CVE-2026-34155

HIGH EPSS 3.8%
Published Mar 31, 20263mo ago · Modified Jun 17, 20262w ago
7.2 CVSS 4.0
High
Find Similar
Published Mar 31, 2026 3mo ago
Last Modified Jun 17, 2026 2w ago

Description

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 Details

Base Score
7.2
Exploitability
—
Impact
—
Vector string
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/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
Attack Vector Network
Attack Complexity Low
Privileges Required Low
User Interaction P
Scope X

Threat Intelligence

EPSS Exploit Probability
3.8% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 2

CWE-196
CWE-347

Affected Products 1

VendorProductVersionRange
pengutronixrauc* <1.15.2

References 3

  • github.com https://github.com/rauc/rauc/commit/4fb7c798d6ae412344fb8f8d310d773046af3441
    Patch
  • github.com https://github.com/rauc/rauc/releases/tag/v1.15.2
    Release Notes
  • github.com https://github.com/rauc/rauc/security/advisories/GHSA-6hj7-q844-m2hx
    MitigationPatchVendor Advisory

Remediation

  • github.com https://github.com/rauc/rauc/commit/4fb7c798d6ae412344fb8f8d310d773046af3441
    Patch
  • github.com https://github.com/rauc/rauc/security/advisories/GHSA-6hj7-q844-m2hx
    MitigationPatchVendor Advisory