What is CVE-2021-21426?

CVE-2021-21426 is a critical-severity vulnerability in Openmage Magento-lts, classified under Deserialization of Untrusted Data. CVSS score: 9.8/10. Published 2021-04-21.

How severe is CVE-2021-21426?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Deserialization in Openmage Magento-lts

CVE-2021-21426

Magento-lts is a long-term support alternative to Magento Community Edition (CE). In magento-lts versions 19.4.12 and prior and 20.0.8 and prior, there is a vulnerability caused by the unsecured deserialization of an object. A patch in ver…

Vulnerability class: Insecure Deserialization

EPSS: 0.004 (61.4th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Openmage Magento-lts — versions <= 19.4.12, <= 20.0.8

Weakness classification (CWE)

CWE-502 — Deserialization of Untrusted Data

References

github.com/OpenMage/magento-lts/security/advisories/GHSA-m496-x567-f98c (x_refsource_CONFIRM)

Frequently asked questions

What is CVE-2021-21426?: CVE-2021-21426 is a critical-severity vulnerability in Openmage Magento-lts, classified under Deserialization of Untrusted Data. CVSS score: 9.8/10. Published 2021-04-21.
How severe is CVE-2021-21426?: Critical severity. CVSS v3 base score is 9.8 out of 10.