How severe is CVE-2023-26800?

CVE-2023-26800 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2023-26800 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (60th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-26800?

CVE-2023-26800 primarily affects Ruijienetworks Rg-ew1200r Firmware. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2023-26800?

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.

When was CVE-2023-26800 published?

CVE-2023-26800 was published on 2023-03-26 and last updated on 2026-06-17.

CVE-2023-26800

CVE-2023-26800 is a critical-severity vulnerability in Ruijienetworks Rg-ew1200r Firmware with a CVSS 3.x base score of 9.8. 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: Critical (CVSS 3.x base score 9.8)
EPSS exploit prediction: 1% (60th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-77
Affected product: Ruijienetworks Rg-ew1200r Firmware
Published: 2023-03-26
Last modified: 2026-06-17

Description

Ruijie Networks RG-EW1200 Wireless Routers EW_3.0(1)B11P204 was discovered to contain a command injetion vulnerability via the params.path parameter in the upgradeConfirm function.

Frequently asked questions

What is CVE-2023-26800?: Ruijie Networks RG-EW1200 Wireless Routers EW_3.0(1)B11P204 was discovered to contain a command injetion vulnerability via the params.path parameter in the upgradeConfirm function.
How severe is CVE-2023-26800?: CVE-2023-26800 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2023-26800 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (60th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-26800?: CVE-2023-26800 primarily affects Ruijienetworks Rg-ew1200r Firmware. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2023-26800?: 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.
When was CVE-2023-26800 published?: CVE-2023-26800 was published on 2023-03-26 and last updated on 2026-06-17.

References

https://github.com/winmt/my-vuls/tree/main/RG-EW1200

Affected products (3)

cpe:2.3:o:ruijienetworks:rg-ew1200r_firmware:ew_3.0\(1\)b11p204:*:*:*:*:*:*:*
cpe:2.3:o:ruijienetworks:rg-ew1200_firmware:ew_3.0\(1\)b11p204:*:*:*:*:*:*:*
cpe:2.3:o:ruijienetworks:rg-ew1200g_pro_firmware:ew_3.0\(1\)b11p204:*:*:*:*:*:*:*

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