Cisco IOS XR Software Image Verification Bypass Vulnerability
Published Mar 12, 2025
6.7
MEDIUMCVSS 3.1
EPSS 0.17%
Description
A vulnerability in the boot process of Cisco IOS XR Software could allow an authenticated, local attacker to bypass Cisco IOS XR image signature verification and load unverified software on an affected device. To exploit this vulnerability, the attacker must have root-system privileges on the affected device. This vulnerability is due to incomplete validation of files in the boot verification process. An attacker could exploit this vulnerability by manipulating the system configuration options to bypass some of the integrity checks that are performed during the boot process. A successful exploit could allow the attacker to control the boot configuration, which could enable them to bypass the requirement to run Cisco-signed images or alter the security properties of the running system. Note: Because exploitation of this vulnerability could result in the attacker bypassing Cisco image verification, Cisco has raised the Security Impact Rating (SIR) of this advisory from Medium to High.
Affected products
-
- Version 24.1.1StatusaffectedConstraints-
- Version 24.1.2StatusaffectedConstraints-
- Version 24.2.1StatusaffectedConstraints-
- Version 24.2.11StatusaffectedConstraints-
- Version 24.3.1StatusaffectedConstraints-
- Version 6.7.1StatusaffectedConstraints-
- Version 6.7.2StatusaffectedConstraints-
- Version 6.7.3StatusaffectedConstraints-
- Version 6.7.35StatusaffectedConstraints-
- Version 6.7.4StatusaffectedConstraints-
- Version 6.8.1StatusaffectedConstraints-
- Version 6.8.2StatusaffectedConstraints-
- Version 6.9.1StatusaffectedConstraints-
- Version 6.9.2StatusaffectedConstraints-
- Version 7.0.0StatusaffectedConstraints-
- Version 7.0.1StatusaffectedConstraints-
- Version 7.0.11StatusaffectedConstraints-
- Version 7.0.12StatusaffectedConstraints-
- Version 7.0.14StatusaffectedConstraints-
- Version 7.0.2StatusaffectedConstraints-
- Version 7.0.90StatusaffectedConstraints-
- Version 7.1.1StatusaffectedConstraints-
- Version 7.1.15StatusaffectedConstraints-
- Version 7.1.2StatusaffectedConstraints-
- Version 7.1.25StatusaffectedConstraints-
- Version 7.1.3StatusaffectedConstraints-
- Version 7.10.1StatusaffectedConstraints-
- Version 7.10.2StatusaffectedConstraints-
- Version 7.11.1StatusaffectedConstraints-
- Version 7.11.2StatusaffectedConstraints-
- Version 7.2.0StatusaffectedConstraints-
- Version 7.2.1StatusaffectedConstraints-
- Version 7.2.12StatusaffectedConstraints-
- Version 7.2.2StatusaffectedConstraints-
- Version 7.3.1StatusaffectedConstraints-
- Version 7.3.15StatusaffectedConstraints-
- Version 7.3.16StatusaffectedConstraints-
- Version 7.3.2StatusaffectedConstraints-
- Version 7.3.27StatusaffectedConstraints-
- Version 7.3.3StatusaffectedConstraints-
- Version 7.3.4StatusaffectedConstraints-
- Version 7.3.5StatusaffectedConstraints-
- Version 7.3.6StatusaffectedConstraints-
- Version 7.4.1StatusaffectedConstraints-
- Version 7.4.15StatusaffectedConstraints-
- Version 7.4.16StatusaffectedConstraints-
- Version 7.4.2StatusaffectedConstraints-
- Version 7.5.1StatusaffectedConstraints-
- Version 7.5.12StatusaffectedConstraints-
- Version 7.5.2StatusaffectedConstraints-
- Version 7.5.3StatusaffectedConstraints-
- Version 7.5.4StatusaffectedConstraints-
- Version 7.5.5StatusaffectedConstraints-
- Version 7.6.1StatusaffectedConstraints-
- Version 7.6.15StatusaffectedConstraints-
- Version 7.6.2StatusaffectedConstraints-
- Version 7.6.3StatusaffectedConstraints-
- Version 7.7.1StatusaffectedConstraints-
- Version 7.7.2StatusaffectedConstraints-
- Version 7.7.21StatusaffectedConstraints-
- Version 7.8.1StatusaffectedConstraints-
- Version 7.8.2StatusaffectedConstraints-
- Version 7.8.22StatusaffectedConstraints-
- Version 7.8.23StatusaffectedConstraints-
- Version 7.9.1StatusaffectedConstraints-
- Version 7.9.2StatusaffectedConstraints-
- Version 7.9.21StatusaffectedConstraints-
- Version
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cisco | Cisco IOS XR Software | n/a |
|
Running on/with
- n/a
- n/a
- n/a
- n/a
- n/a
- n/a
- n/a
- n/a
- n/a
- n/a
- n/a
- n/a
- n/a
- n/a
- n/a
- n/a
- n/a
- n/a
- n/a
- n/a
- n/a
- n/a
- n/a
- n/a
- n/a
- n/a
- n/a
- n/a
- n/a
- n/a
- n/a
- n/a
- n/a
- n/a
- n/a
- n/a
- n/a
- n/a
- n/a
- n/a
- n/a
- n/a
- n/a
- n/a
- n/a
- n/a
- n/a
- n/a
- n/a
- n/a
- n/a
- n/a
- n/a
- n/a
- n/a
- n/a
- n/a
- n/a
- n/a
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
No CVSS v3.0 score for this CVE.
No CVSS v2.0 score for this CVE.
This CVE is not in the KEV list.
CISA SSVC (Vulnrichment)
Stakeholder-Specific Vulnerability Categorization from CISA ADP.
Exploitation
NoneAutomatable
NoTechnical Impact
TotalDecision
n/aAssessed Mar 13, 2025 · SSVC 2.0.3
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
Score over time
2025–2026- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (4 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 0.17% (0.00166) | 5.29th | v5 (v2026.06.15) |
| Jun 15, 2026 | 0.14% (0.00144) | 4.00th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.01% (0.00014) | 1.37th | v4 (v2025.03.14) |
| Mar 13, 2025 | 0.04% (0.00043) | 11.94th | v3 (v2023.03.01) |
References (2)
Change history (0)
No recorded changes yet.