CVE-2026-34155 (GCVE-0-2026-34155)

Vulnerability from cvelistv5 – Published: 2026-03-31 13:28 – Updated: 2026-03-31 15:45
VLAI
Title
RAUC: Improper Signing of Plain Bundles Exceeding 2 GiB
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 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.
Severity
7.2 (High)
CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:P/VC:L/VI:H/VA:N/SC:H/SI:H/SA:H
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-03-31 15:44 UTC
CWE
  • CWE-196 - Unsigned to Signed Conversion Error
  • CWE-347 - Improper Verification of Cryptographic Signature
Assigner
GitHub_M CNA under the mitre root
CNA scorecard C 72/100 over 7771 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
rauc rauc Affected: < 1.15.2
guessed Create a notification for this product.
Show details on NVD website
To clipboard 

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