5.5

CVE-2026-52970: linux

CVSS: 5.5v3.1MediumModified
AliasesUBUNTU-CVE-2026-52970DEBIAN-CVE-2026-52970
Published 24-06-2026Last modified 15-10-2026
Open JSON

Vulnerability summary

CVE-2026-52970 is a medium (CVSS 5.5) vulnerability in linux. EPSS estimates a 0.13% chance of exploitation in the next 30 days, higher than 2.6% of scored vulnerabilities.

Overall risk
22/100
0100
Low · default modelHow is this calculated?
CVSS score
5.5/10
010
Medium · v3.1 (NVD)
EPSS score
0.13%
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 49 · Related 49
OPENSUSE-SU-2026:21555-1SUSE-SU-2026:23066-1SUSE-SU-2026:23068-1SUSE-SU-2026:23193-1SUSE-SU-2026:23194-1SUSE-SU-2026:23221-1

Timeline

  1. 24-06-2026
    PublishedVulnerability first disclosed.
  2. 15-10-2026
    Last modifiedVulnerability information updated.

Description

In the Linux kernel, the following vulnerability has been resolved: netfilter: nft_ct: fix missing expect put in obj eval nft_ct_expect_obj_eval() allocates an expectation and may call nf_ct_expect_related(), but never drops its local reference. Add nf_ct_expect_put(exp) before return to balance allocation.

CVSS metrics

3 scores · 3 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

0.00 pp

From 0.13% on 21-09-2026

21-09-202621-10-2026
EPSS score
0.13%

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

Ubuntu162 products
  • linuxAll versions (No fix recorded) | < 5.15.0-186.196 | < 6.8.0-136.136 | < 7.0.0-28.28
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-awsAll versions (No fix recorded) | < 5.15.0-1112.119 | < 6.8.0-1061.64 | < 7.0.0-1009.9
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Linux2 products
  • linux≥ 857b46027d6f91150797295752581b7155b9d0e1, < cdb9a25dd3416d427e8b2753210f8baf44207577 | ≥ 857b46027d6f91150797295752581b7155b9d0e1, < 26ab32ec73941871c97562ee1f39587950dc3b68 | ≥ 857b46027d6f91150797295752581b7155b9d0e1, < 7b96242ceedfe249f158419f3254bcee04173ffe | ≥ 857b46027d6f91150797295752581b7155b9d0e1, < ecca618e1e339494911090474ed87742c0f73976 | ≥ 857b46027d6f91150797295752581b7155b9d0e1, < 2aef1b13d5c0285f340512c6c07eb858fd018fd8 | ≥ 857b46027d6f91150797295752581b7155b9d0e1, < 1dced0725e2fae3ac3416274db20a7ff5a46931d | ≥ 857b46027d6f91150797295752581b7155b9d0e1, < 84c422cea5a45fe56be839f25880f21fd33940cd | ≥ 857b46027d6f91150797295752581b7155b9d0e1, < 19f94b6fee75b3ef7fbc06f3745b9a771a8a19a4 | 5.3
  • linux_kernel≥ 5.3, < 5.10.258 | ≥ 5.11, < 5.15.209 | ≥ 5.16, < 6.1.175 | ≥ 6.2, < 6.6.141 | ≥ 6.7, < 6.12.91 | ≥ 6.13, < 6.18.33 | ≥ 6.19, < 7.0.10 | 7.1:rc1 | 7.1:rc2 | 7.1:rc3
Debian1 product
  • linux< 6.1.176-1 | < 6.12.94-1 | < 7.0.10-1

3 vendors · 165 products

References

52 links
Show all 52 references