CVE-2026-50185
3.3 · LOWOverview
CVE-2026-50185 is a low-severity vulnerability affecting rustcrypto cmov. 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 and patches from rustcrypto. Update cmov to the latest patched version. 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.
Affected Products
| Vendor | Product | Versions | Status |
|---|---|---|---|
| rustcrypto | cmov | >= 0.1.1, < 0.5.4 | Affected |
References
Frequently Asked Questions
What is CVE-2026-50185?
CVE-2026-50185 is a low-severity vulnerability affecting rustcrypto cmov. 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 and patches from rustcrypto. Update cmov to the latest patched version. 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's AI-powered security agents can automatically detect CVE-2026-50185 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.
How CyberStrike Helps
AI agents map your attack surface to find vulnerabilities like this one.
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