How to fix CVE-2025-21443?

Within 7 days: Identify all affected systems and apply vendor patches promptly. If patching is delayed, consider network segmentation to limit exposure.

Is Qam8255p Firmware affected by CVE-2025-21443?

CVE-2025-21443 presents notable security risk, a buffer overflow vulnerability rated CVSS 7.8. Exploitation could allow attackers to corrupt memory, crash the application, or potentially execute arbitrary code.

CVE-2025-21443

HIGH

2025-04-07 [email protected]

7.8

CVSS 3.1

CVSS Vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Lifecycle Timeline

Analysis Generated

Mar 28, 2026 - 18:35 vuln.today

CVE Published

Apr 07, 2025 - 11:15 nvd

HIGH 7.8

Tags

Buffer Overflow Qam8255p Firmware Qam8295p Firmware Qam8620p Firmware Qam8650p Firmware Qam8775p Firmware Qamsrv1h Firmware Qamsrv1m Firmware Qca6574a Firmware Qca6574au Firmware Qca6595 Firmware Qca6595au Firmware Qca6688aq Firmware Qca6696 Firmware Qca6698aq Firmware Sa6145p Firmware Sa6150p Firmware Sa6155 Firmware Sa6155p Firmware Sa7255p Firmware Sa7775p Firmware Sa8145p Firmware Sa8150p Firmware Sa8155 Firmware Sa8155p Firmware Sa8195p Firmware Sa8255p Firmware Sa8295p Firmware Sa8540p Firmware Sa8620p Firmware Sa8650p Firmware Sa8770p Firmware Sa8775p Firmware Sa9000p Firmware Srv1h Firmware Srv1l Firmware Srv1m Firmware

Description

Memory corruption while processing message content in eAVB.

Analysis

Memory corruption while processing message content in eAVB. Rated high severity (CVSS 7.8), this vulnerability is low attack complexity. No vendor patch available.

Technical Context

This vulnerability is classified as Buffer Copy without Size Check (CWE-120), which allows attackers to overflow a buffer to corrupt adjacent memory. Affected products include: Qualcomm Qam8255P Firmware, Qualcomm Qam8295P Firmware, Qualcomm Qam8620P Firmware, Qualcomm Qam8650P Firmware, Qualcomm Qam8775P Firmware.

Affected Products

Qualcomm Qam8255P Firmware, Qualcomm Qam8295P Firmware, Qualcomm Qam8620P Firmware, Qualcomm Qam8650P Firmware, Qualcomm Qam8775P Firmware.

Remediation

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Always validate buffer sizes before copy operations. Use bounded functions (strncpy, snprintf). Enable compiler protections.

Priority Score

Low Medium High Critical

KEV: 0

EPSS: +0.1

CVSS: +39

POC: 0

CVE-2025-21443 vulnerability details – vuln.today

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CVE-2025-21443

CVSS Vector

Lifecycle Timeline

Tags

Description

Analysis

Technical Context

Affected Products

Remediation

Priority Score

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External POC / Exploit Code