CVE-2026-27854
4.8
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:L
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.
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
- Use After Free
ADP Enrichment
CISA ADP Vulnrichment
- SSVC:
- Exploitation: none
- Automatable: no
- Technical Impact: partial
References
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