Deserialization in Cisco Small Business Rv Series Router Firmware
CVE-2019-15271
A vulnerability in the web-based management interface of certain Cisco Small Business RV Series Routers could allow an authenticated, remote attacker to execute arbitrary commands with root privileges. The attacker must have either a valid credential or an active session token. The vulnerability is due to lack of input validation of the HTTP payload. An attacker could exploit this vulnerability by sending a malicious HTTP request to the web-based management interface of the targeted device. A successful exploit could allow the attacker to execute commands with root privileges.
Vulnerability class: Insecure Deserialization
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.055 (92.7th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 93rd percentile — 92.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.060 · newest: 0.055 · change: -0.005
Affected products
- Cisco Small Business Rv Series Router Firmware — versions unspecified
- Cisco Rv016 Multi-Wan Vpn
- Cisco Rv016 Multi-Wan Vpn Firmware
- Cisco Rv042 Dual Wan Vpn
- Cisco Rv042 Dual Wan Vpn Firmware
- Cisco Rv042g Dual Gigabit Wan Vpn
- Cisco Rv042g Dual Gigabit Wan Vpn Firmware
- Cisco Rv082 Dual Wan Vpn
- Cisco Rv082 Dual Wan Vpn Firmware
Weakness classification (CWE)
CISA KEV (Known Exploited Vulnerabilities)
This CVE is on the CISA KEV catalog, added on . CISA KEV inclusion means CISA has confirmed in-the-wild exploitation; US federal agencies are required to remediate within a published due date.
BOD 22-01 due date: .
Required action: Apply updates per vendor instructions.
Public proof-of-concept exploits
References
- tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20191106… (vendor-advisory, Vendor Advisory)
- 134c704f-9b21-4f2e-91b3-4a467353bcc0 (US Government Resource)
Frequently asked questions
- What is CVE-2019-15271?
- CVE-2019-15271 is a high-severity vulnerability in Cisco Small Business Rv Series Router Firmware, classified under Deserialization of Untrusted Data. CVSS score: 8.8/10. Published 2019-11-26.
- How severe is CVE-2019-15271?
- High severity. CVSS v3 base score is 8.8 out of 10.
- Is CVE-2019-15271 known to be exploited?
- Yes. CVE-2019-15271 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2022-06-08), indicating it is being actively exploited. 2 public proof-of-concept repositories are indexed.