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CVE-2026-50185

3.3 · LOW

RustCrypto CMOV provides conditional move CPU intrinsics which are guaranteed on major platforms to execute in constant-time and not be rewritten as branches by the compiler.

Published Jul 17, 2026CWE-758EPSS 0.16%

Overview

CVE-2026-50185 is a low-severity vulnerability. It was published on July 17, 2026 and has a CVSS 3.1 base score of 3.3 (LOW).

This vulnerability has a CVSS 3.1 base score of 3.3, rated LOW. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

Technical description

RustCrypto CMOV provides conditional move CPU intrinsics which are guaranteed on major platforms to execute in constant-time and not be rewritten as branches by the compiler. From 0.1.1 until 0.5.4, the aarch64 implementations of Cmov and CmovEq in cmov/src/backends/aarch64.rs assume high bits are zero-extended when loading values smaller than a register, so set high bits such as [8..] in a Cmov selector or [16..] of self or other in the u16 and i16 CmovEq implementations can cause left.cmovz(&right, condition) to produce incorrect output. This issue is fixed in version 0.5.4.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

GitHubgithub.com/RustCrypto/utils/commit/dba6c355c9f241e3726d5ec2a68f9f3b519f6063GitHubgithub.com/RustCrypto/utils/releases/tag/cmov-v0.5.4GitHubgithub.com/RustCrypto/utils/security/advisories/GHSA-3rjw-m598-pq24GitHubgithub.com/RustCrypto/utils/security/advisories/GHSA-3rjw-m598-pq24

How CyberStrike helps

Frequently asked questions

What is CVE-2026-50185?

CVE-2026-50185 is a low-severity vulnerability. It was published on July 17, 2026 and has a CVSS 3.1 base score of 3.3 (LOW).

How severe is CVE-2026-50185?

This vulnerability has a CVSS 3.1 base score of 3.3, rated LOW. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2026-50185?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2026-50185?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-50185 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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