What is CVE-2020-19319?

CVE-2020-19319 is a critical-severity vulnerability in Dlink Dir-619l, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 9.8/10. Published 2023-09-11.

How severe is CVE-2020-19319?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Buffer overflow in Dlink Dir-619l

CVE-2020-19319

Buffer overflow vulnerability in DLINK 619L version B 2.06beta via the FILECODE parameter on login.

Vulnerability class: Buffer Overflow

Published 2023-09-11 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.009 (58.6th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 59th percentile — 58.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.008 · newest: 0.009 · change: +0.001

Affected products

Dlink Dir-619l — versions b1
Dlink Dir-619l Firmware — versions 2.06

Weakness classification (CWE)

CWE-120 — Buffer Copy without Checking Size of Input (Classic Buffer Overflow)

References

github.com/hhhhu8045759/dir_619l-buffer-overflow (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2020-19319?: CVE-2020-19319 is a critical-severity vulnerability in Dlink Dir-619l, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 9.8/10. Published 2023-09-11.
How severe is CVE-2020-19319?: Critical severity. CVSS v3 base score is 9.8 out of 10.