Critical· 9.8official fix available
CVE-2023-52515
A critical flaw in the Linux kernel’s RDMA/SRP driver can let attackers cause a use‑after‑free, potentially crashing the system or allowing arbitrary code execution.
publishedMar 2, 2024
last modifiedAug 4, 2026
sourcesNVD
severity · cvss
9.8
critical · how bad it is
exploitation · epss
<1%
46th 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, especially versions before the fix (e.g., 6.6 and earlier) on systems using RDMA/SRP.
02
Real-world impact
An attacker could crash the kernel or execute code with kernel privileges, leading to denial of service or full system compromise.
03
Why this severity
The CVSS score of 9.8 reflects the vulnerability’s ability to be exploited remotely with no authentication, no user interaction, and full compromise of confidentiality, integrity, and availability.
04
What to do about it
official fix available
recommended steps
- 01Upgrade your Linux kernel to a version that includes the fix for CVE-2023-52515.
- 02Reboot the system to load the new kernel.
NVD-referenced vendor advisory
05
Timeline
- Mar 2, 2024 · Mar 2, 2024PublishedDisclosed and added to the National Vulnerability Database.
- Aug 4, 2026 · 2d agoAdvisory updatedThe NVD record was last revised.
- Aug 5, 2026 · 19h agoOfficial fix availableA 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
(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 →