{"id":"CVE-2026-7836","state":"PUBLISHED","title":"hextoint macro uppercase bug","description":"An incorrect calculation in the hextoint macro in Netatalk 2.0.0 through 4.4.2 due to improper uppercase character handling allows a remote authenticated attacker to cause limited data modification via crafted hexadecimal input.","publishedAt":"2026-05-21T07:35:13.096Z","updatedAt":"2026-05-21T12:12:38.186Z","severity":{"score":3.1,"label":"Low","version":"3.1","vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:N","source":"securin"},"assigner":"securin","products":["Netatalk Netatalk"],"affected":[{"vendor":"Netatalk","product":"Netatalk","defaultStatus":"unaffected","versions":[{"version":"2.0.0","status":"affected","lessThanOrEqual":"4.4.2","versionType":"semver"},{"version":"4.5.0","status":"unaffected","versionType":"semver"}]}],"references":["https://netatalk.io/security/CVE-2026-7836"],"weaknesses":["CWE-682"],"ingestedAt":"2026-10-29T20:13:07.220Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/7xxx/CVE-2026-7836.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-7836","state":"PUBLISHED","datePublished":"2026-05-21T07:35:13.096Z","dateUpdated":"2026-05-21T12:12:38.186Z","assignerShortName":"securin","assignerOrgId":"33c584b5-0579-4c06-b2a0-8d8329fcab9c","dateReserved":"2026-05-05T07:25:35.245Z"},"containers":{"cna":{"title":"hextoint macro uppercase bug","descriptions":[{"lang":"en","value":"An incorrect calculation in the hextoint macro in Netatalk 2.0.0 through 4.4.2 due to improper uppercase character handling allows a remote authenticated attacker to cause limited data modification via crafted hexadecimal input."}],"affected":[{"vendor":"Netatalk","product":"Netatalk","defaultStatus":"unaffected","versions":[{"version":"2.0.0","status":"affected","lessThanOrEqual":"4.4.2","versionType":"semver"},{"version":"4.5.0","status":"unaffected","versionType":"semver"}]}],"references":[{"url":"https://netatalk.io/security/CVE-2026-7836","name":"Netatalk Security Advisory CVE-2026-7836","tags":["vendor-advisory"]}],"metrics":[{"cvssV3_1":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:N","baseScore":3.1,"baseSeverity":"LOW"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-682","lang":"en","type":"CWE","description":"Incorrect Calculation"}]}],"providerMetadata":{"shortName":"securin","orgId":"33c584b5-0579-4c06-b2a0-8d8329fcab9c","dateUpdated":"2026-05-21T07:53:03.045Z"},"credits":[{"lang":"en","type":"finder","value":"Arjun Basnet from Securin"}],"datePublic":"2026-05-13T00:00:00.000Z"},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-05-21T12:12:27.745784Z","id":"CVE-2026-7836","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-05-21T12:12:38.186Z"}}]}}}