Cisco today has released security updates to address critical remote code execution (RCE), authentication bypass, and static default credential vulnerabilities affecting multiple router and firewall devices that could lead to full device takeover.
Cisco also issued a security update to patch a privilege escalation vulnerability in the Cisco Prime License Manager software.
According to the company, there are no workarounds that could be applied to address these vulnerabilities.
The five security flaws patched today received 9.8 CVSS base score qualitative severity ratings from Cisco which makes them all critical vulnerabilities.
Remotely exploitable by unauthenticated attackers
They can also be remotely exploited by unauthenticated attackers as part of low complexity attacks that don’t require user interaction.
A full list of all critical security issues addressed by Cisco today is available in the table embedded below, together with links to their respective security advisories.
| Vulnerability | CVE-ID |
| Cisco Small Business RV110W Wireless-N VPN Firewall Static Default Credential Vulnerability | CVE-2020-3330 |
| Cisco Small Business RV110W, RV130, RV130W, and RV215W Routers Management Interface Remote Command Execution Vulnerability | CVE-2020-3323 |
| Cisco RV110W, RV130, RV130W, and RV215W Routers Authentication Bypass Vulnerability | CVE-2020-3144 |
| Cisco RV110W and RV215W Series Routers Arbitrary Code Execution Vulnerability | CVE-2020-3331 |
| Cisco Prime License Manager Privilege Escalation Vulnerability | CVE-2020-3140 |
“The Cisco Product Security Incident Response Team (PSIRT) is not aware of any public announcements or malicious use of the vulnerability that is described in this advisory,” the company says in all five advisories.
The vulnerabilities were reported to Cisco by the following external security researchers: Larryxi of XDSEC, Gyengtak Kim, Jeongun Baek, and Sanghyuk Lee of GeekPwn, Quentin Kaiser, and Adam Engle of AdventHealth.
Cisco today also addressed 22 high and medium severity security vulnerabilities affecting multiple router models and Cisco SD-WAN Solution Software versions among others.
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