Vulnary
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Critical· 9.8official fix available

CVE-2022-48788

A critical use‑after‑free bug in the Linux kernel’s NVMe‑RDMA driver could let an attacker crash the system or gain control. The flaw was fixed in a kernel update.

publishedJul 16, 2024
last modifiedAug 4, 2026
sourcesNVD
severity · cvss
9.8
critical · how bad it is
exploitation · epss
<1%
57th percentile · chance of exploitation in 30 days
(ai-assisted) A model wrote this summary from the official data, so double-check it against the source before you act on it. Read the official advisory →
auto-deletes from the system
counting…on Sep 4, 2026

An official fix is available, so this entry is kept for 30 days and then removed automatically.

01

Who is affected

Linux kernel, specifically versions before 5.17 that include the nvme‑rdma driver.

02

Real-world impact

An attacker could crash the kernel or execute arbitrary code with kernel privileges by triggering the use‑after‑free in the NVMe‑RDMA error recovery path.

03

Why this severity

The CVSS score of 9.8 reflects that the vulnerability is exploitable over the network with no authentication, can lead to full compromise, and requires no user interaction.

04

What to do about it

official fix available
recommended steps
  1. 011. Update the Linux kernel to version 5.17 or later, which contains the nvme‑rdma use‑after‑free fix.
  2. 022. Reboot the system to load the updated kernel.

NVD-referenced vendor advisory

05

Timeline

  1. Jul 16, 2024 · Jul 16, 2024
    Published
    Disclosed and added to the National Vulnerability Database.
  2. Aug 4, 2026 · 2d ago
    Advisory updated
    The NVD record was last revised.
  3. Aug 5, 2026 · 1d ago
    Official fix available
    A vendor patch or mitigation now exists — see the remediation steps above.
06

How it’s attacked

Attack vectorNetwork (remote)
Attack complexityLow
Privileges requiredNone
User interactionNone needed
ScopeUnchanged
Confidentiality impactHigh
Integrity impactHigh
Availability impactHigh
07

References & advisories

NVD advisory ↗Search advisories ↗
(ai-assisted) A model wrote this summary from the official data, so double-check it against the source before you act on it. Read the official advisory →