CVE-2024-50302VulnerabilityPublished 10 Mar 2025Updated 1 Sep 2026

Red Hat Security Advisory: kernel-rt security update

Affects Linux kernelSource GCVE Database

Mentioned vulnerabilities

CVE-2024-53197

Exploited in the wild · KEV due 25 Mar 2025 : upgrade Linux kernel to 9.3 now.

Data as of 26 Oct 2026, 14:05 UTC

Exploitation

Actively exploited

High severity · No CVSS score from NVD or the CNA

KEV deadline: 25 Mar 2025 US federal agencies must patch by this date; a sensible deadline for everyone else. Other KEV due dates
EPSS: 0.8% chance of exploitation in 30 days – higher than 56% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch: Available – fixed in 9.3

Exploitation evidence

t = 0 is the CVE’s publication on cve.org

Disclosed: evidence found.
CVE published 10 Mar 2025
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: evidence found.
Listed in CISA KEV 6 days before disclosure
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors

Added to CISA KEV (opens in a new tab)
exploitation confirmed
4 Mar 2025, 6 days before disclosure
CVE published
on cve.org
10 Mar 202503:19 UTC, t = 0
KEV remediation due
US federal deadline
25 Mar 2025, 15 days after disclosure

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), CISA KEV (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.

Disclosed: The CVE record is public on cve.org. Its publication is t = 0.
Detectable: A public nuclei template can find exposed instances, for defenders and attackers alike.
Weaponised: Public exploit code exists in Metasploit or Exploit-DB, or CISA SSVC or the CVSS exploit maturity reports a public proof of concept.
Exploited in the wild: CISA KEV lists it, CISA SSVC rates exploitation active, or a source reports attacks.
Observed by OffSeq Mirage: OffSeq Mirage honeypot sensors recorded attack traffic for this CVE, or found exposed hosts without attack traffic.

Moments are spaced evenly, not to scale; a dashed line marks a gap of six months or more. Deltas count from t = 0. Sources that give only a date (CISA KEV, Exploit-DB, or a time of exactly 00:00Z) read “same day” rather than hours. Metasploit modules carry the flaw’s disclosure date, not their release date, and nuclei templates carry no date, so both appear above but not on the timeline.

What to do

Upgrade Linux kernel to 9.3.

Affected software

Product	Affected	Fixed in
Red Hat Product Security Red Hat	Affected >=9.2 <9.3	Fixed in 9.3

Description

Red Hat released a security update for the kernel-rt packages, which provide the Real Time Linux Kernel for systems requiring high determinism. The update addresses two vulnerabilities: CVE-2024-50302, which fixes an issue in the HID core by zero-initializing the report buffer, and CVE-2024-53197, which fixes potential out-of-bound accesses in the ALSA usb-audio driver for Extigy and Mbox devices. The update is rated as Important by Red Hat and requires a system reboot to take effect.

Impact

The vulnerabilities could lead to memory safety issues such as use of uninitialized memory or out-of-bound accesses, which may affect system stability or security. Red Hat rates the security impact as Important, indicating a significant but not critical risk. There are no known exploits in the wild at this time.

Mitigation

Red Hat has released an official security update for the kernel-rt packages that addresses these vulnerabilities. Users should apply the update for Red Hat Enterprise Linux 9.2 Extended Update Support and reboot the system to ensure the fixes take effect. Refer to Red Hat's official advisory and update instructions at https://access.redhat.com/articles/11258.

CWE-908Use of Uninitialized Resource (opens in a new tab)
Base weaknessLikelihood of exploit: Medium
The product uses or accesses a resource that has not been initialized.
Implementation
Explicitly initialize the resource before use. If this is performed through an API function or standard procedure, follow all required steps.
Implementation
Pay close attention to complex conditionals that affect initialization, since some branches might not perform the initialization.
Implementation
Avoid race conditions (CWE-362) during initialization routines.
From MITRE CWE, MITRE CAPEC and OWASP (Top 10, OpenCRE).
CWE-120Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') (opens in a new tab)
Base weaknessLikelihood of exploit: HighCWE Top 25 (2025): #11
The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer.
Requirements · Language Selection
Use a language that does not allow this weakness to occur or provides constructs that make this weakness easier to avoid.
Architecture and Design · Libraries or Frameworks
Use a vetted library or framework that does not allow this weakness to occur or provides constructs that make this weakness easier to avoid.
Operation · Build and Compilation · Environment Hardening
Use automatic buffer overflow detection mechanisms that are offered by certain compilers or compiler extensions. Examples include: the Microsoft Visual Studio /GS flag, Fedora/Red Hat FORTIFY_SOURCE GCC flag, StackGuard, and ProPolice, which provide various mechanisms including canary-based detection and range/index…
OWASP Cheat Sheets
Docker Security (opens in a new tab)
XML Security (opens in a new tab)
OWASP ASVS 4.0.3
V5.4.1 (opens in a new tab)
V14.1.2 (opens in a new tab)
V13.3.1 (opens in a new tab)
Attack patterns
Buffer Overflow via Environment Variables (opens in a new tab)
Overflow Buffers (opens in a new tab)
Client-side Injection-induced Buffer Overflow (opens in a new tab)
Filter Failure through Buffer Overflow (opens in a new tab)
MIME Conversion (opens in a new tab)
From MITRE CWE, MITRE CAPEC and OWASP (Top 10, OpenCRE).

References

Community reviews

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Exploitation evidence

Timeline

What to do

Affected software

Description

AI analysisMachine-generated, updated 12 Sep 2026, 22:31 UTC

WeaknessesCWE-908, CWE-120

Technical details

References

Community reviews

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