A vulnerability in the ROM Monitor (ROMMON) code of Cisco IR800 Integrated Services Router Software could allow an unauthenticated, local attacker to boot an unsigned Hypervisor on an affected device and compromise the integrity of the system
Published Sep 7, 2017
6.4
MEDIUMCVSS 3.0
EPSS 0.42%
Description
A vulnerability in the ROM Monitor (ROMMON) code of Cisco IR800 Integrated Services Router Software could allow an unauthenticated, local attacker to boot an unsigned Hypervisor on an affected device and compromise the integrity of the system. The vulnerability is due to insufficient sanitization of user input. An attacker who can access an affected router via the console could exploit this vulnerability by entering ROMMON mode and modifying ROMMON variables. A successful exploit could allow the attacker to execute arbitrary code and install a malicious version of Hypervisor firmware on an affected device. Cisco Bug IDs: CSCvb44027.
Affected products
- Vendor n/a Product Cisco IR800 Integrated Services Router Defaultn/a
- Version Cisco IR800 Integrated Services RouterStatusaffectedConstraints-
- 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 | ||||||
|---|---|---|---|---|---|---|---|---|---|
| n/a | Cisco IR800 Integrated Services Router | n/a |
|
Running on/with
- 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.
No CVSS v3.1 score for this CVE.
CVSS:3.0/AV:P/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
AV:L/AC:M/Au:N/C:C/I:C/A:C
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
Score over time
2021–2026- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
Percentile over time
- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
Table of values (8 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 0.42% (0.00416) | 33.53th | v5 (v2026.06.15) |
| Sep 20, 2026 | 0.42% (0.00416) | 35.55th | v5 (v2026.06.15) |
| Jul 20, 2024 | 0.08% (0.00083) | 35.77th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.08% (0.00084) | 34.23th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.60% (0.01603) | 75.67th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.56% (0.01559) | 51.96th | v2 (v2022.01.01) |
| Feb 3, 2022 | 0.78% (0.00779) | 21.55th | v5 (v2026.06.15) |
| Apr 14, 2021 | 0.78% (0.00779) | 0.00th | v1 |
References (3)
- http://www.securityfocus.com/bid/100689 vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry
- http://www.securitytracker.com/id/1039275 vdb-entryx_refsource_SECTRACKThird Party AdvisoryVDB Entry
- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170906-isr x_refsource_CONFIRMVendor Advisory
| Link | Providers | Tags |
|---|---|---|
| http://www.securityfocus.com/bid/100689 | vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry | |
| http://www.securitytracker.com/id/1039275 | vdb-entryx_refsource_SECTRACKThird Party AdvisoryVDB Entry | |
| https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170906-isr | x_refsource_CONFIRMVendor Advisory |
Change history (0)
No recorded changes yet.