CVE-2023-27718
CWE-787Published: April 9, 2023· Updated: Jun 17, 2026
Official Description
D-Link DIR878 1.30B08 was discovered to contain a stack overflow in the sub_498308 function. This vulnerability allows attackers to cause a Denial of Service (DoS) or execute arbitrary code via a crafted payload.
Risk Analysis
D-Link DIR878 firmware version 1.30B08 is affected by a stack overflow in the sub_498308 function. This critical vulnerability permits remote attackers to perform a denial of service or achieve arbitrary code execution.
No public exploit is known, and the vulnerability is not tracked in the CISA KEV catalog. It is remotely exploitable with low attack complexity.
Ensure the device firmware is updated to the latest version provided by the manufacturer.
Technical Analysis
CVE-2023-27718 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.
From a weakness classification perspective (CWE-787): Out-of-bounds write vulnerabilities can lead to data corruption, crashes, or arbitrary code execution.
CVSS v3.1 Vector Breakdown
Affected Vendors & Products
Exploit & PoC Resources
Official Patches & Advisories
All References (4)
Quick Facts
Related CVEs (CWE-787)
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2023-27718 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts