CVE-2026-34155
mediumpriority · track · 21EPSS 0.001 · 3 %ileEUUSEPSS · scored 2026-10-27
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 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.
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 4.3–7.2
ssvc
A stakeholder decision — act, attend, or track — from exploitation and impact.
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (2)
Products and version ranges known to be affected.
also known as (2)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (11)
External citations — patches, advisories, analysis.
- https://github.com/rauc/rauc/commit/4fb7c798d6ae412344fb8f8d310d773046af3441cnnvd
- https://github.com/rauc/rauc/releases/tag/v1.15.2cnnvd
- https://github.com/rauc/rauc/security/advisories/GHSA-6hj7-q844-m2hxcnnvd
- https://rauc.io/pages/download.htmlPatchcnnvd
- https://vigilance.fr/vulnerability/RAUC-weak-signature-via-Large-Plain-Format-50384cnnvd
- https://github.com/rauc/rauc/commit/4fb7c798d6ae412344fb8f8d310d773046af3441enisa_euvd
- https://github.com/rauc/rauc/releases/tag/v1.15.2enisa_euvd
- https://github.com/rauc/rauc/security/advisories/GHSA-6hj7-q844-m2hxenisa_euvd
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