CVE-2021-31822
CVE-2021-31822 is a high-severity vulnerability in Octopus Tentacle with a CVSS 3.x base score of 7.8. 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-276.
Key facts
- Severity: High (CVSS 3.x base score 7.8)
- CVSS v2: 4.6
- EPSS exploit prediction: 0% (11th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-276
- Affected product: Octopus Tentacle
- Published:
- Last modified:
Description
When Octopus Tentacle is installed on a Linux operating system, the systemd service file permissions are misconfigured. This could lead to a local unprivileged user modifying the contents of the systemd service file to gain privileged access.
Frequently asked questions
- What is CVE-2021-31822?
- When Octopus Tentacle is installed on a Linux operating system, the systemd service file permissions are misconfigured. This could lead to a local unprivileged user modifying the contents of the systemd service file to gain privileged access.
- How severe is CVE-2021-31822?
- CVE-2021-31822 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
- Is CVE-2021-31822 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (11th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2021-31822?
- CVE-2021-31822 affects Octopus Tentacle. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2021-31822?
- 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-2021-31822 published?
- CVE-2021-31822 was published on 2021-11-24 and last updated on 2026-06-17.
References
Affected products (1)
- cpe:2.3:a:octopus:tentacle:*:*:*:*:*:*:*:*
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