peter bassill · operator
$ cve CVE-2021-41560 JSON

CVE-2021-41560

9.8
CRITICAL · CVSS 3.1 · EPSS 11.1% (pctl 96)

Patch early

EPSS 11.1% — above the 10% action threshold.

Description

OpenCATS through 0.9.6 allows remote attackers to execute arbitrary code by uploading an executable file via lib/FileUtility.php.

Scoring

CVSS9.8 (CRITICAL, v3.1)
VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS11.13% — more likely to be exploited than 96% of all CVEs
WeaknessCWE-434
On CISA KEVno
Public exploitnone known
Published2021-12-15
Last modified2026-06-17

Affected (1)

VendorProduct
opencatsopencats

References

→ the Explorer  ·  watch your stack  ·  NVD