CVE-2023-7311
CVE-2023-7311 is a critical-severity vulnerability with a CVSS 4.0 base score of 9.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-78.
Key facts
- Severity: Critical (CVSS 4.0 base score 9.3)
- EPSS exploit prediction: 2% (78th percentile)
- Actively exploited: Not listed in CISA KEV
- EU (EUVD) id: EUVD-2023-59994
- Weakness: CWE-78
- Published:
- Last modified:
Description
BYTEVALUE Intelligent Flow Control Router contains a command injection vulnerability via the /goform/webRead/open endpoint. The `path` parameter is not properly validated and is echoed into a shell context, allowing an attacker to inject and execute arbitrary shell commands on the device. Successful exploitation can lead to writing backdoors, privilege escalation on the host, and full compromise of the router and its management functions. VulnCheck has observed this vulnerability being targeted by the RondoDox botnet campaign.
Frequently asked questions
- What is CVE-2023-7311?
- BYTEVALUE Intelligent Flow Control Router contains a command injection vulnerability via the /goform/webRead/open endpoint. The `path` parameter is not properly validated and is echoed into a shell context, allowing an attacker to inject and execute arbitrary shell commands on the device. Successful exploitation can lead to writing backdoors, privilege escalation on the host, and full compromise of the router and its management functions. VulnCheck has observed this vulnerability being targeted by the RondoDox botnet campaign.
- How severe is CVE-2023-7311?
- CVE-2023-7311 has a CVSS 4.0 base score of 9.3, rated critical severity.
- Is CVE-2023-7311 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (78th percentile), an estimate of the probability of exploitation in the next 30 days.
- How do I fix CVE-2023-7311?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
- Does CVE-2023-7311 have an EU (EUVD) identifier?
- Yes. CVE-2023-7311 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2023-59994.
- When was CVE-2023-7311 published?
- CVE-2023-7311 was published on 2025-10-15 and last updated on 2026-06-17.
References
- https://blog.csdn.net/zkaqlaoniao/article/details/134328873
- https://github.com/adysec/nuclei_poc/blob/49c283b2bbb244c071786a2b768fbdde1b91f38e/poc/web/bytevalue_goform_webread_open_rce.yaml
- https://isc.sans.edu/diary/Exploit+against+Unnamed+Bytevalue+router+vulnerability+included+in+Mirai+Bot/30642
- https://www.vulncheck.com/advisories/bytevalue-intelligent-flow-control-router-command-injection
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