CVE-2025-28034: totolink a3000ru_firmware OS Command Injection
Vulnerability summary
CVE-2025-28034 is a critical (CVSS 9.8) OS Command Injection vulnerability in totolink a3000ru_firmware. EPSS estimates a 1.34% chance of exploitation in the next 30 days, higher than 70.9% of scored vulnerabilities. 2 public exploits are recorded.
Timeline
- 22-04-2025PublishedVulnerability first disclosed.
- 23-04-2025Last modifiedVulnerability information updated.
Description
TOTOLINK A800R V4.1.2cu.5137_B20200730, A810R V4.1.2cu.5182_B20201026, A830R V4.1.2cu.5182_B20201102, A950RG V4.1.2cu.5161_B20200903, A3000RU V5.9c.5185_B20201128, and A3100R V4.1.2cu.5247_B20211129 were found to contain a pre-auth remote command execution vulnerability in the NTPSyncWithHost function through the hostTime parameter.
CVSS metrics
2 scores · 2 sources · 1 version- NVDNIST9.8CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS trend
Probability
1.34%
Chance of exploitation in the next 30 days
Percentile
71%
Versus all other CVEs
30-day change
0.00 pp
From 1.34% on 20-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
2 foundExploit Reference (locrian-lightning-dc7.notion.site)
Maturity: unknown
Exploit Reference (locrian-lightning-dc7.notion.site)
Maturity: unknown
Weaknesses
CWE · root causeAffected systems
Totolink6 products
- a3000ru_firmware5.9c.5185_b20201128
- a3100r_firmware4.1.2cu.5247_b20211129
- a800r_firmware4.1.2cu.5137_b20200730
- a810r_firmware4.1.2cu.5182_b20201026
- a830r_firmware4.1.2cu.5182_b20201102
1 vendor · 6 products
References
2 links- locrian-lightning-dc7.notion.site/RCE2-1a98e5e2b1a280bebf53d868f1b1a711?pvs=74ExploitThird Party Advisory
- locrian-lightning-dc7.notion.site/CVE-2025-28034-RCE2-1a98e5e2b1a280bebf53d868f1b1a711ExploitThird Party Advisory