How severe is CVE-2020-25747?

CVE-2020-25747 has a CVSS 3.x base score of 9.4, 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 low, and availability high.

Is CVE-2020-25747 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (77th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-25747?

CVE-2020-25747 primarily affects Rubetek Rv-3406 Firmware. In total, 6 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2020-25747?

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-2020-25747 published?

CVE-2020-25747 was published on 2020-09-25 and last updated on 2026-06-17.

CVE-2020-25747

CVE-2020-25747 is a critical-severity vulnerability in Rubetek Rv-3406 Firmware with a CVSS 3.x base score of 9.4. 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-306.

Key facts

Severity: Critical (CVSS 3.x base score 9.4)
CVSS v2: 9.0
EPSS exploit prediction: 2% (77th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-306
Affected product: Rubetek Rv-3406 Firmware
Published: 2020-09-25
Last modified: 2026-06-17

Description

The Telnet service of Rubetek RV-3406, RV-3409, and RV-3411 cameras (firmware versions v342, v339) can allow a remote attacker to gain access to RTSP and ONFIV services without authentication. Thus, the attacker can watch live streams from the camera, rotate the camera, change some settings (brightness, clarity, time), restart the camera, or reset it to factory settings.

Frequently asked questions

What is CVE-2020-25747?: The Telnet service of Rubetek RV-3406, RV-3409, and RV-3411 cameras (firmware versions v342, v339) can allow a remote attacker to gain access to RTSP and ONFIV services without authentication. Thus, the attacker can watch live streams from the camera, rotate the camera, change some settings (brightness, clarity, time), restart the camera, or reset it to factory settings.
How severe is CVE-2020-25747?: CVE-2020-25747 has a CVSS 3.x base score of 9.4, 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 low, and availability high.
Is CVE-2020-25747 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (77th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-25747?: CVE-2020-25747 primarily affects Rubetek Rv-3406 Firmware. In total, 6 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2020-25747?: 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-2020-25747 published?: CVE-2020-25747 was published on 2020-09-25 and last updated on 2026-06-17.

References

https://github.com/jet-pentest/CVE-2020-25747

Affected products (6)

cpe:2.3:o:rubetek:rv-3406_firmware:339:*:*:*:*:*:*:*
cpe:2.3:o:rubetek:rv-3406_firmware:342:*:*:*:*:*:*:*
cpe:2.3:o:rubetek:rv-3409_firmware:339:*:*:*:*:*:*:*
cpe:2.3:o:rubetek:rv-3409_firmware:342:*:*:*:*:*:*:*
cpe:2.3:o:rubetek:rv-3411_firmware:339:*:*:*:*:*:*:*
cpe:2.3:o:rubetek:rv-3411_firmware:342:*:*:*:*:*:*:*

More vulnerabilities in Rubetek Rv-3406 Firmware

CVE-2020-25749 — Critical (CVSS 9.8): The Telnet service of Rubetek cameras RV-3406, RV-3409, and RV-3411 cameras (firmware versions v342, v339) could allow…
CVE-2020-25748 — High (CVSS 8.1): A Cleartext Transmission issue was discovered on Rubetek RV-3406, RV-3409, and RV-3411 cameras (firmware versions v342,…

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