CVE-2026-107708

Katalog CVE

CVSS 4.9 · Medium EPSS 0,52%

Kerentanan NULL Pointer Dereference. Skor CVSS 3.1 4.9 (Medium) menurut vulncheck.com.

Deskripsi (NVD)

MIT krb5 through 1.22.2 contains a NULL pointer dereference vulnerability in the KDC's get_pac_princ_with_realm() that returns success while leaving the client principal NULL on malformed names. A malicious or compromised cross-realm trusted KDC can send an S4U2Proxy request with a PAC carrying a malformed client name to crash krb5kdc and deny authentication.

Rincian

Terbit di NVD

8 Oktober 2026

Terakhir diubah

14 Oktober 2026

Status NVD

Awaiting Analysis

CVSS 3.1

4.9 (Medium), sumber vulncheck.com
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H · uraikan di kalkulator

Jenis kelemahan (CWE)

CWE-476: NULL Pointer Dereference

EPSS (30 hari)

0,52% peluang dieksploitasi; lebih tinggi dari 42,6% CVE lain

Produk dan versi terdampak

NVD belum mencantumkan data produk (CPE) untuk CVE ini. Produk yang terdampak biasanya disebut di deskripsi dan di advisory vendor pada daftar referensi.

Referensi dan perbaikan

• https://github.com/krb5/krb5
• https://github.com/krb5/krb5/blob/krb5-1.22.2-final/src/kdc/kdc_util.c#L639-L676
• https://github.com/krb5/krb5/commit/a88a18cafa1040a0c4f9c8d08288fc98831ec86d
• https://github.com/krb5/krb5/commit/f6e2c397ceda6467ebbaab8ed66d4895c9f1d6a7
• https://github.com/krb5/krb5/pull/1510
• https://www.vulncheck.com/advisories/mit-krb5-through-1.22.2-kdc-null-pointer-dereference-via-s4u2proxy-pac