---
cve: "CVE-2024-43688"
severity: "HIGH"
cvss: 7.3
epss: "52%"
vendor: "n/a"
kev: false
exploited: false
published: "2024-08-20 06:15:04"
tags: [cve, security, high]
source: tsecurity.de CVE-Dossier
exported: "2026-09-17T16:04:30+02:00"
---

# CVE-2024-43688

> 7.3 HIGH · 🧪 PoC

## Beschreibung

cron/entry.c in vixie cron before 9cc8ab1, as used in OpenBSD 7.4 and 7.5, allows a heap-based buffer underflow and memory corruption. NOTE: this issue was introduced during a May 2023 refactoring.

## CVSS-Vektor

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

| Metrik | Wert | Bewertung |
|---|---|---|
| AV Angriffsvektor | Netzwerk | bad |
| AC Komplexität | Gering | bad |
| PR Privilegien | Keine | bad |
| UI Interaktion | Keine | bad |
| S Scope | Unverändert | good |
| C Vertraulichkeit | Gering | warn |
| I Integrität | Gering | warn |
| A Verfügbarkeit | Gering | warn |

## Patch verfügbar (OSV)

- 9cc8ab1087bb9ab861dd5595c41200683c9f6712 (Commit)

## Referenzen

- <https://www.supernetworks.org/advisories/CVE-2024-43688-openbsd-cron-heap-underflow.txt>
- <https://github.com/vixie/cron/commit/9cc8ab1087bb9ab861dd5595c41200683c9f6712>
- <https://www.supernetworks.org/CVE-2024-43688/openbsd-cron-heap-underflow.txt>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2024-43688) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_