8.8

CVE-2026-74541: linux

CVSS: 8.8v3.1HighReceived
AliasesUBUNTU-CVE-2026-74541DEBIAN-CVE-2026-74541
Published 15-08-2026Last modified 16-10-2026
Open JSON

Vulnerability summary

CVE-2026-74541 is a high (CVSS 8.8) vulnerability in linux. EPSS estimates a 0.25% chance of exploitation in the next 30 days, higher than 15% of scored vulnerabilities.

Overall risk
35/100
0100
Medium · default modelHow is this calculated?
CVSS score
8.8/10
010
High · v3.1 (CVE.org)
EPSS score
0.25%
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 6 · Related 6
SUSE-SU-2026:24181-1SUSE-SU-2026:24182-1SUSE-SU-2026:4640-1SUSE-SU-2026:4660-1SUSE-SU-2026:4706-1USN-8781-1

Timeline

  1. 15-08-2026
    PublishedVulnerability first disclosed.
  2. 16-10-2026
    Last modifiedVulnerability information updated.

Description

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: ISO: clear iso_data always when detaching conn from hcon When setting conn->hcon = NULL, also conn->hcon->iso_data = NULL is necessary, otherwise later iso_conn_free() will UAF. Fix clearing of iso_data in iso_sock_disconn() Fixes KASAN: slab-use-after-free in iso_conn_hold_unless_zero on iso_sock_release() followed by hci_abort_conn_sync().

CVSS metrics

4 scores · 4 sources · 1 version

EPSS trend

Probability

0.25%

Chance of exploitation in the next 30 days

Percentile

15%

Versus all other CVEs

30-day change

0.00 pp

From 0.25% on 21-09-2026

21-09-202621-10-2026
EPSS score
0.25%

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

No weakness data has been published for this record.

Affected systems

Ubuntu142 products
  • linuxAll versions (No fix recorded)
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-awsAll versions (No fix recorded)
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Debian2 products
  • linux< 6.12.105-1 | < 7.1.8-1
  • linux-6.12< 6.12.107-1~deb12u1
Linux1 product
  • linux≥ fbdc4bc47268953c80853489f696e02d61f9a2c6, < cc1d39946d62bc568551dfb81149724de1e91338 | ≥ fbdc4bc47268953c80853489f696e02d61f9a2c6, < 7b51a9c25e9698b64df9f2218f10eecf7dc7e2d0 | ≥ fbdc4bc47268953c80853489f696e02d61f9a2c6, < 63c0f396a18b767eb28e895eb95bbdce6c172c59 | ≥ fbdc4bc47268953c80853489f696e02d61f9a2c6, < 69a4a7b162b3db6ac337e3094cdee38f24d42ff7 | ≥ fbdc4bc47268953c80853489f696e02d61f9a2c6, < d57e506f6a1e3929611340fae87c1e4823f4d85c | c03a10bd5b6ccb22921e04bcddc987410df7e7a9 | ≥ 6.5.12, < 6.6 | 6.6

3 vendors · 145 products

References

10 links