CVE-2023-2598

highpriority · track · 41EPSS 0.014 · 72 %ileexploit · PoCDEEURUUS

grimoire priorityP1 · Urgent

Exploitable?

Public exploit

4 exploits · PoC

Likely / severe?

1.37% (72nd) EPSS

CVSS 7.8 · high

Is it mine?

9 products

Check your exposure

Who says so?

5 sources

cnnvd · enisa_euvd · fstec_bdu · cert_bund

EPSS · scored 2026-10-27

A flaw was found in the fixed buffer registration code for io_uring (io_sqe_buffer_register in io_uring/rsrc.c) in the Linux kernel that allows out-of-bounds access to physical memory beyond the end of the buffer. This flaw enables full local privilege escalation.

cvss

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

7.8

010

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

v3.17.8highCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:Hprimary · NVD / NIST USexploitability 1.8 · impact 5.9

v3.17.8highAV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:Hsecondary · FSTEC (BDU) RU

v3.17.8highCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:Hsecondary · ENISA EU

v3.17.8highCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:Hsecondaryexploitability 1.8 · impact 5.9

v3.17.4highCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:Psecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-787USprimaryCWE-125USCWE-416USCWE-416USCWE-787US

exploits (4)

Public proof-of-concept and weaponised exploit code.

LLfam/CVE-2023-2598LLfam/CVE-2023-2598PoC · poc_in_github
SpongeBob-369/CVE-2023-2598The exploitation of CVE-2023-2598 about io_uringPoC · poc_in_github
cainiao159357/CVE-2023-2598cainiao159357/CVE-2023-2598PoC · poc_in_github
ysanatomic/io_uring_LPE-CVE-2023-2598LPE PoC of a vulnerability in the io_uring subsystem of the Linux Kernel.PoC · poc_in_github

affected products (9)

Products and version ranges known to be affected.

Oracle Linuxall versionscert_bundDEcpe:/o:oracle:linux:-
n/a Kernel≤ Kernel prior to 6.4-rc1enisa_euvdEU
Сообщество свободного программного обеспечения Linux6.3.0 → 6.3.1fstec_bduRU
linux linux kernel6.3 → 6.3.2nvdUScpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
netapp hci baseboard management controller= h300snvdUScpe:2.3:a:netapp:hci_baseboard_management_controller:*:*:*:*:*:*:*:*
netapp hci baseboard management controller= h410cnvdUScpe:2.3:a:netapp:hci_baseboard_management_controller:*:*:*:*:*:*:*:*
netapp hci baseboard management controller= h410snvdUScpe:2.3:a:netapp:hci_baseboard_management_controller:*:*:*:*:*:*:*:*
netapp hci baseboard management controller= h500snvdUScpe:2.3:a:netapp:hci_baseboard_management_controller:*:*:*:*:*:*:*:*
netapp hci baseboard management controller= h700snvdUScpe:2.3:a:netapp:hci_baseboard_management_controller:*:*:*:*:*:*:*:*

advisories (1)

Vendor and ecosystem advisories describing this.

WID-SEC-W-2023-1188Linux Kernel: Schwachstelle ermöglicht Offenlegung von InformationenDeutsch2023-05-09csaf · cert_bundDE
Ein lokaler Angreifer kann eine Schwachstelle im Linux Kernel ausnutzen, um Informationen offenzulegen.

also known as (4)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd fstec_bdu cert_bund nvd NVD CVE.org MITRE

published 2023-06-01modified 2026-06-17

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Related entries.

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+16123 more

references (10)

External citations — patches, advisories, analysis.

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