CVE-2020-1026

Description

A Security Feature Bypass vulnerability exists in the MSR JavaScript Cryptography Library that is caused by multiple bugs in the library’s Elliptic Curve Cryptography (ECC) implementation.An attacker could potentially abuse these bugs to learn information about a server’s private ECC key (a key leakage attack) or craft an invalid ECDSA signature that nevertheless passes as valid.The security update addresses the vulnerability by fixing the bugs disclosed in the ECC implementation, aka 'MSR JavaScript Cryptography Library Security Feature Bypass Vulnerability'.

Category

9.8
CVSS
Severity: Critical
CVSS 3.1 •
CVSS 2.0 •
EPSS 2.19% Top 20%
Vendor Advisory microsoft.com
Affected: Microsoft Microsoft Research JavaScript Cryptography Library V1.4
Published at:
Updated at:

References

Link Tags
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-1026 patch vendor advisory

Frequently Asked Questions

What is the severity of CVE-2020-1026?
CVE-2020-1026 has been scored as a critical severity vulnerability.
How to fix CVE-2020-1026?
To fix CVE-2020-1026, 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-2020-1026 being actively exploited in the wild?
It is possible that CVE-2020-1026 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~2% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2020-1026?
CVE-2020-1026 affects Microsoft Microsoft Research JavaScript Cryptography Library V1.4.
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