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CVE-2025-28035

30
FAUCET Score

CVE-2025-28035 is a critical pre-authentication remote command execution vulnerability affecting TOTOLINK A830R V4.1.2cu.5182_B20201102, specifically within the setNoticeCfg function via the NoticeUrl parameter. With a CVSS score of 9.8, this flaw allows unauthenticated attackers to execute arbitrary commands with high impact on confidentiality, integrity, and availability, requiring no user interaction. While there is no known active exploitation or public exploit code (Metasploit, Nuclei, ExploitDB), the vulnerability has garnered significant community discussion, indicating potential future interest from threat actors.

Impacted Technologies

VendorProductVersion(s)CPE
4.1.2cu.5182_b20201102CPE matchmatch criteria
cpe:2.3:o:totolink:a830r_firmware:4.1.2cu.5182_b20201102:*:*:*:*:*:*:*
4.1.2cu.5247_b20211129CPE matchmatch criteria
cpe:2.3:o:totolink:a3100r_firmware:4.1.2cu.5247_b20211129:*:*:*:*:*:*:*
4.1.2cu.5182_b20201026CPE matchmatch criteria
cpe:2.3:o:totolink:a810r_firmware:4.1.2cu.5182_b20201026:*:*:*:*:*:*:*
4.1.2cu.5137_b20200730CPE matchmatch criteria
cpe:2.3:o:totolink:a800r_firmware:4.1.2cu.5137_b20200730:*:*:*:*:*:*:*
5.9c.5185_b20201128CPE matchmatch criteria
cpe:2.3:o:totolink:a3000ru_firmware:5.9c.5185_b20201128:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

9.8CRITICAL

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
1.22%
Probability of exploitation in next 30 days
EPSS Percentile
65.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0122 is in the 51st percentile among its peer group of 36,897 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

locrian-lightning-dc7.notion.site / CVE-2025-28035-CVE-2025-28036-RCE1-1a98e5e2b1a28081880dd817104b3af4
ExploitThird Party Advisory
locrian-lightning-dc7.notion.site / RCE1-1a98e5e2b1a28081880dd817104b3af4
ExploitThird Party Advisory