CVE-2023-20025A vulnerability in the web-based management interface of Cisco Small Business RV016, RV042, RV042G, and RV082 Routers could allow an…
- 9.0CriticalCVSS base score
- 1.6%Exploitation in 30 daysEPSS · top 23% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
A vulnerability in the web-based management interface of Cisco Small Business RV016, RV042, RV042G, and RV082 Routers could allow an unauthenticated, remote attacker to bypass authentication 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 bypass authentication and gain root access on the underlying operating system.
Timeline
ID reserved
By cisco
- 3 months later
· 3 months later
Published
- 2 years later
· 2 years 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 | Critical9.0 | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H |
| NVDNVD · Analyzed | 3.1 | Critical9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
- EPSS (exploitation in 30 days)
- 1.6% · top 23% of all CVEs (13 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: no · Technical impact: total
The list uses the assigner's score when there is one, then CISA's, then NVD's: Critical 9.0.
Affected products
Cisco · Cisco Small Business RV Series Router Firmware
- affected 2.0.0.19-tm
- affected 2.0.2.01-tm
- affected 1.3.12.19-tm
- affected 1.3.12.6-tm
- affected 1.3.13.02-tm
- affected 1.3.9.8-tm
- affected 4.0.0.7
- affected 4.0.2.08-tm
- affected 4.0.3.03-tm
- affected 4.0.4.02-tm
- affected 4.2.1.02
- affected 4.2.2.08
- affected 4.2.3.03
- affected 4.2.3.06
- affected 4.2.3.07
- affected 4.2.3.08
- affected 4.2.3.09
- affected 4.2.3.10
- affected 4.2.3.14
- affected 3.0.0.1-tm
- affected 3.0.0.19-tm
- affected 3.0.2.01-tm
- affected 4.1.1.01
- affected 4.1.0.02-tm
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
References1
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)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2023-24204 (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-2023-20025)Record last updated .