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Security Digest · Vulnerability record · Known exploited

CVE-2024-50302: Linux Kernel Use of Uninitialized Resource Vulnerability

Exploited in the wild (CISA KEV). In the Linux kernel, the following vulnerability has been resolved: HID: core: zero-initialize the report buffer Since the report buffer is used by all kinds of drivers in various ways, let's zero-initialize it during allocation to make sure that it can't be ever used to leak kernel…

CISA KEV · added 2025-03-04 CVSS 5.5 Medium EPSS 0.8% · p56

Updated By erroneo.us Security Desk17 references Seen in the digest for Mar 4, 2025

Should you act?

Exploited: patch now if you run it

CISA has confirmed exploitation in the wild. This signal is computed from CISA KEV, EPSS and CVSS data; it is not an editorial verdict.

  • Yes, if you run Linux Kernel. CISA added this CVE to its Known Exploited Vulnerabilities catalog on 2025-03-04, which means there is reliable evidence of exploitation in the wild. US federal agencies must remediate by 2025-03-25; treat that as the outer limit, not the target.
  • EPSS 0.8%, percentile 56: FIRST’s model estimates a 0.8% chance of exploitation activity in the next 30 days, higher than 56% of all scored CVEs (moderate). EPSS is a probability, not a verdict.
  • Needs local access needed. Lower urgency for most teams unless an attacker could already run code on the machine.

What it is

In the Linux kernel, the following vulnerability has been resolved: HID: core: zero-initialize the report buffer Since the report buffer is used by all kinds of drivers in various ways, let's zero-initialize it during allocation to make sure that it can't be ever used to leak kernel memory via specially-crafted report.

CISA’s summary

The Linux kernel contains a use of uninitialized resource vulnerability that allows an attacker to leak kernel memory via a specially crafted HID report.

Weakness type: CWE-908.

Product: Linux Kernel · Assigned by: Linux · Published: 2024-11-19

Affected and fixed versions

VendorProductAffected versions (per CVE record)
LinuxLinux27ce405039bfe6d3f4143415c638f56a3df77dca < e7ea60184e1e88a3c9e437b3265cbb6439aa7e26, 27ce405039bfe6d3f4143415c638f56a3df77dca < 3f9e88f2672c4635960570ee9741778d4135ecf5, 27ce405039bfe6d3f4143415c638f56a3df77dca < d7dc68d82ab3fcfc3f65322465da3d7031d4ab46, 27ce405039bfe6d3f4143415c638f56a3df77dca <…
LinuxLinux3.12

Severity scores

Scored byCVSSScoreVector
CISA-ADP3.15.5 MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
  • Attack vector: local access needed
  • Attack complexity: low
  • Privileges required: low (any account)
  • User interaction: none
  • Scope: unchanged

CVSS measures how bad a flaw is if exploited, not how likely exploitation is. Read it next to the exploitation data below.

Exploitation and urgency

  • CISA KEV: added 2025-03-04; federal due date 2025-03-25. Known ransomware use: Unknown.
  • CISA required action: Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
  • CISA SSVC assessment: exploitation active, automatable no, technical impact partial.
  • FIRST EPSS (model of 2026-10-21): 0.81% probability of exploitation activity in the next 30 days; percentile 56.

Timeline

  • — CVE record published by Linux
  • — Added to CISA’s Known Exploited Vulnerabilities catalog
  • — CISA remediation deadline for US federal agencies
  • — CVE record last updated

Sources and references

Original sources first. Version and fix details should always be confirmed against the vendor or project advisory.

Vendor and project advisories, patches

  1. Listed in CISA KEV notes (lore.kernel.org) lore.kernel.org
  2. Listed in CISA KEV notes (source.android.com) source.android.com

Vulnerability records

  1. CVE.org record CVE-2024-50302 cve.org
  2. NVD entry CVE-2024-50302 nvd.nist.gov

Government

  1. CISA Known Exploited Vulnerabilities catalog entry cisa.gov

Other references from the CVE record and advisory

  1. git.kernel.org git.kernel.org
  2. git.kernel.org git.kernel.org
  3. git.kernel.org git.kernel.org
  4. git.kernel.org git.kernel.org
  5. git.kernel.org git.kernel.org
  6. git.kernel.org git.kernel.org
  7. git.kernel.org git.kernel.org
  8. git.kernel.org git.kernel.org
  9. lists.debian.org lists.debian.org
  10. lists.debian.org lists.debian.org
  11. cert-portal.siemens.com cert-portal.siemens.com
  12. cert-portal.siemens.com cert-portal.siemens.com

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