{"id":"CVE-2026-110659","title":"ELFIO through 3.12 contains a NULL pointer dereference vulnerability in relocation_section_accessor get_entry() that allows attackers to crash applications via an unvalidated sh_link index","summary":"ELFIO through 3.12 contains a NULL pointer dereference vulnerability in relocation_section_accessor get_entry() that allows attackers to crash applications via an unvalidated sh_link index. Attackers can supply a crafted ELF file whose S…","severity":"medium","cvss":5.5,"cvssVector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","cwe":["CWE-476"],"published":"2026-10-14","updated":"2026-10-14","sourceUpdated":"2026-10-14T16:17:42.780","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-110659","references":[{"url":"https://github.com/serge1/ELFIO","label":"disclosure@vulncheck.com"},{"url":"https://github.com/serge1/ELFIO/blob/8ae6cec5d60495822ecd57d736f66149da9b1830/elfio/elfio_relocation.hpp#L142","label":"disclosure@vulncheck.com"},{"url":"https://hackmd.io/@haind-pwn/elfio-relocation-get-entry-null-deref","label":"disclosure@vulncheck.com"},{"url":"https://www.vulncheck.com/advisories/elfio-through-3.12-null-pointer-dereference-via-relocation-section-accessor-get-entry","label":"disclosure@vulncheck.com"}],"tags":["nvd","cve.org","exploit-available"],"ingestedAt":"2026-10-14T16:40:32.114Z","vendor":"serge1","product":"ELFIO","affected":["ELFIO <= 3.12"],"epss":0.00179,"epssPercentile":0.07373,"exploitAvailable":true,"ssvc":{"exploitation":"poc","automatable":"no","technicalImpact":"partial","timestamp":"2026-10-20T01:27:03.367591Z"},"slug":"CVE-2026-110659","body":"## Overview\n\nELFIO through 3.12 contains a NULL pointer dereference vulnerability in relocation_section_accessor get_entry() that allows attackers to crash applications via an unvalidated sh_link index. Attackers can supply a crafted ELF file whose SHT_REL or SHT_RELA section has a dangling sh_link, causing find_hash_section() to dereference null and deny service.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":42,"depthScoreParts":{"impact":30.3,"likelihood":0,"exploitation":12,"ransomware":0},"changes":[{"seq":225295,"id":"CVE-2026-110659","ts":1792461016907,"field":"exploit_available","old":"false","new":"true"}]}