CVE-2025-50897: boomv Access Control Flaw — Exploit

Description

A vulnerability exists in riscv-boom SonicBOOM 1.2 (BOOMv1.2) processor implementation, where valid virtual-to-physical address translations configured with write permissions (PTE_W) in SV39 mode may incorrectly trigger a Store/AMO access fault during store instructions (sd). This occurs despite the presence of proper page table entries and valid memory access modes. The fault is reproducible when transitioning into virtual memory and attempting store operations in mapped kernel memory, indicating a potential flaw in the MMU, PMP, or memory access enforcement logic. This may cause unexpected kernel panics or denial of service in systems using BOOMv1.2.

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CVSS v3.1 Score

4.3

MEDIUM

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

Weakness Type (CWE)

CWE-284 CWE-284

CWE-434 Unrestricted Upload

CWE-693 CWE-693

Affected Products

Vendor	Product	Versions
boom-core	boomv	All

References

Exploits

https://github.com/LuLuji04/POC-Boomv1.2

Other References

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

Frequently Asked Questions

What is CVE-2025-50897? +

A vulnerability exists in riscv-boom SonicBOOM 1.2 (BOOMv1.2) processor implementation, where valid virtual-to-physical address translations configured with write permissions (PTE_W) in SV39 mode may incorrectly trigger a Store/AMO access fault during store instructions (sd). This occurs despite the presence of proper page table entries and valid memory access modes. The fault is reproducible when transitioning into virtual memory and attempting store operations in mapped kernel memory, indicating a potential flaw in the MMU, PMP, or memory access enforcement logic. This may cause unexpected kernel panics or denial of service in systems using BOOMv1.2. It has a CVSS v3.1 base score of 4.3 (MEDIUM).

How severe is CVE-2025-50897? +

CVE-2025-50897 has a CVSS v3.1 score of 4.3 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance.

What products are affected by CVE-2025-50897? +

CVE-2025-50897 affects products from boom-core, specifically: boomv. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2025-50897? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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