CVE-2026-68454: linux Improper Input Validation
CVSS: 8.8v3.1HighReceived
AliasesUBUNTU-CVE-2026-68454DEBIAN-CVE-2026-68454
Published 13-08-2026Last modified 19-10-2026
Vulnerability summary
CVE-2026-68454 is a high (CVSS 8.8) Improper Input Validation vulnerability in linux. EPSS estimates a 0.13% chance of exploitation in the next 30 days, higher than 2.3% of scored vulnerabilities.
CVSS score
8.8/10
010
High · v3.1 (CVE.org)EPSS score
0.13%
0%100%
Low · 0.00 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Advisory lineage
Upstream 0 · Downstream 19 · Related 19Timeline
- 13-08-2026PublishedVulnerability first disclosed.
- 19-10-2026Last modifiedVulnerability information updated.
Description
In the Linux kernel, the following vulnerability has been resolved: KVM: s390: pci: Fix handling of AIF enable without AISB When a guest seeks to register IRQs without a summary bit specified, ensure that the associated GAITE then stores 0 for the guest AISB location instead of virt_to_phys(page_address(NULL)).
CVSS metrics
4 scores · 4 sources · 1 versionHigh 8.8Preferred score · CVE.org (CNA)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:HSourcesAll 4 agree
- OSV · UbuntuEcosystem advisory · calculated8.8HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
- OSV · DebianEcosystem advisory · calculated8.8HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
- NVDNIST8.8HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
EPSS trend
Probability
0.13%
Chance of exploitation in the next 30 days
Percentile
2%
Versus all other CVEs
30-day change
0.00 pp
From 0.13% on 21-09-2026
21-09-202621-10-2026
EPSS score0.13%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Ubuntu157 products
- linuxAll versions (No fix recorded) | < 6.8.0-147.147 | < 7.0.0-38.38
- linux-allwinner-5.19All versions (No fix recorded)
- linux-awsAll versions (No fix recorded) | < 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≥ 3c5a1b6f0a18520a0edd0600fef6f1a8553b8fdc, < f887df91826e72b570c5e9298e66dd929f09edde | ≥ 3c5a1b6f0a18520a0edd0600fef6f1a8553b8fdc, < 3ef3190e30601b2688bdc64169b938b8d7f42010 | ≥ 3c5a1b6f0a18520a0edd0600fef6f1a8553b8fdc, < d48b9b096d11e31690c0a4988f65f21b64c01b2a | ≥ 3c5a1b6f0a18520a0edd0600fef6f1a8553b8fdc, < df72596278b0e22dac5ef2881e9221a3a2c4ed11 | ≥ 3c5a1b6f0a18520a0edd0600fef6f1a8553b8fdc, < 124a3769c43713a11a93a821b313e61ad5110cb8 | ≥ 3c5a1b6f0a18520a0edd0600fef6f1a8553b8fdc, < 3e3aa6da87d30a0064a17b836685cd43c90a3572 | 6.0
3 vendors · 159 products
