What is the CVSS score of CVE-2022-34756?

CVE-2022-34756 has a CVSS 3.1 base score of 9.8 (Critical). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H. EPSS exploitation probability: 1.5%.

Is there a patch available for CVE-2022-34756?

Yes, a patch is available for CVE-2022-34756. Update the affected software to the latest version immediately.

Easergy P5 Firmware CVE-2022-34756

CRITICAL

Classic Buffer Overflow (CWE-120)

2022-07-13 cybersecurity@se.com

RCE Buffer Overflow Easergy P5 Firmware

9.8

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

9.8 CRITICAL

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

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Lifecycle Timeline

CVE Published

Jul 13, 2022 - 21:15 nvd

CRITICAL 9.8

DescriptionNVD

AnalysisAI

A CWE-120: Buffer Copy without Checking Size of Input vulnerability exists that could result in remote code execution or the crash of HTTPs stack which is used for the device Web HMI. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. This Buffer Copy without Size Check vulnerability could allow attackers to overflow a buffer to corrupt adjacent memory.

Technical ContextAI

This vulnerability is classified as Buffer Copy without Size Check (CWE-120), which allows attackers to overflow a buffer to corrupt adjacent memory. A CWE-120: Buffer Copy without Checking Size of Input vulnerability exists that could result in remote code execution or the crash of HTTPs stack which is used for the device Web HMI. Affected Products: Easergy P5 (V01.401.102 and prior) Affected products include: Schneider-Electric Easergy P5 Firmware.

RemediationAI

A vendor patch is available. Apply the latest security update as soon as possible. Always validate buffer sizes before copy operations. Use bounded functions (strncpy, snprintf). Enable compiler protections.