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CVE-2023-0386General(canonical / debian_linux)

LOWCVSS 7.8 · HIGHCISA KEV

Signal is active with 1 mentions in latest observed window

Immediate actions

  • Track advisory updates for patch or workaround availability

Recommended action window: Monitor and triage in normal cycle

NVD description

A flaw was found in the Linux kernel, where unauthorized access to the execution of the setuid file with capabilities was found in the Linux kernel’s OverlayFS subsystem in how a user copies a capable file from a nosuid mount into another mount. This uid mapping bug allows a local user to escalate their privileges on the system.

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1.0/ 10 priority

Sources & remediation

Listed in the CISA Known Exploited Vulnerabilities catalog. Federal remediation due date: 2025-07-08. Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

Patch / fix
Vendor / third-party advisories
Other references
Weakness type (CWE)
CWE-282

Priority

LOW

Exploitation

ACTIVE

PoC

NONE

Patch

AVAILABLE

Momentum

NONE

Are you affected?

If you run products in this scope, you should treat this CVE as relevant to your environment.

  • debian_linux
  • h300s
  • h300s_firmware
  • h410c

Threat summary

  • 1 mentions across 1 observed day

What's happening

  • General: 1 classified signal
  • 1 total mentions across 1 day

Affected systems

Vendors
canonicaldebianlinuxnetapp
Products
debian_linuxh300sh300s_firmwareh410ch410c_firmwareh410sh410s_firmwareh500sh500s_firmwareh700s

6 versions affected across 13 products

Deep dive

Activity timeline1 mentions / 1d
00111Mentions · 2026-03-31: 103-31
Signal classification1 categories
General
1100.0%
Referenced assets2 URLs
Full discourse1 post
  • Mr. OS@ksg93rd
    General

    #Kernel_Security Linux File System Basics Part 1 https://u1f383.github.io/linux/2026/02/26/filesystem-101.html // Overview and CVE-2022-0185 / CVE-2023-5345 Part 2 https://u1f383.github.io/linux/2026/03/04/filesystem-102.html // Isolation, Permission Model and CVE-2023-0386

    Post summary

    The post mentions three Linux kernel CVEs and provides links to two blog posts, but it does not supply any PoC, exploit details, patches, or technical data.

    00034254
    3.3K followersView on X
CPE platform detail20 entries

20 of 20 entries

PartVendorProductVersionTarget SWTarget HW
OScanonicalubuntu_linux18.04--
OScanonicalubuntu_linux20.04--
OScanonicalubuntu_linux22.04--
OSdebiandebian_linux10.0--
OSlinuxlinux_kernel---
OSlinuxlinux_kernel6.2--
OSlinuxlinux_kernel6.2--
OSlinuxlinux_kernel6.2--
OSlinuxlinux_kernel6.2--
OSlinuxlinux_kernel6.2--
HWnetapph300s---
OSnetapph300s_firmware---
HWnetapph410c---
OSnetapph410c_firmware---
HWnetapph410s---
OSnetapph410s_firmware---
HWnetapph500s---
OSnetapph500s_firmware---
HWnetapph700s---
OSnetapph700s_firmware---

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