HIGH

CVE-2021-21915

CVSS v3

8.8

HIGH

EPSS Score

1.4 %

exploit probability, as of 2026-10-19

CISA KEV

known exploited

Exploitation

—

SSVC status

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Affected and fixed versions

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Vendor advisories

ICSA-21-348-01 CISA1 known affected
Advantech R-SeeNet
R-SeeNet: Versions 2.4.16 and prior

Full record on NVD

Description

An exploitable SQL injection vulnerability exist in the ‘group_list’ page of the Advantech R-SeeNet 2.4.15 (30.07.2021). A specially-crafted HTTP request at ‘company_filter’ parameter. An attacker can make authenticated HTTP requests to trigger this vulnerability. This can be done as any authenticated user or through cross-site request forgery.

Technical details

Published: 2021-12-22

Frequently asked questions

What is CVE-2021-21915?

Is CVE-2021-21915 actively exploited?

Active exploitation of CVE-2021-21915 has not been confirmed. Its EPSS score was 1.4% on 2026-10-19, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2021-21915?

CVE-2021-21915 has a CVSS v3 base score of 8.8 (HIGH severity).

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