CVE-2026-12244
8.8
HIGH
CVSS 3.1
EPSS 0.30%
描述
If NSD is configured as secondary for a zone, the primary of that zone can crash NSD with an AXFR containing a DNS message with a special crafted SVCB RR with an rdata size of 65512, that let's an (uint16_t) variable that is used to allocate space needed for the RR wrap (because total size > 65535), causing a heap overflow. The attacker can perform a controlled (RCE class) head write of up to 65509 bytes
如何修補 CVE-2026-12244
要修補 CVE-2026-12244,請將受影響套件升級到下列已修補版本。
- —升級至 4.14.3-r0 或更新版本
CVE-2026-12244 正在被利用嗎?
低 — EPSS 為 0.3%,目前沒有觀察到大規模利用活動。
受影響套件(1)
- >= 4.14.0, < 4.14.3-r0
CVSS 分數
| 來源 | 版本 | 嚴重程度 | 向量 |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH8.8 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |