CVE-2020-3453: cisco cisco small business rv series router firmware
Vulnerability summary
CVE-2020-3453 is a high (CVSS 7.7) vulnerability in cisco cisco small business rv series router firmware. EPSS estimates a 3.08% chance of exploitation in the next 30 days, higher than 87.4% of scored vulnerabilities.
Timeline
- 04-09-2020PublishedVulnerability first disclosed.
- 13-11-2024Last modifiedVulnerability information updated.
Description
Multiple vulnerabilities in the web-based management interface of Cisco Small Business RV340 Series Routers could allow an authenticated, remote attacker with administrative credentials to execute arbitrary commands on the underlying operating system (OS) as a restricted user. For more information about these vulnerabilities, see the Details section of this advisory.
CVSS metrics
3 scores · 2 sources · 2 versions- NVDNIST6.8MediumCVSS:3.1/AV:A/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:HDiffers
EPSS trend
Probability
3.08%
Chance of exploitation in the next 30 days
Percentile
87%
Versus all other CVEs
30-day change
0.00 pp
From 3.08% on 18-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root cause- CWE-119Improper Restriction of Operations within the Bounds of a Memory BufferThe product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data.
- CWE-20Improper Input ValidationThe product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.
Affected systems
Cisco5 products
- cisco small business rv series router firmwaren/a
- rv340_firmware< 1.0.03.19
- rv340w_firmware< 1.0.03.19
- rv345_firmware< 1.0.03.19
- rv345p_firmware< 1.0.03.19
1 vendor · 5 products
References
2 links- tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-rv-osinj-rce-pwTkPCJvVendor AdvisoryX Refsource CISCO