What is CVE-2025-29365?

CVE-2025-29365 is a critical-severity vulnerability in Spimsimulator Spim, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 9.8/10. Published 2025-08-22.

How severe is CVE-2025-29365?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Buffer overflow in Spimsimulator Spim

CVE-2025-29365

spimsimulator spim v9.1.24 and before is vulnerable to Buffer Overflow in READ_STRING_SYSCALL.

Vulnerability class: Buffer Overflow

Published 2025-08-22 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.005 (41.3th percentile), scored 2026-10-19.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 41st percentile — 41.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.005 · newest: 0.005 · change: 0.000

Affected products

Spimsimulator Spim

Weakness classification (CWE)

References

github.com/Giles-one/spimsimulatorEscape (Exploit, Vendor Advisory)
gist.github.com/Giles-one/3a80cd1c7014e50601bd1c0dd9d41663 (Third Party Advisory)

Frequently asked questions

What is CVE-2025-29365?: CVE-2025-29365 is a critical-severity vulnerability in Spimsimulator Spim, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 9.8/10. Published 2025-08-22.
How severe is CVE-2025-29365?: Critical severity. CVSS v3 base score is 9.8 out of 10.