CVE-2021-43159
CVE-2021-43159 is a high-severity vulnerability in Ruijienetworks Reyeeos with a CVSS 3.x base score of 8.8. 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-77.
Key facts
- Severity: High (CVSS 3.x base score 8.8)
- CVSS v2: 6.5
- EPSS exploit prediction: 2% (78th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-77
- Affected product: Ruijienetworks Reyeeos
- Published:
- Last modified:
Description
A Remote Code Execution (RCE) vulnerability exists in Ruijie Networks Ruijie RG-EW Series Routers up to ReyeeOS 1.55.1915 / EW_3.0(1)B11P55 via the setSessionTime function in /cgi-bin/luci/api/common..
Frequently asked questions
- What is CVE-2021-43159?
- A Remote Code Execution (RCE) vulnerability exists in Ruijie Networks Ruijie RG-EW Series Routers up to ReyeeOS 1.55.1915 / EW_3.0(1)B11P55 via the setSessionTime function in /cgi-bin/luci/api/common..
- How severe is CVE-2021-43159?
- CVE-2021-43159 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
- Is CVE-2021-43159 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.
- What products are affected by CVE-2021-43159?
- CVE-2021-43159 affects Ruijienetworks Reyeeos. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2021-43159?
- 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-2021-43159 published?
- CVE-2021-43159 was published on 2022-05-04 and last updated on 2026-07-09.
References
Affected products (1)
- cpe:2.3:o:ruijienetworks:reyeeos:*:*:*:*:*:*:*:*
More vulnerabilities in Ruijienetworks Reyeeos
- CVE-2021-43163 — Critical (CVSS 9.8): A Remote Code Execution (RCE) vulnerability exists in Ruijie Networks Ruijie RG-EW Series Routers up to ReyeeOS…
- CVE-2021-43164 — High (CVSS 8.8): A Remote Code Execution (RCE) vulnerability exists in Ruijie Networks Ruijie RG-EW Series Routers up to ReyeeOS…
- CVE-2021-43162 — High (CVSS 8.8): A Remote Code Execution (RCE) vulnerability exists in Ruijie Networks Ruijie RG-EW Series Routers up to ReyeeOS…
- CVE-2021-43161 — High (CVSS 8.8): A Remote Code Execution (RCE) vulnerability exists in Ruijie Networks Ruijie RG-EW Series Routers up to ReyeeOS…
- CVE-2021-43160 — High (CVSS 8.8): A Remote Code Execution (RCE) vulnerability exists in Ruijie Networks Ruijie RG-EW Series Routers up to ReyeeOS…
All CVEs affecting Ruijienetworks Reyeeos →
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