In crasm 1.8-3, invalid input validation, specific files passed to the command line application, can lead to a divide by zero fault in the function opdiv.
Conclusion & alert: CVE-2023-23109 is rated Moderate Risk (47.7/100): CVSS High severity, with low exploitation likelihood (EPSS 0.74%). Mandatory action: Review affected assets and schedule remediation.
Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.
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 | 2026-06-15 | 0.41% | 0.74% | +0.33% |
| 2 | 2026-06-12 | 0.23% | 0.41% | +0.18% |
| 3 | 2026-02-28 | — | 0.23% | — |
Full EPSS history (8 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 7.5 | 3.1 | HIGH |
|
3.9 | 3.6 | [email protected] |
| vendor | priority | summary | link |
|---|---|---|---|
debian
|
unimportant | CVE-2023-23109 unimportant priority: Debian including 1 source packages (crasm), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): open 5. | https://security-tracker.debian.org/tracker/CVE-2023-23109 |
ubuntu
|
medium | CVE-2023-23109 medium priority: Ubuntu including 1 source packages (crasm), 13 status rows across 13 suites (bionic, focal, jammy, kinetic, lunar, mantic, noble, oracular, plucky, questing, trusty, upstream, xenial): ignored 6, needed 6, needs-triage 1. | https://ubuntu.com/security/CVE-2023-23109 |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| crasm_project | crasm | < 1.11 | cpe:2.3:a:crasm_project:crasm:*:*:*:*:*:*:*:* |
| URL | Tags |
|---|---|
| https://github.com/WhatTheFuzz/crasm-fuzz/tree/a020ad6ad99a72ca373f7dd1aab3a61a7c87fd66/bug-floating-point-exception | Third Party Advisory |
| https://github.com/colinbourassa/crasm/pull/7 | Patch Third Party Advisory |