Known exploited vulnerability
CVE-2019-15271
The short answer
CVE-2019-15271 affects Cisco Cisco Small Business RV Series Router Firmware and is rated high (CVSS 8.8). CISA added it to the Known Exploited Vulnerabilities catalog on 2022-06-08: attackers are using it, so patch it first.
What it is
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.
Weakness: CWE-502.
Severity
8.8 high
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Exploited (CISA KEV)
Yes, since Jun 8, 2022
Federal due date Jun 22, 2022
EPSS, next 30 days
5.5%
Higher than 93% of scored CVEs
How it can be exploited
- Attack vector
- Network
- Attack complexity
- Low
- Privileges required
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality impact
- High
- Integrity impact
- High
- Availability impact
- High
What CISA says to do
Apply updates per vendor instructions.
Affected products
Cisco Small Business RV Series Router Firmware. NVD's record lists the exact affected versions.
References
- tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20191106-sbrv-cmd-x Vendor Advisory
- tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20191106-sbrv-cmd-x Vendor Advisory
- www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2019-15271 US Government Resource
Questions
Is CVE-2019-15271 being exploited?
Yes. CISA added CVE-2019-15271 to its Known Exploited Vulnerabilities catalog on 2022-06-08, with a federal remediation due date of 2022-06-22.
How do I fix CVE-2019-15271?
CISA's required action: Apply updates per vendor instructions.
From NVD, CISA KEV, FIRST EPSS and OSV.dev, checked . Status on NVD: Analyzed. The description is NVD's text, quoted as published.
Related
Latest CVEs this week
Critical and High CVEs from the last 7 days, with KEV and EPSS.
Exploited vulnerabilities by vendor
Every vendor in CISA's KEV catalog, with its count.
Cisco exploited vulnerabilities
Everything CISA lists as exploited for Cisco.
Vulnerability watch
A briefing and a fix pull request when an advisory hits your dependencies.
Know the day a CVE lands in your code
Connect a GitHub repository and ZeusQA checks its dependencies daily, briefs each advisory and opens the fix. Three test runs free, no card.