CVE-2014-3153: Linux Kernel Privilege Escalation Vulnerability
Actively exploited. At least one CVE in this advisory is listed in the CISA Known Exploited Vulnerabilities catalog — exploitation has been observed in the wild. Treat remediation as urgent.
The futex_requeue function in kernel/futex.c in Linux kernel does not ensure that calls have two different futex addresses, which allows local users to gain privileges.
CSIRTS triage
- What
- Local users can gain privileges due to improper handling of futex addresses in the futex_requeue function.
- Who is affected
- Local users of the affected Linux kernel versions.
- Urgency
- Immediate remediation is necessary as the vulnerability is actively exploited and rated critical.
- Action
- Apply the latest kernel patches.
AI-assisted analysis generated from the source advisory — verify against the original.
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Details
Original advisory: https://nvd.nist.gov/vuln/detail/CVE-2014-3153
Exploitation outlook
EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.
- Exploitation confirmedCVE-2014-3153Already exploited in the wild (CISA KEV) — the prediction phase is over. Patch now. Riskier than 98% of all scored CVEs.
Referenced CVEs
| CVE | CSIRTS overview | External |
|---|---|---|
| CVE-2014-3153 | coverage & exploitation status | NVD · CVE.org |
Recent advisories for Linux Kernel Privilege
A cluster of recent advisories against the same product widens the attack surface — attackers routinely chain freshly published CVEs on one product, so review these together.
- medium[UPDATE] [medium] Linux Kernel: Vulnerability allows privilege escalationcert-bund · 2026-07-10
- high[UPDATE] [high] Linux Kernel: Vulnerability allows privilege escalationcert-bund · 2026-07-10
- high[UPDATE] [high] Linux Kernel: Vulnerability allows privilege escalationcert-bund · 2026-07-10
- medium[UPDATE] [medium] Linux Kernel: Vulnerability allows privilege escalation and denial of servicecert-bund · 2026-07-07
- high[UPDATE] [high] Linux Kernel: Multiple vulnerabilities allow denial of service and privilege escalationcert-bund · 2026-07-06
- unknownFragnesia Local Privilege Escalation report via ESP-in-TCP in the Linux Kernelaws · 2026-06-05
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