CVE-2026-64547
Last modified
CVE-2026-64547 is a high-severity vulnerability rated 8.1/10 on the CVSS scale. In the Linux kernel, the following vulnerability has been resolved: net: usb: net1080: validate packet_len before pad-byte access in rx_fixup For an even packet_len, net1080_rx_fixup() reads the pad byte at skb->data[packet_len] before the skb->len != packet_len check further down, and packet_len is only bounded against NC_MAX_PACKET. A malicious NetChip 1080 device can send a short frame advertising a large even packet_len (e.g. EPSS estimates a 0.18% chance of exploitation in the next 30 days.
Description
In the Linux kernel, the following vulnerability has been resolved: net: usb: net1080: validate packet_len before pad-byte access in rx_fixup For an even packet_len, net1080_rx_fixup() reads the pad byte at skb->data[packet_len] before the skb->len != packet_len check further down, and packet_len is only bounded against NC_MAX_PACKET. A malicious NetChip 1080 device can send a short frame advertising a large even packet_len (e.g. 0x4000), so the pad-byte read lands past the end of the skb: BUG: KASAN: slab-out-of-bounds in net1080_rx_fixup Read of size 1 at addr ffff8880106c83c6 by task ksoftirqd/0/14 ... net1080_rx_fixup (drivers/net/usb/net1080.c:384) usbnet_bh (drivers/net/usb/usbnet.c:1589) process_one_work (kernel/workqueue.c:3322) bh_worker (kernel/workqueue.c:3708) tasklet_action (kernel/softirq.c:965) handle_softirqs (kernel/softirq.c:622) ... Reject the frame when packet_len >= skb->len before reading.
Metrics
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
Affected Software
Source: CNA advisory (CVE.org). NVD analysis pending.
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux | >= 904813cd8a0b334189da285bb05af0b18b062502, < f42217fa7d535e9ec4151f7971f06f6ea65e850a; >= 904813cd8a0b334189da285bb05af0b18b062502, < c087749815379e9af2fdbeb08bfc33870b103958; >= 904813cd8a0b334189da285bb05af0b18b062502, < e4a87126c085b097d29e17e3b7647295bba8be7c; >= 904813cd8a0b334189da285bb05af0b18b062502, < 685e92934f11d5e215dad58813e2f9955ac2f436; >= 904813cd8a0b334189da285bb05af0b18b062502, < 4dc8484be3302d187274364820d3bef6c62bde32; >= 904813cd8a0b334189da285bb05af0b18b062502, < b153cfe84b1340c69a13d0957665a2bfcf21239c; >= 904813cd8a0b334189da285bb05af0b18b062502, < ea866cab12db1a2100b400a8b03569e5bc0ee29a; >= 904813cd8a0b334189da285bb05af0b18b062502, < 03f384bc0cb8d4a1301d4f5b0baef2d980258383 |
| Linux | Linux | 2.6.14 |
References
Timeline
- Published
- Last Modified
- Status
- Received
Frequently Asked Questions
What is CVE-2026-64547?
How severe is CVE-2026-64547?
How do I fix CVE-2026-64547?
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
Related CVEs from 2026
- CVE-2026-64541In the Linux kernel, the following vulnerability has been re…9.8
- CVE-2026-64542In the Linux kernel, the following vulnerability has been re…
- CVE-2026-64543In the Linux kernel, the following vulnerability has been re…7.8
- CVE-2026-64544In the Linux kernel, the following vulnerability has been re…
- CVE-2026-64545In the Linux kernel, the following vulnerability has been re…7.5
- CVE-2026-64546In the Linux kernel, the following vulnerability has been re…7.1
- CVE-2026-64548In the Linux kernel, the following vulnerability has been re…8.4
- CVE-2026-64549In the Linux kernel, the following vulnerability has been re…
- CVE-2026-6455The WP Contact Form 7 DB Handler plugin for WordPress is vul…8.1
- CVE-2026-64550In the Linux kernel, the following vulnerability has been re…7.3
- CVE-2026-64551In the Linux kernel, the following vulnerability has been re…9.1
- CVE-2026-64552In the Linux kernel, the following vulnerability has been re…8.4
Are you affected by CVE-2026-64547?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST