CVE-2026-27854

Katalog CVE

CVSS 7.5 · High EPSS 1,3%

Kerentanan Use After Free pada powerdns dnsdist. Skor CVSS 3.1 7.5 (High) menurut NVD.

Deskripsi (NVD)

An attacker might be able to trigger a use-after-free by sending crafted DNS queries to a DNSdist using the DNSQuestion:getEDNSOptions method in custom Lua code. In some cases DNSQuestion:getEDNSOptions might refer to a version of the DNS packet that has been modified, thus triggering a use-after-free and potentially a crash resulting in denial of service.

Rincian

Terbit di NVD

31 Maret 2026

Terakhir diubah

25 Juli 2026

Status NVD

Analyzed

CVSS 3.1

7.5 (High), sumber NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H · uraikan di kalkulator

Jenis kelemahan (CWE)

CWE-416: Use After Free

EPSS (30 hari)

1,3% peluang dieksploitasi; lebih tinggi dari 70,5% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://www.dnsdist.org/security-advisories/powerdns-advisory-for-dnsdist-2026-02.html advisory vendor