CVE-2020-25499: totolink a3002r_firmware OS Command Injection
CVSS: 9.0v2.0HighModified
Published 09-12-2020Last modified 04-08-2024
Vulnerability summary
CVE-2020-25499 is a high (CVSS 9.0) OS Command Injection vulnerability in totolink a3002r_firmware. EPSS estimates a 4.20% chance of exploitation in the next 30 days, higher than 90.8% of scored vulnerabilities. 1 public exploit is recorded.
CVSS score
9.0/10
010
High · v2.0 (NVD)EPSS score
4.20%
0%100%
Low · -0.12 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1github
Timeline
- 09-12-2020PublishedVulnerability first disclosed.
- 04-08-2024Last modifiedVulnerability information updated.
Description
TOTOLINK A3002RU-V2.0.0 B20190814.1034 allows authenticated remote users to modify the system's 'Run Command'. An attacker can use this functionality to execute arbitrary OS commands on the router.
CVSS metrics
2 scores · 1 source · 2 versionsHigh 8.8Preferred score · NVD (NIST)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HSourcesSingle source
High 9.0Preferred score · NVD (NIST)
AV:N/AC:L/Au:S/C:C/I:C/A:CSourcesSingle source
EPSS trend
Probability
4.20%
Chance of exploitation in the next 30 days
Percentile
91%
Versus all other CVEs
30-day change
-0.12 pp
From 4.32% on 20-09-2026
20-09-202620-10-2026
EPSS score4.20%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
1 foundVulnerabilities
Maturity: poc
Weaknesses
CWE · root cause- CWE-78Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')The product constructs all or part of an OS command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended OS command when it is sent to a downstream component.
- CWE-862Missing AuthorizationThe product does not perform an authorization check when an actor attempts to access a resource or perform an action.
Affected systems
Totolink13 products
- a3002r_firmware< 1.1.1-b20200824.0128
- a3002ru-v1_firmware< 3.4.0-b20201030.1754
- a3002ru-v2_firmware< 2.1.1-b20200911.1756
- a702r-v2_firmware< 1.0.0-b20201028.1743
- a702r-v3_firmware< 1.0.0-b20201103.1713
1 vendor · 13 products
References
2 links- github.com/kdoos/Vulnerabilities/blob/main/RCE_TOTOLINK-A3002RU-V2X Refsource MISCExploitThird Party Advisory