7.8

CVE-2026-68467: mtd: mchp23k256: use SPI match data for chip caps

Received
AliasesUBUNTU-CVE-2026-68467DEBIAN-CVE-2026-68467
Published 15-08-2026Last modified 17-08-2026

Vulnerability summary

CVE-2026-68467 is a high (CVSS 7.8) vulnerability in linux. EPSS estimates a 0.13% chance of exploitation in the next 30 days, higher than 2.5% of scored vulnerabilities.

Priority
Routine

Not severe (CVSS 7.8, local access); no exploitation reported by the 5 checked sources

Source freshness unavailable

How is this decided?
CVSS score
7.8/10
010
High · v3.1 (CVE.org)
EPSS score
0.13%
0%100%
Low · -0.05 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 17 · Related 16
SUSE-SU-2026:5091-1USN-8875-1USN-8875-2USN-8876-1USN-8877-1USN-8878-1

Timeline

  1. 15-08-2026
    PublishedVulnerability first disclosed.
  2. 17-08-2026
    Last modifiedVulnerability information updated.

Description

In the Linux kernel, the following vulnerability has been resolved: mtd: mchp23k256: use SPI match data for chip caps The driver stores chip capacity information in both the OF match table and the SPI id table. Probe currently uses of_device_get_match_data(), so a non-OF SPI modalias match falls back to mchp23k256_caps even when the SPI id table selected a different part. Use spi_get_device_match_data() so SPI id-table driver_data is consumed when OF match data is absent. This keeps the existing default fallback while avoiding the wrong MTD geometry for id-table-only matches.

CVSS metrics

4 scores · 4 sources · 1 version

EPSS trend

Probability

0.13%

Chance of exploitation in the next 30 days

Percentile

3%

Versus all other CVEs

30-day change

Decrease -0.05 pp

From 0.18% on 06-10-2026

06-10-202605-11-2026

Known exploited

Compare KEV catalogs
CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

No weakness data has been published for this record.

Affected systems

Version check

Known conditions: local access, low-privilege account, no user interaction (CVSS vector). Other conditions: not stated in public data.

Ubuntu168 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)
Debian1 product
  • linux< 6.1.180-1 | < 6.12.100-1 | < 7.1.5-1
Linux1 product
  • linux≥ 4379075a870b8de43a9ecd5b46884953234fc669, < 2e179b028da9fd628a09286a2c9df4fa076b2cc9 | ≥ 4379075a870b8de43a9ecd5b46884953234fc669, < a0c38083623c8b210a5b87fd34bebd05aa935ae8 | ≥ 4379075a870b8de43a9ecd5b46884953234fc669, < 7c0a3a73dccc9a3fc701f6be762449f18d0ca0fc | ≥ 4379075a870b8de43a9ecd5b46884953234fc669, < dbe2254d1da99c986f9a3392471fc5eaa3229647 | ≥ 4379075a870b8de43a9ecd5b46884953234fc669, < 04ebd3766861f219325852c9598e0f0281cb3636 | ≥ 4379075a870b8de43a9ecd5b46884953234fc669, < 09e044192a42f716215fbd1a100ee87fa57426aa | ≥ 4379075a870b8de43a9ecd5b46884953234fc669, < d322e40f4edf92bf0ca329e5aa4ae1c0316feb38 | 4.13

3 vendors · 170 products

References

27 links
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