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.
Conclusion & alert: CVE-2017-20225 is rated Exploit Available (54.6/100): CVSS Critical severity, with low exploitation likelihood (EPSS 0.03%). Core evidence: 1 public exploit reference(s) are indexed (Exploit-DB). Mandatory action: Public exploits are available—assess exposure, apply mitigations, and prioritize patching.
Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.
| EDB-ID | Source | Kind | Published | Link |
|---|---|---|---|---|
| — | nvd_ref | exploit_tag | Exploit-DB ↗ |
EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).
| # | Date | Old EPSS score | New EPSS score | Delta (New - Old) |
|---|---|---|---|---|
| 1 | 2026-04-21 | 0.07% | 0.03% | -0.04% |
| 2 | 2026-03-28 | — | 0.07% | — |
Full EPSS history (2 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 9.3 | 4.0 | CRITICAL |
|
— | — | [email protected] |
| 9.8 | 3.1 | CRITICAL |
|
3.9 | 5.9 | [email protected] |
| vendor | priority | summary | link |
|---|---|---|---|
debian
|
not yet assigned | CVE-2017-20225 not yet assigned priority: Debian including 1 source packages (tiemu), 2 status rows across 2 suites (bookworm, bullseye): open 2. | https://security-tracker.debian.org/tracker/CVE-2017-20225 |
ubuntu
|
medium | CVE-2017-20225 medium priority: Ubuntu including 1 source packages (tiemu), 7 status rows across 7 suites (bionic, focal, jammy, noble, questing, upstream, xenial): needs-triage 6, DNE 1. | https://ubuntu.com/security/CVE-2017-20225 |
| URL | Tags |
|---|---|
| http://lpg.ticalc.org/prj_tiemu/ | Product |
| https://www.exploit-db.com/exploits/42087 | Exploit VDB Entry |
| https://www.vulncheck.com/advisories/tiemu-stack-based-buffer-overflow-vulnerability | Third Party Advisory |