5.5

CVE-2026-64173: linux

CVSS: 5.5v3.1MediumAnalyzed
AliasesUBUNTU-CVE-2026-64173DEBIAN-CVE-2026-64173
Published 19-07-2026Last modified 19-07-2026
Open JSON

Vulnerability summary

CVE-2026-64173 is a medium (CVSS 5.5) vulnerability in linux. EPSS estimates a 0.11% chance of exploitation in the next 30 days, higher than 1.3% 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
0.11%
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 35 · Related 35
OPENSUSE-SU-2026:22091-1SUSE-SU-2026:4640-1SUSE-SU-2026:4706-1USN-8575-1USN-8575-2USN-8575-3

Timeline

  1. 19-07-2026
    PublishedVulnerability first disclosed.

Description

In the Linux kernel, the following vulnerability has been resolved: tracing: Do not call map->ops->elt_free() if elt_alloc() fails In paths where tracing_map_elt_alloc() failed to allocate objects, the map->ops->elt_alloc() call was never successful. In this case, map->ops->elt_free() should not be called.

CVSS metrics

3 scores · 3 sources · 1 version

EPSS trend

Probability

0.11%

Chance of exploitation in the next 30 days

Percentile

1%

Versus all other CVEs

30-day change

0.00 pp

From 0.11% on 19-09-2026

19-09-202619-10-2026
EPSS score
0.11%

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

Ubuntu163 products
  • linuxAll versions (No fix recorded) | < 5.15.0-186.196 | < 6.8.0-139.139 | < 7.0.0-28.28
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-awsAll versions (No fix recorded) | < 5.15.0-1112.119 | < 6.8.0-1064.67 | < 7.0.0-1009.9
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Linux2 products
  • linux≥ 2734b629525a9dae5bf217cbf0a9651da93d2108, < 49332e49ad5b20262cc719b03d4123b9362de701 | ≥ 2734b629525a9dae5bf217cbf0a9651da93d2108, < b559a218eece132de0c58d444877b5627cbee524 | ≥ 2734b629525a9dae5bf217cbf0a9651da93d2108, < b427e9f6d81c9341cba23ef92f860f99f830d91d | ≥ 2734b629525a9dae5bf217cbf0a9651da93d2108, < f383cff9fb382139980bac1bcd3f3f5d59f68435 | ≥ 2734b629525a9dae5bf217cbf0a9651da93d2108, < 1a150947f8480262a46c860f1acb9c6597ca7097 | ≥ 2734b629525a9dae5bf217cbf0a9651da93d2108, < 798183376d9d3e278a270ea0e75a5769c8f145d9 | ≥ 2734b629525a9dae5bf217cbf0a9651da93d2108, < b6723339736320b2e1784258ad4490cec7aac11a | ≥ 2734b629525a9dae5bf217cbf0a9651da93d2108, < 8f0f5c4fb9df0e19a341e0c6ed8dc4fda9124f03 | 4.17
  • linux_kernel≥ 4.17, < 5.10.258 | ≥ 5.11, < 5.15.209 | ≥ 5.16, < 6.1.175 | ≥ 6.2, < 6.6.142 | ≥ 6.7, < 6.12.92 | ≥ 6.13, < 6.18.34 | ≥ 6.19, < 7.0.11 | 7.1:rc1 | 7.1:rc2 | 7.1:rc3 | 7.1:rc4
Debian1 product
  • linux< 6.1.176-1 | < 6.12.94-1 | < 7.0.12-1

3 vendors · 166 products

References

44 links
Show all 44 references