What is the CVSS score of CVE-2023-39671?

CVE-2023-39671 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: 1.1%.

Dir 880L A1 Firmware CVE-2023-39671

CRITICAL

Classic Buffer Overflow (CWE-120)

2023-08-18 cve@mitre.org

Buffer Overflow D-Link Dir 880L A1 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 18, 2023 - 03:15 nvd

CRITICAL 9.8

DescriptionNVD

D-Link DIR-880 A1_FW107WWb08 was discovered to contain a buffer overflow via the function FUN_0001be68.

AnalysisAI

D-Link DIR-880 A1_FW107WWb08 was discovered to contain a buffer overflow via the function FUN_0001be68. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. 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. D-Link DIR-880 A1_FW107WWb08 was discovered to contain a buffer overflow via the function FUN_0001be68. Affected products include: Dlink Dir-880L A1 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.