CVE-2021-1472
CriticalExploitedPublic exploitMultiple vulnerabilities exist in the web-based management interface of Cisco Small Business RV Series Routers.
Published Feb 3, 2022 · Updated Nov 8, 2024 · Also known as TR-22-0108
Key Facts
Patch immediately- CVE-2021-1472 is a critical-severity vulnerability (CVSS 9.8 v3.1) affecting Rv160 Firmware (Cisco), Rv160w Firmware (Cisco), Rv260 Firmware (Cisco) and 7 more products.
- It is exploited in the wild, listed in Industry KEV feed, CIRCL KEV since Oct 7, 2021. Public exploit code is available.
- EPSS estimates a 72% probability of exploitation in the next 30 days.
- Fixed versions are available, including Rv160 Firmware 1.0.01.03, Rv160w Firmware 1.0.01.03, Rv260 Firmware 1.0.01.03.
- Brandefense priority: patch immediately, because it is listed as exploited in the wild.
CVSS v3.1
9.8
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS (30-day exploit likelihood)
72%
Higher than 99.4% of all scored CVEs
Exploited in the wild
Yes
2 catalog listings
Public exploit code
Available
Proof-of-concept or weaponized module
Get the full CVE-2021-1472 brief as a PDF
Every affected product and fixed release, exploitation status and a first 24 hours response checklist, emailed within minutes.
Description
Multiple vulnerabilities exist in the web-based management interface of Cisco Small Business RV Series Routers. A remote attacker could execute arbitrary commands or bypass authentication and upload files on an affected device. For more information about these vulnerabilities, see the Details section of this advisory.
Known-Exploited Catalog Listings
| Catalog | Added | Remediation due | Ransomware use |
|---|---|---|---|
| Industry KEV feed | Oct 7, 2021 | n/a | Not reported |
| CIRCL KEV | Jul 30, 2026 | n/a | Not reported |
Required action: Apply remediations or mitigations per vendor instructions or discontinue use of the product if remediation or mitigations are unavailable.
Affected Products
10 affected entries in total| Product | Affected versions | Fixed in |
|---|---|---|
| Rv160 FirmwareCisco | See advisory | 1.0.01.03 |
| Rv160w FirmwareCisco | See advisory | 1.0.01.03 |
| Rv260 FirmwareCisco | See advisory | 1.0.01.03 |
| Rv260p FirmwareCisco | See advisory | 1.0.01.03 |
| Rv260w FirmwareCisco | See advisory | 1.0.01.03 |
Patched Releases
Rv160 Firmware
1.0.01.03
Rv160w Firmware
1.0.01.03
Rv260 Firmware
1.0.01.03
Rv260p Firmware
1.0.01.03
Rv260w Firmware
1.0.01.03
Rv340 Firmware
1.0.03.21
Rv340w Firmware
1.0.03.21
Rv345 Firmware
1.0.03.21
Rv345p Firmware
1.0.03.21
Timeline
Added to Industry KEV feed
Oct 7, 2021
Publicly disclosed
Feb 3, 2022
Last updated
Nov 8, 2024
Added to CIRCL KEV
Jul 30, 2026
Weakness Type
- CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer
- CWE-287 Improper Authentication
References
- advisoryhttps://cxsecurity.com/issue/WLB-2022020006
- advisory20210419 [CVE-2021-1472/CVE-2021-1473] Cisco RV Series Authentication Bypass and Remote Command Execution
- advisoryhttps://github.com/rapid7/metasploit-framework
- advisoryhttps://metasploit.com/download
- advisoryhttps://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-cucm-inf-disc-wCxZNjL2
FAQ
Common Questions.
Multiple vulnerabilities exist in the web-based management interface of Cisco Small Business RV Series Routers.
Affected: Rv160 Firmware (Cisco); Rv160w Firmware (Cisco); Rv260 Firmware (Cisco), among others. The full list is in the CVE brief.
It is exploited in the wild, listed in Industry KEV feed, CIRCL KEV since Oct 7, 2021.
No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.
Public exploit code is available.
Fixed versions are available, including Rv160 Firmware 1.0.01.03, Rv160w Firmware 1.0.01.03, Rv260 Firmware 1.0.01.03.
Brandefense priority: patch immediately, because it is listed as exploited in the wild.
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