CVE-2021-21426

Fixes a bug in Zend Framework's Stream HTTP Wrapper

Description

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 versions 19.4.13 and 20.0.9 was back ported from Zend Framework 3. The vulnerability was assigned CVE-2021-3007 in Zend Framework.

Category

9.8
CVSS
Severity: Critical
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.40%
Third-Party Advisory github.com
Affected: OpenMage magento-lts
Published at:
Updated at:

References

Link Tags
https://github.com/OpenMage/magento-lts/security/advisories/GHSA-m496-x567-f98c third party advisory

Frequently Asked Questions

What is the severity of CVE-2021-21426?
CVE-2021-21426 has been scored as a critical severity vulnerability.
How to fix CVE-2021-21426?
To fix CVE-2021-21426, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2021-21426 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2021-21426 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2021-21426?
CVE-2021-21426 affects OpenMage magento-lts.
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