What is the CVSS score of CVE-2023-38934?

CVE-2023-38934 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: 0.7%.

Is there a public PoC exploit available for CVE-2023-38934?

Yes, a public proof-of-concept exploit is available for CVE-2023-38934. Prioritise patching immediately. EPSS: 0.7%.

Fh1203 Firmware CVE-2023-38934

CRITICAL

Out-of-bounds Write (CWE-787)

2023-08-07 cve@mitre.org

Memory Corruption Buffer Overflow Tenda Fh1203 Firmware F1203 Firmware Fh1205 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

Aug 07, 2023 - 19:15 nvd

CRITICAL 9.8

DescriptionNVD

Tenda F1203 V2.0.1.6, FH1203 V2.0.1.6 and FH1205 V2.0.0.7(775) was discovered to contain a stack overflow via the deviceId parameter in the formSetDeviceName function.

AnalysisAI

Tenda F1203 V2.0.1.6, FH1203 V2.0.1.6 and FH1205 V2.0.0.7(775) was discovered to contain a stack overflow via the deviceId parameter in the formSetDeviceName function. 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 Out-of-bounds Write (CWE-787), which allows attackers to write data beyond allocated buffer boundaries leading to code execution or crashes. Tenda F1203 V2.0.1.6, FH1203 V2.0.1.6 and FH1205 V2.0.0.7(775) was discovered to contain a stack overflow via the deviceId parameter in the formSetDeviceName function. Affected products include: Tenda Fh1203 Firmware, Tenda F1203 Firmware, Tenda Fh1205 Firmware.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Validate write boundaries, use memory-safe languages, enable compiler protections (ASLR, stack canaries).