Vulnerability · Published Jul 16, 2021 · Assigned by talos

CVE-2021-21804

High 8.1

In plain English

A high-severity security flaw in Advantech. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 3.7% (higher than 90% of all known vulnerabilities).

Severity (CVSS 3.0)8.1High

Exploit odds (30 days)3.7%top 10.2% of all CVEs

Exploited in the wildNo reportsnot in CISA KEV

Attack toolingNoneno public tooling known

Official description

A local file inclusion (LFI) vulnerability exists in the options.php script functionality of Advantech R-SeeNet v 2.4.12 (20.10.2020). A specially crafted HTTP request can lead to arbitrary PHP code execution. An attacker can send a crafted HTTP request to trigger this vulnerability.

Affected products (as reported)

Vendor	Product	Versions
n/a	Advantech	Advantech R-SeeNet 2.4.12 (20.10.2020)

Weakness: CWE-98 · Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

References

https://talosintelligence.com/vulnerability_reports/TALOS-2021-1273 x_refsource_MISC