CVE-2023-45578
CWE-787Published: October 16, 2023· Updated: Jun 17, 2026
Official Description
Buffer Overflow vulnerability in D-Link device DI-7003GV2.D1 v.23.08.25D1 and before, DI-7100G+V2.D1 v.23.08.23D1 and before, DI-7100GV2.D1 v.23.08.23D1, DI-7200G+V2.D1 v.23.08.23D1 and before, DI-7200GV2.E1 v.23.08.23E1 and before, DI-7300G+V2.D1 v.23.08.23D1, and DI-7400G+V2.D1 v.23.08.23D1 and before allows a remote attacker to execute arbitrary code via the pap_en/chap_en parameter of the pppoe_base.asp function.
Risk Analysis
D-Link devices contain a buffer overflow in the pppoe_base.asp function, enabling remote code execution. The critical 9.8 CVSS score highlights the danger of this remotely exploitable flaw.
There is no public exploit known, and it is not in the CISA KEV catalog. It is remotely exploitable.
Users should update their device firmware to the latest version available from D-Link.
Technical Analysis
CVE-2023-45578 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 (2)
Quick Facts
Related CVEs (CWE-787)
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2023-45578 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts