What is the CVSS score of CVE-2022-38829?

CVE-2022-38829 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: 1.0%.

Is there a public PoC exploit available for CVE-2022-38829?

Yes, a public proof-of-concept exploit is available for CVE-2022-38829. Prioritise patching immediately. EPSS: 1.0%.

Rx9 Pro Firmware CVE-2022-38829

CRITICAL

Classic Buffer Overflow (CWE-120)

2022-09-16 cve@mitre.org

Tenda Buffer Overflow Rx9 Pro 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

Sep 16, 2022 - 15:15 nvd

CRITICAL 9.8

DescriptionNVD

Tenda RX9_Pro V22.03.02.10 is vulnerable to Buffer Overflow via httpd/setMacFilterCfg.

AnalysisAI

Tenda RX9_Pro V22.03.02.10 is vulnerable to Buffer Overflow via httpd/setMacFilterCfg. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.

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. Tenda RX9_Pro V22.03.02.10 is vulnerable to Buffer Overflow via httpd/setMacFilterCfg. Affected products include: Tenda Rx9 Pro Firmware.

RemediationAI

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.