{"affected":[{"defaultStatus":"unaffected","ecosystem":"github","packageName":"book-readers/ebook-speaker","product":"eBook-speaker","source":"CNA: VulnCheck","vendor":"book-readers","versions":[{"lessThanOrEqual":"6.2.0","status":"affected","version":"6.1.0","versionType":"custom"}]}],"cveId":"CVE-2026-123199","cwes":["CWE-120"],"description":"eBook-speaker 6.1.0 through 6.2.0 contains a stack buffer overflow vulnerability in get_attributes() in src/common.c caused by an unbounded strcpy of an element's name attribute. Attackers can craft an EPUB or DAISY book with a name attribute of 511 or more characters to corrupt the stack and crash the reader when opened.","epss":{"date":"2026-11-09","percentile":0.03564,"score":0.00142},"exploits":[],"kev":null,"metrics":[{"score":6.8,"severity":"medium","source":"CNA: VulnCheck","vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","version":"4.0"},{"score":5.5,"severity":"medium","source":"CNA: VulnCheck","vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","version":"3.1"},{"score":6.8,"severity":"medium","source":"NVD: disclosure@vulncheck.com","vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","version":"4.0"},{"score":5.5,"severity":"medium","source":"NVD: disclosure@vulncheck.com","vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","version":"3.1"}],"modifiedAt":1794266234400,"publishedAt":1793902596404,"references":[{"source":"CNA: VulnCheck","tags":["patch"],"url":"https://github.com/book-readers/ebook-speaker/commit/23b5c86585d7e3c27c932b112f4e36858e70f210"},{"source":"CNA: VulnCheck","tags":["technical-description"],"url":"https://github.com/book-readers/ebook-speaker/blob/4a8f457a0fd65a96463c0fa9bd0612242c081dc8/src/common.c#L631-L632"},{"source":"CNA: VulnCheck","tags":["third-party-advisory"],"url":"https://www.vulncheck.com/advisories/ebook-speaker-through-6.2.0-stack-based-buffer-overflow-via-element-name-attribute"},{"source":"disclosure@vulncheck.com","tags":[],"url":"https://github.com/book-readers/ebook-speaker/blob/4a8f457a0fd65a96463c0fa9bd0612242c081dc8/src/common.c#L631-L632"},{"source":"disclosure@vulncheck.com","tags":[],"url":"https://github.com/book-readers/ebook-speaker/commit/23b5c86585d7e3c27c932b112f4e36858e70f210"},{"source":"disclosure@vulncheck.com","tags":[],"url":"https://www.vulncheck.com/advisories/ebook-speaker-through-6.2.0-stack-based-buffer-overflow-via-element-name-attribute"}],"remediation":[{"kind":"fix","source":"CNA: VulnCheck","text":"The reporting source identifies this reference as a patch. Check the advisory for affected versions and supported release branches.","url":"https://github.com/book-readers/ebook-speaker/commit/23b5c86585d7e3c27c932b112f4e36858e70f210"}],"revision":"6482c9bf6a316602e6f773932e02584fb919f2e8589be771df9500aca39d033d","sources":[{"modifiedAt":1794263369751,"name":"CNA: VulnCheck","retrievedAt":1794265738447,"url":"https://www.cve.org/CVERecord?id=CVE-2026-123199"},{"modifiedAt":1794266234400,"name":"NVD","retrievedAt":1794269890212,"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-123199"},{"modifiedAt":null,"name":"FIRST EPSS","retrievedAt":1794265767126,"url":"https://api.first.org/data/v1/epss?cve=CVE-2026-123199"}],"ssvc":{"assessedAt":1794263360325,"automatable":"no","exploitation":"none","source":"ADP: CISA-ADP","technicalImpact":"partial"},"status":"published","title":"eBook-speaker through 6.2.0 Stack-based Buffer Overflow via element name attribute","updatedAt":1794269890212}