CVE-2025-68256 | staging: rtl8723bs: fix out-of-bounds read in rtw_get_ie() parser

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 + len) does not exceed the limit before accepting the IE or advancing to the next element. This prevents OOB reads and ensures the parser terminates safely on malformed frames.

Published: 2025-12-16 Last update: 2026-04-18 Assigner: 416baaa9-dc9f-4396-8d5f-8c081fb06d67 Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67

Conclusion & alert: CVE-2025-68256 is rated Low Risk (18.1/100): low exploitation likelihood (EPSS 0.06%). Mandatory action: Low composite risk—no urgent action required; patch on your normal maintenance cycle and revisit priority if CVSS or EPSS increases.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2025-68256

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-05-26 0.04% 0.06% +0.01%
2 2026-05-14 0.05% 0.04% -0.01%
3 2026-02-18 0.05%

Full EPSS history (4 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2025-68256

CVSS metrics for this CVE.

No CVSS data in dataset for this CVE.

Weakness enumeration for CVE-2025-68256

GitHub Security Advisory for CVE-2025-68256

GHSA-x52f-2whg-fhgm · Severity: unknown — In the Linux kernel, the following vulnerability has been resolved: staging: rtl8723bs: fix out...

OS Trackers for CVE-2025-68256

vendor priority summary link
debian not yet assigned CVE-2025-68256 not yet assigned priority: Debian including 2 source packages (linux, linux-6.1), 6 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5, open 1. https://security-tracker.debian.org/tracker/CVE-2025-68256
redhat medium https://access.redhat.com/security/cve/CVE-2025-68256
suse medium CVE-2025-68256 severity moderate: SUSE including 417 source package names (13.2-9.1:libsystemd0-254.23-1.1, 13.2-9.1:libudev1-254.23-1.1, …), 889 product×package rows across 128 product lines (Container suse/sl-micro/6.0/baremetal-os-container, Container suse/sl-micro/6.0/base-os-container, … (128 product lines)): Fixed 376, Known Not Affected 257, Known Affected 231, First Fixed 25. https://www.suse.com/security/cve/CVE-2025-68256/
ubuntu medium CVE-2025-68256 medium priority: Ubuntu including 157 source packages (linux, linux-allwinner-5.19, …), 1405 status rows across 9 suites (bionic, focal, jammy, noble, plucky, questing, trusty, upstream, xenial): DNE 1010, ignored 182, released 117, needed 83, pending 13. https://ubuntu.com/security/CVE-2025-68256

Affected software / configurations for CVE-2025-68256

Vendor Product Version Raw CPE
No affected products in dataset.

References for CVE-2025-68256

cvelogic Threat Intelligence