Buffer overflow in Ticalc Tiemu
CVE-2017-20225
TiEmu 2.08 and prior contains a stack-based buffer overflow vulnerability that allows attackers to execute arbitrary code by exploiting inadequate boundary checks on user-supplied input. Attackers can trigger the overflow through command-line arguments passed to the application, leveraging ROP gadgets to bypass protections and execute shellcode in the application context.
Vulnerability class: Buffer Overflow
Published · last modified .
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: 0.008 (54.9th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 55th percentile — 54.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.008 · newest: 0.008 · change: 0.000
Affected products
- Ticalc Tiemu — versions 2.08
Weakness classification (CWE)
References
- www.exploit-db.com/exploits/42087 (Exploit, VDB Entry, exploit)
- lpg.ticalc.org/prj_tiemu/ (Product, product)
- www.vulncheck.com/advisories/tiemu-stack-based-buffer-overflow-vulnerability (Third Party Advisory, third-party-advisory)
Frequently asked questions
- What is CVE-2017-20225?
- CVE-2017-20225 is a critical-severity vulnerability in Ticalc Tiemu, classified under Out-of-bounds Write. CVSS score: 9.8/10. Published 2026-03-28.
- How severe is CVE-2017-20225?
- Critical severity. CVSS v3 base score is 9.8 out of 10.