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CVE-2019-15271

HIGHCVSS 8.8/10Actively ExploitedEPSS 5.98%

Last modified

CVE-2019-15271 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. 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. CISA has confirmed active exploitation in the wild. EPSS estimates a 5.98% chance of exploitation in the next 30 days.

Description

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.

Metrics

CVSS 3.1
8.8/10

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS Probability
5.98%

92.4th percentile

Probability of exploitation in the next 30 days. Learn more

Exploitation Status

This vulnerability is listed in CISA’s Known Exploited Vulnerabilities catalog, confirming active exploitation in the wild. Federal agencies must remediate by .

Weakness Enumeration

Affected Software

VendorProductVersions
CiscoRv016 Multi-Wan Vpn Firmware< 4.2.3.10
CiscoRv042 Dual Wan Vpn Firmware< 4.2.3.10
CiscoRv042g Dual Gigabit Wan Vpn Firmware< 4.2.3.10
CiscoRv082 Dual Wan Vpn Firmware< 4.2.3.10

References

Timeline

Published
Last Modified
Status
Analyzed

Frequently Asked Questions

What is 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.
How severe is CVE-2019-15271?
CVE-2019-15271 has a CVSS score of 8.8/10 (HIGH severity). The EPSS model estimates a 5.98% probability of exploitation in the next 30 days. This vulnerability is listed in CISA's Known Exploited Vulnerabilities catalog.
How do I fix CVE-2019-15271?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2019-15271?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST