{"id":"CVE-2026-34155","title":"RAUC controls the update process on embedded Linux systems","summary":"RAUC controls the update process on embedded Linux systems. Prior to version 1.15.2, RAUC bundles using the 'plain' format exceeding a payload size of 2 GiB cause an integer overflow which results in a signature which covers only the fir…","severity":"medium","cvss":5.3,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N","cwe":["CWE-196","CWE-347"],"vendor":"pengutronix","product":"rauc","affected":["rauc < 1.15.2"],"patched":["rauc 1.15.2"],"published":"2026-03-31","updated":"2026-07-24","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-34155","references":[{"url":"https://github.com/rauc/rauc/commit/4fb7c798d6ae412344fb8f8d310d773046af3441","label":"security-advisories@github.com"},{"url":"https://github.com/rauc/rauc/releases/tag/v1.15.2","label":"security-advisories@github.com"},{"url":"https://github.com/rauc/rauc/security/advisories/GHSA-6hj7-q844-m2hx","label":"security-advisories@github.com"}],"tags":["nvd"],"epss":0.00141,"epssPercentile":0.03791,"ingestedAt":"2026-07-24T22:40:25.415Z","slug":"CVE-2026-34155","body":"## Overview\n\nRAUC controls the update process on embedded Linux systems. Prior to version 1.15.2, RAUC bundles using the 'plain' format exceeding a payload size of 2 GiB cause an integer overflow which results in a signature which covers only the first few bytes of the payload. Given such a bundle with a legitimate signature, an attacker can modify the part of the payload which is not covered by the signature. This issue has been patched in version 1.15.2.\n\n## Affected\n\n- `rauc < 1.15.2`\n\n## Remediation\n\nUpgrade past the affected range:\n\n- `rauc 1.15.2`","depth":"sunlit","depthScore":29,"depthScoreParts":{"impact":29.2,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}