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CVE-2021-27825

37
FAUCET Score

CVE-2021-27825 is a directory traversal vulnerability affecting Mercury MAC1200R devices and their firmware, allowing unauthenticated attackers to read arbitrary files by manipulating web-static/ URLs. This vulnerability carries a high CVSS score of 7.5, indicating a severe risk due to its network-based attack vector, low attack complexity, and high confidentiality impact without requiring user interaction. While not listed on the KEV catalog or Hot List, public exploit code is available on ExploitDB, though there is minimal community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
All Versions ImpactedCPE matchmatch criteria
cpe:2.3:o:mercurycom:mac1200r_firmware:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.5HIGH

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
Exploitability Score
3.9
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
7.80%
Probability of exploitation in next 30 days
EPSS Percentile
94.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
ExploitDB: EDB-51315 · Apr 7, 2023
This CVE's current EPSS score of 0.0780 is in the 90th percentile among its peer group of 51,553 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

packetstormsecurity.com / files/171771/MAC-1200R-Directory-Traversal.html
Third Party AdvisoryVDB Entry
mercurycom.com.cn / product-1-1.html
Product