SECUFOCUSNOW
Home›CVE index›CVE-2025-68256
Review reviewHigh

CVE-2025-68256

Linux

In the Linux kernel, the following vulnerability has been resolved: staging: rtl8723bs: fix out-of-bounds read in rtw_get_ie() parser The Information Element (IE) parser rtw_get_ie() trusted the length byte of each IE without validating that the IE body (len bytes after the 2-byte header) fits inside the remaining frame buffer. A malformed frame can advertise an IE length larger than the available data, causing the parser to increment its pointer beyond the buffer end. This results in out-of-bounds reads or, depending on the pattern, an infinite loop. Fix by validating that (offset + 2 + le...

CVSS
8.8
EPSS
0.25%
17.0% percentile
CISA KEV
Not listed
Published
2025.12.17
PRIORITY ASSESSMENT

Review review

The CVSS severity warrants an early asset and exposure review.

Known exploitationNot established by KEV
Exploit probability0.25%
Technical severityCVSS 8.8

Vulnerability overview

In the Linux kernel, the following vulnerability has been resolved: staging: rtl8723bs: fix out-of-bounds read in rtw_get_ie() parser The Information Element (IE) parser rtw_get_ie() trusted the length byte of each IE without validating that the IE body (len bytes after the 2-byte header) fits inside the remaining frame buffer. A malformed frame can advertise an IE length larger than the available data, causing the parser to increment its pointer beyond the buffer end. This results in out-of-bounds reads or, depending on the pattern, an infinite loop. Fix by validating that (offset + 2 + le...

Affected product and versions

Product
Linux
Affected versions
>= 554c0a3abf216c991c5ebddcdb2c08689ecd290b < 9829c6e1b2e4180fd18315252ad6faeab6128076, >= 554c0a3abf216c991c5ebddcdb2c08689ecd290b < b977eb31802817f4a37da95bf16bfdaa1eeb5fc2, >= 554c0a3abf216c991c5ebddcdb2c08689ecd290b < 30c558447e90935f0de61be181bbcedf75952e00, >= 554c0a3abf216c991c5ebddcdb2c08689ecd290b < a54e2b2db1b7de2e008b4f62eec35aaefcc663c5, >= 554c0a3abf216c991c5ebddcdb2c08689ecd290b < df191dd9f4c7249d98ada55634fa8ac19089b8cb, >= 554c0a3abf216c991c5ebddcdb2c08689ecd290b < c0d93d69e1472ba75b78898979b90a98ba2a2501, >= 554c0a3abf216c991c5ebddcdb2c08689ecd290b < 154828bf9559b9c8421fc2f0d7f7f76b3683aaed, >= 4.12
Fixed versions
No verified fixed-version field is available yet

Recommended response sequence

Confirm exposure before applying a vendor-supported change.

Full remediation guide
  1. 1
    Identify

    Confirm that Linux and an affected version are present.

  2. 2
    Prioritize

    Combine exploitation signals with asset exposure and business criticality.

  3. 3
    Remediate

    Follow the vendor advisory or supported update path and preserve rollback options.

  4. 4
    Verify

    Recheck the version, service health, access paths, and relevant logs.

Technical data

CVSS vector
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CWE
Not available