douzone NeoRS remote support program ActiveX vulnerability

published 2021-11-30 4y ago modified 2026-06-17 4mo ago also EUVD-2020-28812

cvss: 7.5; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 1.7%; EPSS 1.7% chance of exploitation in 30 days, percentile 76%
public exploits: 0; none known

The vulnerabilty was discovered in ActiveX module related to NeoRS remote support program. This issue allows an remote attacker to download and execute remote file. It is because of improper parameter validation of StartNeoRS function in ActiveX.

Is CVE-2020-7880 in your stack? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.

Check with Fencer

Exploit prediction

1.66% chance of exploitation in the next 30 days, higher than 76% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by	version	score	vector
CNA	3.1	7.5	CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
NVD	3.1	8.8	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
NVD	2.0	9.3	AV:N/AC:M/Au:N/C:C/I:C/A:C

Affected products

douzone NeoRS

Classification

Weakness

CWE-20 Improper Input Validation

References

boho.or.kr /krcert/secNoticeView.do?bulletin_writing_sequence=36367
third-party-advisory

Sources

CVE List CVE-2020-7880
NVD CVE-2020-7880

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.