7.3

CVE-2026-98222: linux

CVSS: 7.3v4.0HighReceived
AliasesUBUNTU-CVE-2026-98222DEBIAN-CVE-2026-98222
Published 06-10-2026Last modified 19-10-2026
Open JSON

Vulnerability summary

CVE-2026-98222 is a high (CVSS 7.3) vulnerability in linux. EPSS estimates a 0.17% chance of exploitation in the next 30 days, higher than 5.7% of scored vulnerabilities.

Overall risk
29/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.3/10
010
High · v4.0 (OSV · Ubuntu), selected by version preference
EPSS score
0.17%
0%100%
Low · Change unavailable
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-2026:12131-1

Timeline

  1. 06-10-2026
    PublishedVulnerability first disclosed.
  2. 19-10-2026
    Last modifiedVulnerability information updated.

Description

In the Linux kernel, the following vulnerability has been resolved: KEYS: encrypted: fix integer overflow of datablob_len encrypted_key_alloc() stores datablob_len in a u16. It is computed from multiple string and payload lengths. If the result exceeds U16_MAX, the assignment truncates the allocation size. KASAN reports a 32760-byte slab-out-of-bounds write when __ekey_init() copies the master key description into the undersized buffer. The total payload length stored in key->datalen is also a u16. Use check_add_overflow() to reject values that do not fit either destination, and use kzalloc_flex() for the flexible-array allocation.

CVSS metrics

1 score · 1 source · 1 version

EPSS trend

Probability

0.17%

Chance of exploitation in the next 30 days

Percentile

6%

Versus all other CVEs

30-day change

Change unavailable

Change unavailable

06-10-202621-10-2026
EPSS score
0.17%

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

Ubuntu169 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)
Debian1 product
  • linuxAll versions (No fix recorded) | < 6.12.113-1 | < 7.2.8-1
Linux1 product
  • linux≥ 7e70cb4978507cf31d76b90e4cfb4c28cad87f0c, < 1e720f63dbafc093a8f5d519f05b67724993edd4 | ≥ 7e70cb4978507cf31d76b90e4cfb4c28cad87f0c, < a1a98eca102b1cbbc37ff9eaa197ae4e6a3ea4b0 | ≥ 7e70cb4978507cf31d76b90e4cfb4c28cad87f0c, < cca38f2102a4cd35eda8d48950df4817b4b24757 | ≥ 7e70cb4978507cf31d76b90e4cfb4c28cad87f0c, < 8697c431e297eb0d0ab13dda6bc172b48a34f05c | 2.6.38

3 vendors · 171 products

References

8 links