VDB
CVE-2026-27854
CVE-2026-27854
PUBLISHED
CVSS 4.800000190734863 MEDIUM
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.
EPSS 0.01% · 0.4th percentile
Risk Scores
CVSS v3.1
4.800000190734863
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:L
EPSS Score
0.01%
0.4th percentile
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| PowerDNS | DNSdist | 1.9.0, 2.0.0 |
Timeline
- Mar 31, 2026 CVE Published
- Mar 31, 2026 Security Advisory
- Apr 2, 2026 CVE Updated
- May 18, 2026 EPSS Score
- May 19, 2026 EPSS Score
- May 20, 2026 EPSS Score
- May 21, 2026 EPSS Score
- May 22, 2026 EPSS Score
- May 23, 2026 EPSS Score
- May 24, 2026 EPSS Score
- May 25, 2026 EPSS Score
- May 26, 2026 EPSS Score