Security Resilience

CVE-2025-71068

Memory Safety in Linux Kernel 5.11 – 5.15.198

Published
13 January 2026
Modified
19 October 2026
Patch / advisory
CVSS Score v3.1 9.8
Click a component to see what it means
Raw vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS Score 0.0036 28th percentile
Risk Priority 71 floored blend · peak EPSS

CVSS and EPSS are reproduced from their sources (NVD, FIRST EPSS). Risk Priority is our own derived reading, not an NVD score.

Summary

CVE-2025-71068 is a critical-severity Out-of-bounds Read (CWE-125) vulnerability in Linux Linux Kernel. Its CVSS base score is 9.8 (Critical).

Operationally, exploitation aligns with the MITRE ATT&CK technique Endpoint Denial of Service (T1499); ranked at the 28th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.

Deeper analysis AI-assisted summary

Synthesised by an AI model from the NVD description and linked references — a reading aid, not an authoritative source.

CVE-2025-71068 is a vulnerability in the Linux kernel's svcrdma component, specifically in the svc_rdma_copy_inline_range function used in the inline data path. The issue arises from indexing rqstp->rq_pages[rc_curpage] without verifying that rc_curpage remains within the bounds of the allocated page array, potentially leading to out-of-bounds access. This flaw has a CVSS v3.1 base score of 7.8 (AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H), indicating high severity with significant impacts on confidentiality, integrity, and availability.

A local attacker with low privileges can exploit this vulnerability due to its low attack complexity and lack of user interaction requirements. Successful exploitation could allow the attacker to read, modify, or corrupt kernel memory beyond the intended array bounds, potentially resulting in arbitrary code execution, privilege escalation, denial of service, or data leakage within the kernel context.

Mitigation is provided through kernel patches available in stable branches, as detailed in the following commit references: https://git.kernel.org/stable/c/5f140b525180c628db8fa6c897f138194a2de417, https://git.kernel.org/stable/c/7ba826aae1d43212f3baa53a2175ad949e21926e, https://git.kernel.org/stable/c/a22316f5e9a29e4b92030bd8fb9435fe0eb1d5c9, https://git.kernel.org/stable/c/d1bea0ce35b6095544ee82bb54156fc62c067e58, and https://git.kernel.org/stable/c/da1ccfc4c452541584a4eae89e337cfa21be6d5a. These commits add bounds checks before the initial use of rc_curpage and after advancing to a new page, resolving the issue. Security practitioners should apply these updates to affected Linux kernel versions supporting svcrdma.

EU & UK References

Vulnerability Data

In the Linux kernel, the following vulnerability has been resolved: svcrdma: bound check rq_pages index in inline path svc_rdma_copy_inline_range indexed rqstp->rq_pages[rc_curpage] without verifying rc_curpage stays within the allocated page array. Add guards before the first use and after advancing to…

more

a new page.

CWE(s)

Related Threats

MITRE ATT&CK Enterprise Techniques

T1499 Endpoint Denial of Service Impact
Adversaries may perform Endpoint Denial of Service (DoS) attacks to degrade or block the availability of services to users.
T1068 Exploitation for Privilege Escalation Privilege Escalation
Adversaries may exploit software vulnerabilities in an attempt to elevate privileges.
T1185 Browser Session Hijacking Collection
Adversaries may take advantage of security vulnerabilities and inherent functionality in browser software to change content, modify user-behaviors, and intercept information as part of various browser session hijacking techniques.
T1190 Exploit Public-Facing Application Initial Access
Adversaries may attempt to exploit a weakness in an Internet-facing host or system to initially access a network.
T1203 Exploitation for Client Execution Execution
Adversaries may exploit software vulnerabilities in client applications to execute code.
T1211 Exploitation for Stealth Stealth
Adversaries may exploit vulnerabilities to evade detection by hiding activity, suppressing logging, or operating within trusted or unmonitored components.
Derived from this CVE’s CWE(s) via the direct CWE→ATT&CK cross-walk.

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Affected Assets

linux
linux kernel
6.19 · 5.11 — 5.15.198 · 6.0 — 6.6.120 · 6.12 — 6.12.64

Mitigating Controls

Mitigating Controls (NIST CSF 2.0) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→CSF cross-walk (authority under review) — links open the control.

PR.PS-06 mostly match
blocks

Secure-development practices such as bounds checking and memory-safe languages directly prevent out-of-bounds reads.

ID.RA-01 partial match
blocks

Vulnerability scanning and recording can discover instances of out-of-bounds reads after code is deployed.

PR.PS-02 partial match
blocks

Routine patching replaces vulnerable code containing out-of-bounds read flaws.

Mitigating Controls (ISO/IEC 27001:2022 Annex A) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→ISO cross-walk (authority under review) — links open the control.

finds

Security testing in development and acceptance includes fuzzing and static analysis that detect out-of-bounds read defects before release.

prevents

Secure coding standards explicitly forbid unsafe pointer arithmetic and mandate bounds-checked reads, eliminating CWE-125.

References