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CVE-2020-25860

MEDIUM
6.6
CVSS Score
Published: December 21, 2020 at 05:23 PM UTC
Updated: June 17, 2026 at 03:07 AM UTC
1 product affected across 1 vendorRauc

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Severity
MEDIUM6.6
Exploit prediction
EPSS 1%

Description

The install.c module in the Pengutronix RAUC update client prior to version 1.5 has a Time-of-Check Time-of-Use vulnerability, where signature verification on an update file takes place before the file is reopened for installation. An attacker who can modify the update file just before it is reopened can install arbitrary code on the device.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Rauc· Pengutronix
95%
v < 1.5
Affected range stops below 1.5, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (2)

x_refsource_MISCExploitThird Party Advisory
Source: [email protected]
https://github.com/rauc/rauc/security/advisories/GHSA-cgf3-h62j-w9vv
x_refsource_MISCExploitThird Party Advisory
Source: [email protected]
https://www.vdoo.com/blog/cve-2020-25860-significant-vulnerability-discovered-rauc-embedded-firmware-update-framework

CVSS

6.6MEDIUM[email protected]
Attack Vector
NETWORK
Complexity
HIGH
Privileges
HIGH
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-367

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