CVE-2020-19320
CWE-120Published: September 11, 2023· Updated: Jun 17, 2026
Official Description
Buffer overflow vulnerability in DLINK 619L version B 2.06beta via the curTime parameter on login.
Risk Analysis
DLINK 619L firmware contains a buffer overflow vulnerability triggered by the curTime parameter during login. This allows remote attackers to execute arbitrary code, posing a severe risk to device integrity.
The flaw is remotely exploitable with low complexity, though no public exploit is currently known.
Upgrade the device firmware to the latest available version provided by D-Link.
Technical Analysis
CVE-2020-19320 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 (4)
Quick Facts
Related CVEs (CWE-120)
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2020-19320 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts