CVE-2026-27854
| Summary |
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.
|
| Publication Date |
March 31, 2026, 9:16 p.m. |
| Registration Date |
April 15, 2026, 11:22 a.m. |
| Last Update |
April 15, 2026, 1:09 a.m. |
|
CVSS3.1 : HIGH
|
| スコア |
7.5
|
| Vector |
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
| 攻撃元区分(AV) |
ネットワーク |
| 攻撃条件の複雑さ(AC) |
低 |
| 攻撃に必要な特権レベル(PR) |
不要 |
| 利用者の関与(UI) |
不要 |
| 影響の想定範囲(S) |
変更なし |
| 機密性への影響(C) |
なし |
| 完全性への影響(I) |
なし |
| 可用性への影響(A) |
高 |
Affected software configurations
| Configuration1 |
or higher |
or less |
more than |
less than |
| cpe:2.3:a:powerdns:dnsdist:*:*:*:*:*:*:*:* |
1.9.0 |
|
|
1.9.12 |
| cpe:2.3:a:powerdns:dnsdist:*:*:*:*:*:*:*:* |
2.0.0 |
|
|
2.0.3 |
Related information, measures and tools
Common Vulnerabilities List