Trending
CVE-2026-53071

CVE detail

CVE-2026-53071

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: l2cap: Add missing chan lock in l2cap_ecred_reconf_rsp l2cap_ecred_reconf_rsp() calls l2cap_chan_del() without holding l2cap_chan_lock(). Every other l2cap_chan_del() caller in the file acquires the lock first. A remote BLE device can send a crafted L2CAP ECRED reconfiguration response to corrupt the channel list while another thread is iterating it. Add l2cap_chan_hold() and l2cap_chan_lock() before l2cap_chan_del(), and l2cap_chan_unlock() and l2cap_chan_put() after, matching the pattern used in l2cap_ecred_conn_rsp() and l2cap_conn_del().

CVSS 8.8 · HighBuzz score 40.7

Buzz score

Why this CVE is surfacing

Buzz score total 40.7

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 27.7 · diversity 13.0 · KEV 0.0 · OTX 0.0 · PoC 0.0

Mention score

27.7

15 evidence mentions in the snapshot

Diversity score

13.0

4 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: 0; within the 30d window
Peak daily: 0; highest bucket

Evidence

Source links by recency

Newest mentions first

15 source links · newest first

https://access.redhat.com/errata/RHSA-2026:43307access.redhat.com
No excerpt available.
Vendor Advisoryaccess.redhat.comJun 24, 2026, 5:17 PM
https://access.redhat.com/errata/RHSA-2026:42919access.redhat.com
No excerpt available.
Vendor Advisoryaccess.redhat.comJun 24, 2026, 5:17 PM
https://access.redhat.com/errata/RHSA-2026:42552access.redhat.com
No excerpt available.
Vendor Advisoryaccess.redhat.comJun 24, 2026, 5:17 PM
https://access.redhat.com/errata/RHSA-2026:42550access.redhat.com
No excerpt available.
Vendor Advisoryaccess.redhat.comJun 24, 2026, 5:17 PM
https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-53071.jsonsecurity.access.redhat.com
No excerpt available.
Vendor Advisorysecurity.access.redhat.comJun 24, 2026, 5:17 PM
https://bugzilla.redhat.com/show_bug.cgi?id=2492458bugzilla.redhat.com
No excerpt available.
Exploitbugzilla.redhat.comJun 24, 2026, 5:17 PM
https://access.redhat.com/security/cve/CVE-2026-53071access.redhat.com
No excerpt available.
Vendor Advisoryaccess.redhat.comJun 24, 2026, 5:17 PM
https://git.kernel.org/stable/c/fe1188abdae9b7a8199dcdfcf9244d5e5d61eb14git.kernel.org
No excerpt available.
Vendor Advisorygit.kernel.orgJun 24, 2026, 5:17 PM
https://git.kernel.org/stable/c/dc89961b76f12aff47124c1df4bdb32a080f4d0cgit.kernel.org
No excerpt available.
Vendor Advisorygit.kernel.orgJun 24, 2026, 5:17 PM
https://git.kernel.org/stable/c/96dca51715d86559ed6ed8028e5445cecb80f3aegit.kernel.org
No excerpt available.
Vendor Advisorygit.kernel.orgJun 24, 2026, 5:17 PM
https://git.kernel.org/stable/c/77a853aec710b2fdf41fa298ea3cbc9a4358f917git.kernel.org
No excerpt available.
Vendor Advisorygit.kernel.orgJun 24, 2026, 5:17 PM
https://git.kernel.org/stable/c/5501d055a1ce3c747141e3955ba8cf034d193f3egit.kernel.org
No excerpt available.
Vendor Advisorygit.kernel.orgJun 24, 2026, 5:17 PM
https://git.kernel.org/stable/c/42776497cdbc9a665b384a6dcb85f0d4bd927eabgit.kernel.org
No excerpt available.
Vendor Advisorygit.kernel.orgJun 24, 2026, 5:17 PM
https://git.kernel.org/stable/c/330b20ec97916961ee0e6c29c06bc0fa7c96e64cgit.kernel.org
No excerpt available.
Vendor Advisorygit.kernel.orgJun 24, 2026, 5:17 PM
https://git.kernel.org/stable/c/0ccd75c51f620374086f359e906917676e699a1cgit.kernel.org
No excerpt available.
Vendor Advisorygit.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

Similar CVEs

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In several functions of DescramblerImpl.cpp, there is a possible use after free due to improper locking. This could lead to local escalation of privilege with no additional execut…
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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-2026-53071.

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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Shodan's exact vuln: filter is separate from the product searches above and requires an eligible paid Shodan plan.

vuln:CVE-2026-53071Search this CVE on Shodan

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Metadata

Canonical fields

NVD status

Modified

Published

Jun 24, 2026

Modified

Jul 23, 2026

Official record

Authoritative NVD record

CVSS vector

CVSS:3.1/AV:A/AC:L/PR:N/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): Adjacent. The attacker must reach the same or an adjacent network.
Attack Complexity (AC): Low. No special conditions beyond the attacker-controlled steps are required.
Privileges Required (PR): None. The attacker needs no privileges on the vulnerable system.
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