---
cve: "CVE-2026-90801"
severity: "MEDIUM"
cvss: 4.8
epss: "0.2%"
vendor: "GNU"
kev: false
exploited: false
published: "2026-09-14 17:17:56"
tags: [cve, security, medium]
source: tsecurity.de CVE-Dossier
exported: "2026-09-20T21:17:13+02:00"
---

# CVE-2026-90801

> 4.8 MEDIUM · 🧪 PoC

## Beschreibung

A security flaw has been discovered in GNU Binutils 2.47. This impacts the function cache_bwrite of the file bfd/cache.c of the component ld. The manipulation of the argument nbytes results in buffer overflow. The attack requires a local approach. The exploit has been released to the public and may be used for attacks. The project was informed of the problem early through a bug report but has not responded yet.

## CVSS-Vektor

```
CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P
```

| Metrik | Wert | Bewertung |
|---|---|---|
| AV Angriffsvektor | Lokal | good |
| AC Komplexität | Gering | bad |
| PR Privilegien | Gering | warn |
| UI Interaktion | Keine | bad |

## Referenzen

- <https://vuldb.com/vuln/403303>
- <https://vuldb.com/vuln/403303/cti>
- <https://vuldb.com/cve/CVE-2026-90801>
- <https://vuldb.com/submit/920276>
- <https://sourceware.org/bugzilla/show_bug.cgi?id=34442>
- <https://github.com/r1ck9-2q/cve_summit/blob/main/Heap-buffer-overflow%20in%20%60cache_bwrite%60%20(bfdcache.c436)%20via%20malformed%20ELF%20with%20%60--gc-sections%20-w%60.md>
- <https://www.gnu.org/>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2026-90801) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_