How severe is CVE-2020-11817?

CVE-2020-11817 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-2020-11817 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-2020-11817?

CVE-2020-11817 affects Rukovoditel. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2020-11817?

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-2020-11817 published?

CVE-2020-11817 was published on 2020-04-27 and last updated on 2026-06-17.

CVE-2020-11817

CVE-2020-11817 is a critical-severity vulnerability in Rukovoditel 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-434.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v2: 6.8
EPSS exploit prediction: 2% (78th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-434
Affected product: Rukovoditel
Published: 2020-04-27
Last modified: 2026-06-17

Description

In Rukovoditel V2.5.2, attackers can upload an arbitrary file to the server just changing the the content-type value. As a result of that, an attacker can execute a command on the server. This specific attack only occurs with the Maintenance Mode setting.

Frequently asked questions

What is CVE-2020-11817?: In Rukovoditel V2.5.2, attackers can upload an arbitrary file to the server just changing the the content-type value. As a result of that, an attacker can execute a command on the server. This specific attack only occurs with the Maintenance Mode setting.
How severe is CVE-2020-11817?: CVE-2020-11817 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-2020-11817 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-2020-11817?: CVE-2020-11817 affects Rukovoditel. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2020-11817?: 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-2020-11817 published?: CVE-2020-11817 was published on 2020-04-27 and last updated on 2026-06-17.

References

https://fatihhcelik.blogspot.com/2020/01/rukovoditel-maintenance-mode.html

Affected products (1)

cpe:2.3:a:rukovoditel:rukovoditel:2.5.2:*:*:*:*:*:*:*

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