CVE-2023-5717: Out-of-bounds write in Linux kernel's Linux Kernel Performance Events (perf) component
Vulnerability summary
CVE-2023-5717 is a high (CVSS 7.8) Out-of-bounds Write vulnerability in linux kernel. EPSS estimates a 0.91% chance of exploitation in the next 30 days, higher than 60% of scored vulnerabilities.
Not severe (CVSS 7.8, local access); no exploitation reported by the 5 checked sources
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 63 · Related 51Timeline
- 25-10-2023PublishedVulnerability first disclosed.
- 14-10-2026Last modifiedVulnerability information updated.
Description
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 metrics
4 scores · 4 sources · 1 version- OSV · UbuntuEcosystem advisory · calculated7.8HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- OSV · DebianEcosystem advisory · calculated7.8HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- NVDNIST7.8HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS trend
Probability
0.91%
Chance of exploitation in the next 30 days
Percentile
60%
Versus all other CVEs
30-day change
Increase +0.06 pp
From 0.85% on 04-10-2026
Known exploited
Compare KEV catalogs
CISA KEVNot in the CISA KEV catalog.
ENISA CNWNot in the ENISA CNW catalog.
CIRCLNot in the CIRCL catalog.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Known conditions: local access, low-privilege account, no user interaction (CVSS vector). Other conditions: not stated in public data.
Ubuntu109 products
- linux< 4.4.0-248.282 | < 4.15.0-220.231 | < 5.4.0-169.187 | < 5.15.0-91.101
- linux-allwinner-5.19All versions (No fix recorded)
- linux-aws< 4.4.0-1125.131 | < 4.4.0-1163.178 | < 4.15.0-1163.176 | < 5.4.0-1116.126 | < 5.15.0-1051.56
- linux-aws-5.0All versions (No fix recorded)
- linux-aws-5.11All versions (No fix recorded)
Linux2 products
- kernel≥ 4.4, < 6.6
- linux_kernel≥ 3.2.95, < 3.3 | ≥ 3.16.50, < 3.17 | ≥ 4.4, < 4.14.328 | ≥ 4.15, < 4.19.297 | ≥ 4.20, < 5.4.259 | ≥ 5.5, < 5.10.199 | ≥ 5.11, < 5.15.137 | ≥ 5.16, < 6.1.60 | ≥ 6.2, < 6.5.9 | 6.6:rc1 | 6.6:rc2 | 6.6:rc3 | 6.6:rc4 | 6.6:rc5 | 6.6:rc6
Debian1 product
- linux< 6.1.64-1 | < 6.5.10-1
3 vendors · 112 products
