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High 7.8Published Oct 25, 2023

CVE-2023-5717Out-of-bounds write in Linux kernel's Linux Kernel Performance Events (perf) component

Updated under an hour ago ()

Does this affect you?

It affects Linux Kernel and 8 other products. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

A heap out-of-bounds write vulnerability in the Linux kernel's Linux Kernel Performance Events (perf) component can be exploited to achieve local privilege escalation. If perf_read_group() is called while an event's sibling_list is smaller than its child's sibling_list, it can increment or write to memory locations outside of the allocated buffer. We recommend upgrading past commit 32671e3799ca2e4590773fd0e63aaa4229e50c06.

CVSS
7.8 HIGH (v3.1, CNA)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness (CWE)
CWE-787
Known exploited
Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days)
Not loaded for this CVE
Assigned by
Google
NVD analysis
Modified
Record last updated
Oct 14, 2026
First seen by InfoSec Signals
Oct 14, 2026

Affected products

Affected products
Linux Kernel
linux:kernel (from the name)
from 4.4 before 6.6
CNA record
Siemens RUGGEDCOM RST2428P
siemens:ruggedcom_rst2428p (from the name)
all versions not affected
CISA ADP
Siemens SCALANCE XC-300/XR-300/XC-400/XR-500WG/XR-500 family
siemens:scalance_xc_300_xr_300_xc_400_xr_500wg_xr_500_family (from the name)
all versions not affected
CISA ADP
Siemens SCALANCE XCM-/XRM-/XCH-/XRH-300 family
siemens:scalance_xcm_xrm_xch_xrh_300_family (from the name)
all versions not affected
CISA ADP
Siemens SIMATIC S7-1500 CPU 1518-4 PN/DP MFP
siemens:simatic_s7_1500_cpu_1518_4_pn_dp_mfp (from the name)
from V3.1.0 before V3.1.5
CISA ADP
Siemens SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP
siemens:simatic_s7_1500_cpu_1518f_4_pn_dp_mfp (from the name)
from V3.1.0 before V3.1.5
CISA ADP
Siemens SIMATIC S7-1500 TM MFP - GNU/Linux subsystem
siemens:simatic_s7_1500_tm_mfp_gnu_linux_subsystem (from the name)
before V1.1
CISA ADP
Siemens SIPLUS S7-1500 CPU 1518-4 PN/DP MFP
siemens:siplus_s7_1500_cpu_1518_4_pn_dp_mfp (from the name)
from V3.1.0 before V3.1.5
CISA ADP
linux linux_kernel
linux:linux_kernel
from 3.2.95 before 3.3; from 3.16.50 before 3.17; from 4.4 before 4.14.328; from 4.15 before 4.19.297; from 4.20 before 5.4.259; from 5.5 before 5.10.199; from 5.11 before 5.15.137; from 5.16 before 6.1.60; and 7 more ranges
NVD

References

  • patch, mailing-list
  • patch
  • mailing-list, third-party-advisory
  • mailing-list, third-party-advisory

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.

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CVE-2023-5717: Out-of-bounds write in Linux kernel's Linux Kernel Performance Events (perf) component | InfoSec Signals