CVE-2022-34643

Name: CVE-2022-34643
Creator: NVD / NIST
Published: 2022-07-18T23:15:13.2+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.5/10EPSS 0.21%

Last modified Jun 17, 2026

CVE-2022-34643 is a medium-severity vulnerability rated 5.5/10 on the CVSS scale. RISCV ISA Sim commit ac466a21df442c59962589ba296c702631e041b5 implements the incorrect exception priotrity when accessing memory.. EPSS estimates a 0.21% chance of exploitation in the next 30 days.

Description

RISCV ISA Sim commit ac466a21df442c59962589ba296c702631e041b5 implements the incorrect exception priotrity when accessing memory.

Metrics

CVSS 3.1

5.5/10

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

EPSS Probability

0.21%

11.9th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-755

Affected Software

Vendor	Product	Versions
Riscv	Spike Risc-V Isa Simulator	All versions

References

https://github.com/riscv-software-src/riscv-isa-sim/issues/971Exploit, Issue Tracking, Patch, Third Party Advisory
https://github.com/riscv-software-src/riscv-isa-sim/issues/971Exploit, Issue Tracking, Patch, Third Party Advisory

Timeline

Published: Jul 18, 2022
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2022-34643?

RISCV ISA Sim commit ac466a21df442c59962589ba296c702631e041b5 implements the incorrect exception priotrity when accessing memory.

How severe is CVE-2022-34643?

CVE-2022-34643 has a CVSS score of 5.5/10 (MEDIUM severity). The EPSS model estimates a 0.21% probability of exploitation in the next 30 days.

How do I fix CVE-2022-34643?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2022-34643?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST