CVE-2017-9833
CVE-2017-9833 is a high-severity vulnerability in Boa with a CVSS 3.x base score of 7.5. Its EPSS exploit-prediction score of 68% places it in the 99th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-22.
Key facts
- Severity: High (CVSS 3.x base score 7.5)
- CVSS v2: 7.8
- EPSS exploit prediction: 68% (99th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-22
- Affected product: Boa
- Published:
- Last modified:
Description
/cgi-bin/wapopen in Boa 0.94.14rc21 allows the injection of "../.." using the FILECAMERA variable (sent by GET) to read files with root privileges. NOTE: multiple third parties report that this is a system-integrator issue (e.g., a vulnerability on one type of camera) because Boa does not include any wapopen program or any code to read a FILECAMERA variable.
Frequently asked questions
- What is CVE-2017-9833?
- /cgi-bin/wapopen in Boa 0.94.14rc21 allows the injection of "../.." using the FILECAMERA variable (sent by GET) to read files with root privileges. NOTE: multiple third parties report that this is a system-integrator issue (e.g., a vulnerability on one type of camera) because Boa does not include any wapopen program or any code to read a FILECAMERA variable.
- How severe is CVE-2017-9833?
- CVE-2017-9833 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
- Is CVE-2017-9833 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 68% (99th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2017-9833?
- CVE-2017-9833 affects Boa. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2017-9833?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
- When was CVE-2017-9833 published?
- CVE-2017-9833 was published on 2017-06-24 and last updated on 2026-06-17.
References
Affected products (1)
- cpe:2.3:a:boa:boa:0.94.14.21:*:*:*:*:*:*:*
More vulnerabilities in Boa
- CVE-2022-44117 — Critical (CVSS 9.8): Boa 0.94.14rc21 is vulnerable to SQL Injection via username. NOTE: the is disputed by multiple third parties because…
- CVE-2018-21027 — Critical (CVSS 9.8): Boa through 0.94.14rc21 allows remote attackers to trigger an out-of-memory (OOM) condition because malloc is…
- CVE-2021-33558 — High (CVSS 7.5): Boa 0.94.13 allows remote attackers to obtain sensitive information via a misconfiguration involving backup.html,…
- CVE-2018-21028 — High (CVSS 7.5): Boa through 0.94.14rc21 allows remote attackers to trigger a memory leak because of missing calls to the free function.
- CVE-2016-9564 — High (CVSS 7.5): Buffer overflow in send_redirect() in Boa Webserver 0.92r allows remote attackers to DoS via an HTTP GET request…
- CVE-2022-45956 — Medium (CVSS 5.3): Boa Web Server versions 0.94.13 through 0.94.14 fail to validate the correct security constraint on the HEAD HTTP…
Other CWE-22 (Path Traversal) vulnerabilities
- CVE-2026-48282 — Critical (CVSS 10.0): ColdFusion versions 2025.9, 2023.20 and earlier are affected by an Improper Limitation of a Pathname to a Restricted…
- CVE-2026-54917 — Critical (CVSS 10.0): SeaweedFS is a distributed storage system for object storage (S3), file systems, and Iceberg tables. Prior to 4.30, the…
- CVE-2026-11429 — Critical (CVSS 10.0): Two endpoints in the Vault Service ScriptsController, shared by Altium Enterprise Server and Altium 365, accept file…
- CVE-2026-34909 — Critical (CVSS 10.0): A malicious actor with access to the network could exploit a Path Traversal vulnerability found in UniFi OS devices to…
- CVE-2026-7411 — Critical (CVSS 10.0): In Eclipse BaSyx Java Server SDK versions prior to 2.0.0-milestone-10, inadequate path normalization in the Submodel…
- CVE-2026-36767 — Critical (CVSS 10.0): A path traversal vulnerability in the /content/images/add endpoint of shopizer v3.2.5 allows attackers write arbitrary…