CVE-2023-39671
CWE-120Published: August 18, 2023· Updated: Jun 17, 2026
Official Description
D-Link DIR-880 A1_FW107WWb08 was discovered to contain a buffer overflow via the function FUN_0001be68.
Risk Analysis
D-Link DIR-880L routers contain a buffer overflow vulnerability in a specific function, which could allow remote attackers to execute arbitrary code. This critical vulnerability has a CVSS score of 9.8.
There is no public exploit known for this vulnerability, and it is not in the CISA KEV catalog. It is remotely exploitable with low complexity.
Apply the latest firmware updates from D-Link. Disable remote management features to mitigate the risk of unauthorized access.
Technical Analysis
CVE-2023-39671 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.
The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.
A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 9.8.
CVSS v3.1 Vector Breakdown
Affected Vendors & Products
Exploit & PoC Resources
Official Patches & Advisories
All References (6)
Quick Facts
Related CVEs (CWE-120)
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2023-39671 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts