8.1

CVE-2026-64547: linux Out-of-bounds Read

CVSS: 8.1v3.1HighReceived
AliasesUBUNTU-CVE-2026-64547DEBIAN-CVE-2026-64547
Published 27-07-2026Last modified 19-10-2026
Open JSON

Vulnerability summary

CVE-2026-64547 is a high (CVSS 8.1) Out-of-bounds Read vulnerability in linux. EPSS estimates a 0.27% chance of exploitation in the next 30 days, higher than 18.5% of scored vulnerabilities.

Overall risk
32/100
0100
Medium · default modelHow is this calculated?
CVSS score
8.1/10
010
High · v3.1 (CVE.org)
EPSS score
0.27%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 30 · Related 28
MGASA-2026-0336MGASA-2026-0337OPENSUSE-SU-2026:11476-1OPENSUSE-SU-2026:21910-1SUSE-SU-2026:23477-1SUSE-SU-2026:23481-1

Timeline

  1. 27-07-2026
    PublishedVulnerability first disclosed.
  2. 19-10-2026
    Last modifiedVulnerability information updated.

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.

CVSS metrics

4 scores · 4 sources · 1 version

EPSS trend

Probability

0.27%

Chance of exploitation in the next 30 days

Percentile

19%

Versus all other CVEs

30-day change

0.00 pp

From 0.27% on 19-09-2026

19-09-202619-10-2026
EPSS score
0.27%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Ubuntu169 products
  • linuxAll versions (No fix recorded) | < 5.15.0-198.208 | < 6.8.0-147.147 | < 7.0.0-38.38
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-awsAll versions (No fix recorded) | < 5.15.0-1117.124 | < 6.8.0-1067.70 | < 7.0.0-1014.14
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Debian2 products
  • linux< 6.1.180-1 | < 6.12.100-1 | < 7.1.5-1
  • linux-6.12< 6.12.100-1~deb12u1
Linux1 product
  • linux≥ 904813cd8a0b334189da285bb05af0b18b062502, < f42217fa7d535e9ec4151f7971f06f6ea65e850a | ≥ 904813cd8a0b334189da285bb05af0b18b062502, < c087749815379e9af2fdbeb08bfc33870b103958 | ≥ 904813cd8a0b334189da285bb05af0b18b062502, < e4a87126c085b097d29e17e3b7647295bba8be7c | ≥ 904813cd8a0b334189da285bb05af0b18b062502, < 685e92934f11d5e215dad58813e2f9955ac2f436 | ≥ 904813cd8a0b334189da285bb05af0b18b062502, < 4dc8484be3302d187274364820d3bef6c62bde32 | ≥ 904813cd8a0b334189da285bb05af0b18b062502, < b153cfe84b1340c69a13d0957665a2bfcf21239c | ≥ 904813cd8a0b334189da285bb05af0b18b062502, < ea866cab12db1a2100b400a8b03569e5bc0ee29a | ≥ 904813cd8a0b334189da285bb05af0b18b062502, < 03f384bc0cb8d4a1301d4f5b0baef2d980258383 | 2.6.14

3 vendors · 172 products

References

28 links
Show all 28 references