No exploitation reportedFix available

CVE-2020-10603

Q: Is CVE-2020-10603 actively exploited?

Active exploitation of CVE-2020-10603 has not been confirmed. Its EPSS score was 1.2% on 2026-10-22, the estimated probability of exploitation in the next 30 days.

Q: What is the CVSS score for CVE-2020-10603?

CVE-2020-10603 has a CVSS v3 base score of 8.8 (HIGH severity), with vector string CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

No exploitation reported by the sources we read.

Published2020-04-09
Fixed in3.0.2
WeaknessCWE-78

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

WebAccess/NMS (versions prior to 3.0.2) does not properly sanitize user input and may allow an attacker to inject system commands remotely.

Timeline

dates in UTC

2020-04-0914:15CVE publishedNVD

Observed activity

isMalicious corpus · updated 2026-10-23 18:48 UTC

Indicators tagged with this CVE, per day0 indicators over 7 days

Block these indicators

Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2020-10603?format=txt
CSV export: https://api.ismalicious.com/edl/cve/CVE-2020-10603?format=csv
TAXII collection of exploited CVEs
The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD

Advantech webaccess\/nms

Branch	Affected	Fixed in	Source
3.0	< 3.0.2	3.0.2	NVD

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Fix

Update Advantech webaccess\/nms to 3.0.2

Detection

Nuclei template: none so far
Exploit-DB: no entry
Proof-of-concept repositories: none listed

Sources

NVDCVSS 3.18.8read 2026-10-23
NVDCVSS 2.06.5read 2026-10-23
CNAweakness (CWE)CWE-78read 2026-10-23
NVDweakness (CWE)CWE-78read 2026-10-23
FIRST EPSSEPSS score1.2 %2026-10-22

Technical details

CVSS v3 Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Published: 2020-04-09
Last Modified: 2026-06-17
NVD status: Modified

Frequently asked questions

What is CVE-2020-10603?

WebAccess/NMS (versions prior to 3.0.2) does not properly sanitize user input and may allow an attacker to inject system commands remotely.

Is CVE-2020-10603 actively exploited?

Active exploitation of CVE-2020-10603 has not been confirmed. Its EPSS score was 1.2% on 2026-10-22, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2020-10603?

CVE-2020-10603 has a CVSS v3 base score of 8.8 (HIGH severity), with vector string CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

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