How severe is CVE-2022-34643?

CVE-2022-34643 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2022-34643 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (12th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2022-34643?

CVE-2022-34643 affects Riscv Spike Risc-v Isa Simulator. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2022-34643?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2022-34643 published?

CVE-2022-34643 was published on 2022-07-18 and last updated on 2026-06-17.

CVE-2022-34643

CVE-2022-34643 is a medium-severity vulnerability in Riscv Spike Risc-v Isa Simulator with a CVSS 3.x base score of 5.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-755.

Key facts

Severity: Medium (CVSS 3.x base score 5.5)
EPSS exploit prediction: 0% (12th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-755
Affected product: Riscv Spike Risc-v Isa Simulator
Published: 2022-07-18
Last modified: 2026-06-17

Description

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

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 3.x base score of 5.5, rated medium severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2022-34643 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (12th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2022-34643?: CVE-2022-34643 affects Riscv Spike Risc-v Isa Simulator. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2022-34643?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2022-34643 published?: CVE-2022-34643 was published on 2022-07-18 and last updated on 2026-06-17.

References

https://github.com/riscv-software-src/riscv-isa-sim/issues/971

Affected products (1)

cpe:2.3:a:riscv:spike_risc-v_isa_simulator:-:*:*:*:*:*:*:*

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