8.4

CVE-2026-89470: linux

CVSS: 8.4v3.1HighReceived
AliasesUBUNTU-CVE-2026-89470DEBIAN-CVE-2026-89470
Published 11-09-2026Last modified 19-10-2026
Open JSON

Vulnerability summary

CVE-2026-89470 is a high (CVSS 8.4) vulnerability in linux. EPSS estimates a 0.14% chance of exploitation in the next 30 days, higher than 3.1% of scored vulnerabilities.

Overall risk
34/100
0100
Medium · default modelHow is this calculated?
CVSS score
8.4/10
010
High · v3.1 (CVE.org)
EPSS score
0.14%
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 1 · Related 1
OPENSUSE-SU-2026:11880-1

Timeline

  1. 11-09-2026
    PublishedVulnerability first disclosed.
  2. 19-10-2026
    Last modifiedVulnerability information updated.

Description

In the Linux kernel, the following vulnerability has been resolved: power: supply: cros_usbpd: Limit port counts to EC_USB_PD_MAX_PORTS Currently the cros_usbpd-charger driver probe iterates based on raw charger port count returned by the embedded controller. The only check is against the number of USB PD ports which the embedded controller also defines. A malicious embedded controller could return an inaccurate port count (up to 255) resulting in an out of bounds write and subsequent memory corruption. Update helper functions in cros_usbpd-charger to limit port counts to EC_USB_PD_MAX_PORTS.

CVSS metrics

4 scores · 4 sources · 1 version

EPSS trend

Probability

0.14%

Chance of exploitation in the next 30 days

Percentile

3%

Versus all other CVEs

30-day change

0.00 pp

From 0.14% on 21-09-2026

21-09-202621-10-2026
EPSS score
0.14%

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

Ubuntu165 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
  • linuxAll versions (No fix recorded) | < 6.1.190-1 | < 6.12.111-1 | < 7.2.6-1
  • linux-6.12< 6.12.111-1~deb12u1
Linux1 product
  • linux≥ 3af15cfacd1eef7f223802d49a88cae23c509183, < e951b65ef1699439079b723ca5c72cbe44771647 | ≥ 3af15cfacd1eef7f223802d49a88cae23c509183, < 3ce9218639ff62d011eb8aca0943aa670a654c7b | ≥ 3af15cfacd1eef7f223802d49a88cae23c509183, < dce1750ddbd3380b1f6090dda2b07d2ebea2261d | ≥ 3af15cfacd1eef7f223802d49a88cae23c509183, < 3262977a05b23d1be9fc86727a2b490ec997543e | ≥ 3af15cfacd1eef7f223802d49a88cae23c509183, < fd5f289cca04ad869b34fc9ccb647670bfdb60ac | ≥ 3af15cfacd1eef7f223802d49a88cae23c509183, < 4b1f2be1e1b74a50386ba718de3d62bfcf5ee701 | ≥ 3af15cfacd1eef7f223802d49a88cae23c509183, < 304a29ac55ba3ee6eceaf7d83d09cd9709f3bf60 | ≥ 3af15cfacd1eef7f223802d49a88cae23c509183, < 657cd3a42e937276262c0a8ae6b01a87004309de | 4.20

3 vendors · 168 products

References

12 links
Show all 12 references