7.8

CVE-2026-52962: linux Out-of-bounds Write

CVSS: 7.8v3.1HighAnalyzed
AliasesUBUNTU-CVE-2026-52962DEBIAN-CVE-2026-52962
Published 24-06-2026Last modified 29-06-2026
Open JSON

Vulnerability summary

CVE-2026-52962 is a high (CVSS 7.8) Out-of-bounds Write 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 (NVD)
EPSS score
0.14%
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-2026:21388-1SUSE-SU-2026:22521-1SUSE-SU-2026:22522-1SUSE-SU-2026:22665-1SUSE-SU-2026:22666-1SUSE-SU-2026:22742-1

Timeline

  1. 24-06-2026
    PublishedVulnerability first disclosed.
  2. 29-06-2026
    Last modifiedVulnerability information updated.

Description

In the Linux kernel, the following vulnerability has been resolved: ceph: fix a buffer leak in __ceph_setxattr() The old_blob in __ceph_setxattr() can store ci->i_xattrs.prealloc_blob value during the retry. However, it is never called the ceph_buffer_put() for the old_blob object. This patch fixes the issue of the buffer leak.

CVSS metrics

3 scores · 3 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

0.00 pp

From 0.14% on 21-09-2026

21-09-202621-10-2026
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

Affected systems

Ubuntu166 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≥ 86968ef21596515958d5f0a40233d02be78ecec0, < 521e5aba857fd267624892c8dd6295f22ce0267e | ≥ 86968ef21596515958d5f0a40233d02be78ecec0, < d0cb994605c84a159c1d00d72cdc8583c321ef95 | ≥ 86968ef21596515958d5f0a40233d02be78ecec0, < ecf94823c5c6a20790bb76ed2816822b0beb0c22 | ≥ 86968ef21596515958d5f0a40233d02be78ecec0, < 4bfdcefdaa6092a06cacd59389c7756b36e6de8c | ≥ 86968ef21596515958d5f0a40233d02be78ecec0, < 7d3e8d2d648d5f0df29b4710246680f47695fe94 | ≥ 86968ef21596515958d5f0a40233d02be78ecec0, < 3fa13ceefbc5f36131110342743994cb3de80637 | ≥ 86968ef21596515958d5f0a40233d02be78ecec0, < bc7abce4460e490dcb579eec770f175b150b685f | ≥ 86968ef21596515958d5f0a40233d02be78ecec0, < 5d3cc36b4e77a27ce7b686b7c59c7072bcb3fa8e | 1d86cb8d3204337e1853b84d69ea0f30dc0ba973 | 9cec64d3f6d91da590cc4069172254067b43d0b2 | de30fc2ca852365ed635f62d7d818bffc15e55c9 | dfb8712c7acce0689aed6c400a22b35f4d2861fe | f41cd559f1f3412db8e0acdede05ecf990ebfd8a | ≥ 4.4.192, < 4.5 | ≥ 4.9.192, < 4.10 | ≥ 4.14.143, < 4.15 | ≥ 4.19.72, < 4.20 | ≥ 5.2.14, < 5.3 | 5.3
  • linux_kernel≥ 4.4.192, < 4.5 | ≥ 4.9.192, < 4.10 | ≥ 4.14.143, < 4.15 | ≥ 4.19.72, < 4.20 | ≥ 5.2.14, < 5.3 | ≥ 5.3.1, < 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 | 5.3 | 5.3:rc6 | 5.3:rc7 | 5.3:rc8 | 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 · 169 products

References

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