How severe is CVE-2021-36711?

CVE-2021-36711 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-2021-36711 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 12% (96th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-36711?

CVE-2021-36711 affects Octobot. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-36711?

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-2021-36711 published?

CVE-2021-36711 was published on 2022-07-16 and last updated on 2026-06-17.

CVE-2021-36711

CVE-2021-36711 is a critical-severity vulnerability in Octobot with a CVSS 3.x base score of 9.8. Its EPSS exploit-prediction score of 12% places it in the 96th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-434.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
EPSS exploit prediction: 12% (96th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-434
Affected product: Octobot
Published: 2022-07-16
Last modified: 2026-06-17

Description

WebInterface in OctoBot before 0.4.4 allows remote code execution because Tentacles upload is mishandled.

Frequently asked questions

What is CVE-2021-36711?: WebInterface in OctoBot before 0.4.4 allows remote code execution because Tentacles upload is mishandled.
How severe is CVE-2021-36711?: CVE-2021-36711 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-2021-36711 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 12% (96th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-36711?: CVE-2021-36711 affects Octobot. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-36711?: 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-2021-36711 published?: CVE-2021-36711 was published on 2022-07-16 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:octobot:octobot:*:*:*:*:*:*:*:*

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