CVE-2023-20118A vulnerability in the web-based management interface of Cisco Small Business Routers RV016, RV042, RV042G, RV082, RV320, and RV325…
- 6.5MediumCVSS base score
- 54.1%Exploitation in 30 daysEPSS · top 1.0% of all CVEs
- YesKnown exploitedin CISA's KEV since 3 Mar 2025
- YesPublic exploitsa reference or SSVC says so
Description
A vulnerability in the web-based management interface of Cisco Small Business Routers RV016, RV042, RV042G, RV082, RV320, and RV325 Routers could allow an authenticated, remote attacker to execute arbitrary commands on an affected device. This vulnerability is due to improper validation of user input within incoming HTTP packets. An attacker could exploit this vulnerability by sending a crafted HTTP request to the web-based management interface. A successful exploit could allow the attacker to gain root-level privileges and access unauthorized data. To exploit this vulnerability, an attacker would need to have valid administrative credentials on the affected device. Cisco has not and will not release software updates that address this vulnerability. However, administrators may disable the affected feature as described in the Workarounds ["#workarounds"] section. {{value}} ["%7b%7bvalue%7d%7d"])}]]
Exploited in the wild
CISA lists this vulnerability in its Known Exploited Vulnerabilities catalog as Cisco Small Business RV Series Routers Command Injection Vulnerability.
- Added
- 3 Mar 2025
- Fix due (US federal)
- 24 Mar 2025
- Used by ransomware
- Not known
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
ENISA's EU Vulnerability Database lists it as exploited, from CISA's KEV, since 3 Mar 2025.
Public exploit
An exploit or proof of concept is public: anyone can try it against an unpatched system. CISA's SSVC rates its exploitation: it is being exploited.
Timeline
ID reserved
By cisco
- 5 months later
· 5 months later
Published
- 23 months later
· 23 months later
Added to CISA KEV
Known exploited in the wild
- 8 months later
· 8 months later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| ciscoCNA (assigner) | 3.1 | Medium6.5 | CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N |
| NVDNVD · Analyzed | 3.1 | High7.2 | CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H |
- EPSS (exploitation in 30 days)
- 54.1% · top 1.0% of all CVEs (12 Nov 2026)
- CISA SSVC
- Exploitation: active · Automatable: no · Technical impact: total
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 6.5.
Affected products
Cisco · Cisco Small Business RV Series Router Firmware
- affected 1.0.1.17
- affected 1.0.2.03
- affected 1.1.0.09
- affected 1.1.1.19
- affected 1.1.1.06
- affected 1.2.1.13
- affected 1.2.1.14
- affected 1.3.1.12
- affected 1.3.2.02
- affected 1.3.1.10
- affected 1.4.2.15
- affected 1.4.2.17
- affected 1.4.2.19
- affected 1.4.2.20
- affected 1.4.2.22
- affected 1.5.1.05
- affected 1.5.1.11
- affected 1.5.1.13
What to do
Exploitation: The Cisco Product Security Incident Response Team (PSIRT) is aware that proof-of-concept exploit code is available for vulnerabilities CVE-2023-20025 and CVE-2023-20026 that are described in this advisory. In March 2025, the Cisco PSIRT became aware of additional attempted exploitation of some of these vulnerabilities in the wild. Cisco continues to strongly recommend that customers upgrade their hardware to Meraki or Cisco 1000 Series Integrated Services Routers to remediate these vulnerabilities.
References
References2
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- CISA KEV catalog (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2023-24297 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2023-20118)Record last updated .