CVE-2023-20118: Cisco Small Business RV Series Routers Command Injection Vulnerability
Actively exploited. At least one CVE in this advisory is listed in the CISA Known Exploited Vulnerabilities catalog — exploitation has been observed in the wild. Treat remediation as urgent.
Multiple Cisco Small Business RV Series Routers contains a command injection vulnerability in the web-based management interface. Successful exploitation could allow an authenticated, remote attacker to gain root-level privileges and access unauthorized data.
CSIRTS triage
- What
- A command injection vulnerability in the web-based management interface allows an authenticated attacker to gain root-level privileges.
- Who is affected
- Users of Cisco Small Business RV Series Routers with access to the management interface.
- Urgency
- Critical urgency for remediation as the vulnerability is actively exploited.
- Action
- Apply the latest firmware updates to mitigate the vulnerability.
AI-assisted analysis generated from the source advisory — verify against the original.
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Details
Original advisory: https://nvd.nist.gov/vuln/detail/CVE-2023-20118
Exploitation outlook
EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.
- Exploitation confirmedCVE-2023-20118Already exploited in the wild (CISA KEV) — the prediction phase is over. Patch now. Riskier than 99% of all scored CVEs.
Referenced CVEs
| CVE | CSIRTS overview | External |
|---|---|---|
| CVE-2023-20118 | coverage & exploitation status | NVD · CVE.org |
Recent advisories for Cisco Small Business
A cluster of recent advisories against the same product widens the attack surface — attackers routinely chain freshly published CVEs on one product, so review these together.
- criticalexploitedCVE-2022-20699: Cisco Small Business RV Series Routers Stack-based Buffer Overflow Vulnerabilitycisa-kev · 2022-03-03
- criticalexploitedCVE-2022-20701: Cisco Small Business RV Series Routers Stack-based Buffer Overflow Vulnerabilitycisa-kev · 2022-03-03
- criticalexploitedCVE-2022-20700: Cisco Small Business RV Series Routers Stack-based Buffer Overflow Vulnerabilitycisa-kev · 2022-03-03
- criticalexploitedCVE-2019-1652: Cisco Small Business Routers Improper Input Validation Vulnerabilitycisa-kev · 2022-03-03
- criticalexploitedCVE-2022-20708: Cisco Small Business RV Series Routers Stack-based Buffer Overflow Vulnerabilitycisa-kev · 2022-03-03
- criticalexploitedCVE-2022-20703: Cisco Small Business RV Series Routers Stack-based Buffer Overflow Vulnerabilitycisa-kev · 2022-03-03
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