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The vulnerability of the perf/core component in the Linux operating system’s kernel allows a hacker to trigger a service failure.

🗓️ 28 Sep 2025 00:00:00Reported by FSTEC of Russia — Information Security Threat DatabaseType 
bdu_fstec
 bdu_fstec🔗 bdu.fstec.ru👁 1 Views

The perf core vulnerability in the Linux kernel can disclose information and trigger a service failure.

Related
Refs
ReporterTitlePublishedViews
Family
AstraLinux		Astra Linux – Vulnerability in Linux 5.10
19 Jun 202611:10
–astralinux
CNNVD		Linux kernel 安全漏洞
27 Mar 202500:00
–cnnvd
CVE		CVE-2025-21889
27 Mar 202514:57
–cve
Cvelist		CVE-2025-21889 perf/core: Add RCU read lock protection to perf_iterate_ctx()
27 Mar 202514:57
–cvelist
Debian CVE		CVE-2025-21889
27 Mar 202514:57
–debiancve
Oracle linux		Unbreakable Enterprise kernel security update
17 Jul 202500:00
–oraclelinux
EUVD		EUVD-2025-8473
3 Oct 202520:07
–euvd
Hewlett-Packard		HP ThinPro 8.1 SP8 Security Updates
27 Oct 202500:00
–hp
NVD		CVE-2025-21889
27 Mar 202515:15
–nvd
OpenVAS		Ubuntu: Security Advisory (USN-7764-1)
25 Sep 202500:00
–openvas
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SourceLink
gitwww.git.kernel.org/linus/0fe8813baf4b2e865d3b2c735ce1a15b86002c74
gitwww.git.kernel.org/stable/c/0fe8813baf4b2e865d3b2c735ce1a15b86002c74
gitwww.git.kernel.org/stable/c/a2475ccad6120546ea45dbcd6cd1f74dc565ef6b
gitwww.git.kernel.org/stable/c/dd536566dda9a551fc2a2acfab5313a5bb13ed02
gitwww.git.kernel.org/stable/c/f390c2eea571945f357a2d3b9fcb1c015767132e
githubwww.github.com/torvalds/linux/commit/0fe8813baf4b2e865d3b2c735ce1a15b86002c74
nvdwww.nvd.nist.gov/vuln/detail/CVE-2025-21889
security-trackerwww.security-tracker.debian.org/tracker/CVE-2025-21889
wikiwww.wiki.astralinux.ru/astra-linux-se18-bulletin-2025-0811SE18
xn--80ahaefyxhnwww.xn--80ahaefyxhn.xn--j1afgaq.xn--p1ai/bin/view/%D0%9E%D0%A1%D0%BD%D0%BE%D0%B2%D0%B0/%D0%9E%D0%B1%D0%BD%D0%BE%D0%B2%D0%BB%D0%B5%D0%BD%D0%B8%D1%8F/2.13/
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17 Feb 2026 00:00Current
6.7Medium risk
Vulners AI Score6.7
CVSS 24.6
CVSS 35.5
EPSS0.00178
perf core vulnerabilitylinux kernelinformation disclosureservice failureattacker impact
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