Trending
CVE-2026-52962

CVE detail

CVE-2026-52962

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 7.8 · HighBuzz score 33.0

Buzz score

Why this CVE is surfacing

Buzz score total 33.0

This all-time snapshot uses the same composite formula as Trending across a 30-year evidence window, rather than a current rolling window.

Buzz score components · mention 23.0 · diversity 10.0 · KEV 0.0 · OTX 0.0 · PoC 0.0

Mention score

23.0

9 evidence mentions in the snapshot

Diversity score

10.0

2 sources across 2 categories

KEV score

0.0

No KEV entry observed

OTX score

0.0

0 OTX pulses

PoC score

0.0

0 repos · best confidence N/A

Best PoC traction

Maximum stars on a matched PoC repo

Why it matters now

Mention timeline

Total mentions: 9; within the 30d window
Peak daily: 8; highest bucket

Evidence

Source links by recency

Newest mentions first

9 source links · newest first

CVE-2026-52962 ceph: fix a buffer leak in __ceph_setxattr()Microsoft MSRC
Information published.
vendormsrc.microsoft.comJun 28, 2026, 8:42 AM
https://git.kernel.org/stable/c/ecf94823c5c6a20790bb76ed2816822b0beb0c22git.kernel.org
No excerpt available.
Patchgit.kernel.orgJun 24, 2026, 5:17 PM
https://git.kernel.org/stable/c/d0cb994605c84a159c1d00d72cdc8583c321ef95git.kernel.org
No excerpt available.
Patchgit.kernel.orgJun 24, 2026, 5:17 PM
https://git.kernel.org/stable/c/bc7abce4460e490dcb579eec770f175b150b685fgit.kernel.org
No excerpt available.
Patchgit.kernel.orgJun 24, 2026, 5:17 PM
https://git.kernel.org/stable/c/7d3e8d2d648d5f0df29b4710246680f47695fe94git.kernel.org
No excerpt available.
Patchgit.kernel.orgJun 24, 2026, 5:17 PM
https://git.kernel.org/stable/c/5d3cc36b4e77a27ce7b686b7c59c7072bcb3fa8egit.kernel.org
No excerpt available.
Patchgit.kernel.orgJun 24, 2026, 5:17 PM
https://git.kernel.org/stable/c/521e5aba857fd267624892c8dd6295f22ce0267egit.kernel.org
No excerpt available.
Patchgit.kernel.orgJun 24, 2026, 5:17 PM
https://git.kernel.org/stable/c/4bfdcefdaa6092a06cacd59389c7756b36e6de8cgit.kernel.org
No excerpt available.
Patchgit.kernel.orgJun 24, 2026, 5:17 PM
https://git.kernel.org/stable/c/3fa13ceefbc5f36131110342743994cb3de80637git.kernel.org
No excerpt available.
Patchgit.kernel.orgJun 24, 2026, 5:17 PM

Exploit code

Public exploit repository references

Public PoC repositories are third-party, potentially unsafe artifacts. Treat their code as untrusted and use it only on authorized systems in an isolated, least-privilege environment. cvebuzz does not execute the code or verify that an exploit works.

0 repository references · best confidence N/A · max 0 stars

No public PoC repositories have been matched yet.

Related records

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External lookup

Potential internet exposure

Potential exposure only — not proof of vulnerability.Shodan results indicate potentially internet-exposed products, not confirmed vulnerable systems. They do not confirm that any returned system is vulnerable to CVE-2026-52962.

Product-level CPE searches intentionally omit version fields and NVD version-range or configuration certainty. Verify the exact product version and configuration independently.

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Product CPE queries

Derived from this CVE's existing NVD CPE 2.3 records; the application, operating-system, or hardware part is retained.

cpe:2.3:o:linux:linux_kernelSearch this product on Shodan

Exact CVE query

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vuln:CVE-2026-52962Search this CVE on Shodan

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Metadata

Canonical fields

NVD status

Analyzed

Published

Jun 24, 2026

Modified

Jul 14, 2026

Official record

Authoritative NVD record

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CWE IDs

Vendor classifications

How this vector reads

CVSS 3.1 base metrics decoded below. This explanation does not recalculate or change the NVD score.

Attack Vector (AV): Local. The attacker needs local access to the vulnerable system.
Attack Complexity (AC): Low. No special conditions beyond the attacker-controlled steps are required.
Privileges Required (PR): Low. The attacker needs basic user-level privileges.
User Interaction (UI): None. Exploitation does not require another user to act.
Scope (S): Unchanged. Impacts remain within the vulnerable security authority.
Confidentiality Impact (C): High. There is a total or serious impact to this security property.
Integrity Impact (I): High. There is a total or serious impact to this security property.
Availability Impact (A): High. There is a total or serious impact to this security property.

Signals

Exploitation indicators

0 stored signals · no KEV · 0 OTX pulses