What is CVE-2020-25782?

CVE-2020-25782 is a critical-severity vulnerability in Accfly 720p, classified under Out-of-bounds Write. CVSS score: 9.8/10. Published 2021-01-28.

How severe is CVE-2020-25782?

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

Is CVE-2020-25782 known to be exploited?

4 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Buffer overflow in Accfly 720p

CVE-2020-25782

An issue was discovered on Accfly Wireless Security IR Camera 720P System with software versions v3.10.73 through v4.15.77. There is an unauthenticated stack-based buffer overflow in the function CNetClientManage::ServerIP_Proto_Set during incoming message handling.

Vulnerability class: Buffer Overflow

Published 2021-01-28 · 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: 0.029 (86.6th percentile), scored 2026-10-03.

Low probability of exploitation in the next 30 days, but still tracked. 87th percentile — 86.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.029 · newest: 0.029 · change: 0.000

Affected products

Weakness classification (CWE)

CWE-787 — Out-of-bounds Write

Public proof-of-concept exploits

References

github.com/tezeb/accfly/blob/master/Readme.md (Technical Description, Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2020-25782?: CVE-2020-25782 is a critical-severity vulnerability in Accfly 720p, classified under Out-of-bounds Write. CVSS score: 9.8/10. Published 2021-01-28.
How severe is CVE-2020-25782?: Critical severity. CVSS v3 base score is 9.8 out of 10.
Is CVE-2020-25782 known to be exploited?: 4 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.