CVE-2026-27853
5.9
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
Summary
An attacker might be able to trigger an out-of-bounds write by sending crafted DNS responses to a DNSdist using the DNSQuestion:changeName or DNSResponse:changeName methods in custom Lua code. In some cases the rewritten packet might become larger than the initial response and even exceed 65535 bytes, potentially leading to a crash resulting in denial of service.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| PowerDNS | DNSdist | 1.9.0 < 1.9.12 | affected |
| PowerDNS | DNSdist | 2.0.0 < 2.0.3 | affected |
Weaknesses
- Out-of-bounds Write
ADP Enrichment
CISA ADP Vulnrichment
- SSVC:
- Exploitation: none
- Automatable: no
- Technical Impact: partial
References
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