CVE-2023-34320

mediumpriority · track · 22EPSS 0.002 · 15 %ileDEUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

0.24% (15th) EPSS

CVSS 5.5 · medium

Is it mine?

9 products

Check your exposure

Who says so?

4 sources

cnnvd · enisa_euvd · cert_bund · nvd

EPSS · scored 2026-10-27

Cortex-A77 cores (r0p0 and r1p0) are affected by erratum 1508412 where software, under certain circumstances, could deadlock a core due to the execution of either a load to device or non-cacheable memory, and either a store exclusive or register read of the Physical Address Register (PAR_EL1) in close proximity.

cvss

Technical severity, 0–10. One row per scoring source.

5.5

010

base score 0–10 · higher = more severe · hover a vector to decode

v3.15.5mediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:Hprimary · NVD / NIST USexploitability 1.8 · impact 3.6

v3.15.1mediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/E:Usecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-667USprimary

affected products (9)

Products and version ranges known to be affected.

Fedora Linuxall versionscert_bundDEcpe:/o:fedoraproject:fedora:-
Gentoo Linuxall versionscert_bundDEcpe:/o:gentoo:linux:-
Open Source Xen <4.16.4-4.fc37all versionscert_bundDE
Open Source Xen <4.17.1-9.fc38all versionscert_bundDE
Open Source Xen< 4.16.4-4.fc37cert_bundDE
Open Source Xen< 4.17.1-9.fc38cert_bundDE
arm cortex-a77 firmware= r0p0nvdUScpe:2.3:o:arm:cortex-a77_firmware:*:*:*:*:*:*:*:*
arm cortex-a77 firmware= r1p0nvdUScpe:2.3:o:arm:cortex-a77_firmware:*:*:*:*:*:*:*:*
xen xenall versionsnvdUScpe:2.3:o:xen:xen:*:*:*:*:*:*:*:*

advisories (1)

Vendor and ecosystem advisories describing this.

WID-SEC-W-2023-1941Xen: Schwachstelle ermöglicht Denial of ServiceDeutsch2023-08-01csaf · cert_bundDE
Ein lokaler Angreifer kann eine Schwachstelle in Xen ausnutzen, um einen Denial of Service Angriff durchzuführen.

also known as (3)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd cert_bund nvd NVD CVE.org MITRE

published 2023-12-08modified 2026-06-17

related (1,369)

Related entries.

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+1364 more

references (6)

External citations — patches, advisories, analysis.

scry

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