7.8

CVE-2026-98320: linux

CVSS: 7.8v3.1HighReceived
AliasesUBUNTU-CVE-2026-98320DEBIAN-CVE-2026-98320
Published 06-10-2026Last modified 19-10-2026
Open JSON

Vulnerability summary

CVE-2026-98320 is a high (CVSS 7.8) vulnerability in linux. EPSS estimates a 0.14% chance of exploitation in the next 30 days, higher than 2.9% of scored vulnerabilities.

Overall risk
31/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.8/10
010
High · v3.1 (CVE.org)
EPSS score
0.14%
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 3 · Related 1
OPENSUSE-SU-2026:12131-1RHSA-2026:85773RHSA-2026:85774

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: netfilter: flowtable: hold reference on ct until flow is released nf_ct_put() releases the ct->ext area inmediately, the rcu typesafe semantics also allow to refer to the wrong conntrack from the flowtable datapath. Hold reference on ct until flow is released after rcu grace period. Add rcu_barrier() on module exit path, to ensure pending flow entries are release before module goes away.

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

Change unavailable

Change unavailable

06-10-202620-10-2026
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)
Debian1 product
  • linuxAll versions (No fix recorded) | < 6.1.190-1 | < 6.12.113-1 | < 7.2.8-1
Linux1 product
  • linux≥ 0ff90b6c20340e57616a51ae1a1bf18156d6638a, < 93ff1594be1aad4da364462dd8db050ebcfda2de | ≥ 0ff90b6c20340e57616a51ae1a1bf18156d6638a, < eed6997e8dc40593a539fcc722e7ed51b18db86c | ≥ 0ff90b6c20340e57616a51ae1a1bf18156d6638a, < 61c6688be282277c6e91ab286a7acd0ae8681ac6 | ≥ 0ff90b6c20340e57616a51ae1a1bf18156d6638a, < a43cd2b67b91e943273c913237a7a88c50cdcfbc | ≥ 0ff90b6c20340e57616a51ae1a1bf18156d6638a, < 8274cdc5f9c57e17ed77fc4ba76212536c840f25 | ≥ 0ff90b6c20340e57616a51ae1a1bf18156d6638a, < 12c1ac230f4ca16e0017b62a963ab75e0b48074f | ≥ 0ff90b6c20340e57616a51ae1a1bf18156d6638a, < d9e6175a3ee48209ee65f294fc567b4e16b29b74 | ≥ 0ff90b6c20340e57616a51ae1a1bf18156d6638a, < e75a9fa1d44bcbd66ea02e8781bcca6ea4076e0d | 4.16

3 vendors · 167 products

References

12 links
Show all 12 references