIGSIG flag when setting or removing non-IMA xattr

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-2025-68255

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