7.8

CVE-2026-53157: linux Use After Free

CVSS: 7.8v3.1HighAnalyzed
AliasesUBUNTU-CVE-2026-53157DEBIAN-CVE-2026-53157CGA-2hx5-xjcq-86pf
Published 25-06-2026Last modified 04-07-2026
Open JSON

Vulnerability summary

CVE-2026-53157 is a high (CVSS 7.8) Use After Free vulnerability in linux. EPSS estimates a 0.13% chance of exploitation in the next 30 days, higher than 2% of scored vulnerabilities.

Overall risk
31/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.8/10
010
High · 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 27 · Related 27
MGASA-2026-0312OPENSUSE-SU-2026:21555-1SUSE-SU-2026:23066-1SUSE-SU-2026:23068-1SUSE-SU-2026:23221-1SUSE-SU-2026:23231-1

Timeline

  1. 25-06-2026
    PublishedVulnerability first disclosed.
  2. 04-07-2026
    Last modifiedVulnerability information updated.

Description

In the Linux kernel, the following vulnerability has been resolved: net: phonet: free phonet_device after RCU grace period phonet_device_destroy() removes a phonet_device from the per-net device list with list_del_rcu(), but frees it immediately. RCU readers walking the same list can still hold a pointer to the object after it has been removed, leading to a slab-use-after-free. Use kfree_rcu(), matching the lifetime rule already used by phonet_address_del() for the same object type.

CVSS metrics

3 scores · 3 sources · 1 version

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 19-09-2026

19-09-202619-10-2026
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

Affected systems

Ubuntu169 products
  • linuxAll versions (No fix recorded) | < 5.15.0-198.208 | < 6.8.0-147.147 | < 7.0.0-31.31
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-awsAll versions (No fix recorded) | < 5.15.0-1117.124 | < 6.8.0-1067.70 | < 7.0.0-1012.12
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Chainguard12 products
  • linux-aws-6.12< 6.12.96-r0
  • linux-azure-6.12< 6.12.96-r0
  • linux-azure-6.18< 6.18.38-r0
  • linux-gcp-6.12< 6.12.96-r0
  • linux-gcp-6.18< 6.18.38-r0
Linux2 products
  • linux≥ eeb74a9d45f781ec6f47b9e0a75a6a427b53f165, < d59794337ea496042288c7c68356d9b9ca7f46a9 | ≥ eeb74a9d45f781ec6f47b9e0a75a6a427b53f165, < 6cd7067d6e4b0b2033ba2f918ecbd54dc2af3763 | ≥ eeb74a9d45f781ec6f47b9e0a75a6a427b53f165, < 2ec8011cce0cd0fc7a5068585d867fc08d508578 | ≥ eeb74a9d45f781ec6f47b9e0a75a6a427b53f165, < 09c9b92c2010481160245244ea8fa1d06d5d4ae0 | ≥ eeb74a9d45f781ec6f47b9e0a75a6a427b53f165, < bd2ab4d800fc26814d89328d87b5f97ef6aa906a | ≥ eeb74a9d45f781ec6f47b9e0a75a6a427b53f165, < 52b8f5ef82c886f7cd24617915e4b1579ddfd001 | ≥ eeb74a9d45f781ec6f47b9e0a75a6a427b53f165, < bff309ea51f1395c1ef8be8b75ce62d28a319113 | ≥ eeb74a9d45f781ec6f47b9e0a75a6a427b53f165, < 71de0177b28da751f407581a4515cf4d762f6296 | 2.6.33
  • linux_kernel≥ 2.6.33, < 5.10.260 | ≥ 5.11, < 5.15.211 | ≥ 5.16, < 6.1.177 | ≥ 6.2, < 6.6.144 | ≥ 6.7, < 6.12.95 | ≥ 6.13, < 6.18.36 | ≥ 6.19, < 7.0.13 | 7.1:rc1 | 7.1:rc2 | 7.1:rc3 | 7.1:rc4 | 7.1:rc5 | 7.1:rc6 | 7.1:rc7
Debian1 product
  • linux< 6.1.177-1 | < 6.12.95-1 | < 7.0.13-1

4 vendors · 184 products

References

33 links
Show all 33 references