CVE-2026-24928

5.8 MEDIUM

📋 TL;DR

This CVE describes an out-of-bounds write vulnerability in a file system module that could allow attackers to write data beyond allocated memory boundaries. Successful exploitation could affect service confidentiality, potentially exposing sensitive information. The vulnerability affects Huawei products and requires local access or specific conditions to exploit.

💻 Affected Systems

Products:
  • Huawei products (specific models not detailed in provided reference)
Versions: Not specified in provided information
Operating Systems: Not specified
Default Config Vulnerable: ⚠️ Yes
Notes: Based on CWE-680 (Integer Overflow to Buffer Overflow), likely affects systems with specific file system operations. Check Huawei advisory for specific product details.

⚠️ Risk & Real-World Impact

🔴

Worst Case

Complete system compromise leading to data exfiltration, privilege escalation, or denial of service through memory corruption.

🟠

Likely Case

Information disclosure or limited data corruption affecting specific services using the vulnerable file system module.

🟢

If Mitigated

Minimal impact with proper memory protection mechanisms and access controls in place.

🌐 Internet-Facing: LOW - Requires local access or specific conditions; not directly exploitable over network.
🏢 Internal Only: MEDIUM - Could be exploited by malicious insiders or through lateral movement within compromised networks.

🎯 Exploit Status

Public PoC: ✅ No
Weaponized: UNKNOWN
Unauthenticated Exploit: ✅ No
Complexity: MEDIUM

Out-of-bounds write vulnerabilities typically require specific conditions and knowledge of memory layout. CVSS 5.8 suggests moderate exploit complexity.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: Not specified in provided information

Vendor Advisory: https://consumer.huawei.com/en/support/bulletin/2026/2/

Restart Required: Yes

Instructions:

1. Visit Huawei security advisory page. 2. Identify affected products and versions. 3. Download and apply recommended patches. 4. Restart affected systems. 5. Verify patch application.

🔧 Temporary Workarounds

Restrict file system access

linux

Limit access to vulnerable file system modules through permissions and access controls

chmod 600 /path/to/vulnerable/module
setfacl -m u:root:rw /path/to/vulnerable/module

Enable memory protection

linux

Activate ASLR and other memory protection mechanisms

sysctl -w kernel.randomize_va_space=2

🧯 If You Can't Patch

  • Implement strict access controls and least privilege principles for file system operations
  • Monitor system logs for unusual file system activity and memory access patterns

🔍 How to Verify

Check if Vulnerable:

Check Huawei advisory for affected product versions and compare with installed versions

Check Version:

Check product-specific version command (varies by Huawei product)

Verify Fix Applied:

Verify patch version matches Huawei's recommended fixed version and test file system operations

📡 Detection & Monitoring

Log Indicators:

  • Unusual file system access patterns
  • Memory access violations in system logs
  • Failed file operations with error codes

Network Indicators:

  • Not applicable - local vulnerability

SIEM Query:

source="system_logs" AND ("memory violation" OR "buffer overflow" OR "file system error")

🔗 References

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