{"resultsPerPage":1,"startIndex":0,"totalResults":1,"format":"NVD_CVE","version":"2.0","timestamp":"2026-04-17T18:31:50.733","vulnerabilities":[{"cve":{"id":"CVE-2026-27853","sourceIdentifier":"security@open-xchange.com","published":"2026-03-31T12:16:27.917","lastModified":"2026-04-14T16:12:32.463","vulnStatus":"Analyzed","cveTags":[],"descriptions":[{"lang":"en","value":"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."}],"metrics":{"cvssMetricV31":[{"source":"security@open-xchange.com","type":"Secondary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H","baseScore":5.9,"baseSeverity":"MEDIUM","attackVector":"NETWORK","attackComplexity":"HIGH","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"HIGH"},"exploitabilityScore":2.2,"impactScore":3.6},{"source":"nvd@nist.gov","type":"Primary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","baseScore":7.5,"baseSeverity":"HIGH","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"HIGH"},"exploitabilityScore":3.9,"impactScore":3.6}]},"weaknesses":[{"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","type":"Secondary","description":[{"lang":"en","value":"CWE-787"}]}],"configurations":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:powerdns:dnsdist:*:*:*:*:*:*:*:*","versionStartIncluding":"1.9.0","versionEndExcluding":"1.9.12","matchCriteriaId":"628B3B94-81DE-496E-B36A-B79A3DFFE1F4"},{"vulnerable":true,"criteria":"cpe:2.3:a:powerdns:dnsdist:*:*:*:*:*:*:*:*","versionStartIncluding":"2.0.0","versionEndExcluding":"2.0.3","matchCriteriaId":"9AC850DD-FDD8-4C48-B861-4BBAF423FF57"}]}]}],"references":[{"url":"https://www.dnsdist.org/security-advisories/powerdns-advisory-for-dnsdist-2026-02.html","source":"security@open-xchange.com","tags":["Vendor Advisory"]}]}}]}