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CVE-2017-9833

79
FAUCET Score

CVE-2017-9833 describes a path traversal vulnerability in Boa web server version 0.94.14rc21, specifically within the /cgi-bin/wapopen component, allowing an attacker to read arbitrary files with root privileges by injecting "../.." via the FILECAMERA GET variable. This vulnerability is rated as High severity (CVSS 7.5) due to its network-based attack vector, low complexity, and high impact on confidentiality. While the Boa project itself states this is a system integrator issue, exploit intelligence indicates active exploitation, with Nuclei templates and an ExploitDB entry available. The vulnerability has garnered significant community discussion and media coverage, including reports of its use in attacks against energy organizations.

Impacted Technologies

VendorProductVersion(s)CPE
0.94.14.21CPE matchmatch criteria
cpe:2.3:a:boa:boa:0.94.14.21:*:*:*:*:*:*:*

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
68.24%
Probability of exploitation in next 30 days
EPSS Percentile
99.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
Nuclei: CVE-2017-9833 · Mar 7, 2022
ExploitDB: EDB-42290 · Jun 20, 2017
This CVE's current EPSS score of 0.6824 is in the 99th percentile among its peer group of 51,506 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

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

pastebin.com / raw/rt7LJvyF
ExploitThird Party Advisory
exploit-db.com / exploits/42290
ExploitThird Party AdvisoryVDB Entry