CVE-2026-74648

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Source
https://cve.org/CVERecord?id=CVE-2026-74648
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-74648.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-74648
Downstream
Published
2026-08-22T15:32:24.858Z
Modified
2026-08-27T11:30:54.967313369Z
Severity
  • 7.8 (High) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
Summary
staging: rtl8723bs: validate monitor transmit frame lengths
Details

In the Linux kernel, the following vulnerability has been resolved:

staging: rtl8723bs: validate monitor transmit frame lengths

rtwcfg80211monitorifxmit_entry() removes the radiotap header and then reads the 802.11 frame control field without checking that a base 802.11 header remains.

The data path also pulls the calculated 802.11, QoS and SNAP header span before confirming that the skb contains it. A truncated frame can therefore cause out-of-bounds reads or leave insufficient data for the Ethernet address writes.

Reject frames that do not contain the base 802.11 header and data frames that do not contain their complete calculated header span.

Database specific 
{
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/74xxx/CVE-2026-74648.json"
}
References

Affected packages

Git / git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git

Affected ranges

Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
554c0a3abf216c991c5ebddcdb2c08689ecd290b
Fixed
f03398d835f5249c49546f0eb0d0df6792b95d5f
Fixed
a3ac6d849de5f7abe14761d741bbb843ac793454
Fixed
7edd3adb0c80d70b4237640275c559610f438476
Fixed
c5e5d78743992e235b76d2ebe5a403d60315aa8a
Fixed
7b0f62d2986a28e5e4188366bc2f4e2868b14790
Fixed
8b3e4ed9c35d3d3b64fcc23f4a1f22b37c1865b1
Fixed
bd88f6289b7e483216a9c1df15a0460ef9b02cb6
Fixed
6829665d050983907b560173e49dcc6c11cb2730

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-74648.json"

Linux / Kernel

Package

Name
Kernel

Affected ranges

Type
ECOSYSTEM
Events
Introduced
4.12.0
Fixed
5.10.265
Type
ECOSYSTEM
Events
Introduced
5.11.0
Fixed
5.15.216
Type
ECOSYSTEM
Events
Introduced
5.16.0
Fixed
6.1.183
Type
ECOSYSTEM
Events
Introduced
6.2.0
Fixed
6.6.152
Type
ECOSYSTEM
Events
Introduced
6.7.0
Fixed
6.12.104
Type
ECOSYSTEM
Events
Introduced
6.13.0
Fixed
6.18.45
Type
ECOSYSTEM
Events
Introduced
6.19.0
Fixed
7.1.9

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-74648.json"