How severe is CVE-2020-35476?

CVE-2020-35476 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-2020-35476 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 85% (100th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-35476?

CVE-2020-35476 affects Opentsdb. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2020-35476?

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-2020-35476 published?

CVE-2020-35476 was published on 2020-12-16 and last updated on 2026-06-17.

CVE-2020-35476

CVE-2020-35476 is a critical-severity vulnerability in Opentsdb with a CVSS 3.x base score of 9.8. Its EPSS exploit-prediction score of 85% places it in the 100th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-78.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v2: 7.5
EPSS exploit prediction: 85% (100th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-78
Affected product: Opentsdb
Published: 2020-12-16
Last modified: 2026-06-17

Description

A remote code execution vulnerability occurs in OpenTSDB through 2.4.0 via command injection in the yrange parameter. The yrange value is written to a gnuplot file in the /tmp directory. This file is then executed via the mygnuplot.sh shell script. (tsd/GraphHandler.java attempted to prevent command injections by blocking backticks but this is insufficient.)

Frequently asked questions

What is CVE-2020-35476?: A remote code execution vulnerability occurs in OpenTSDB through 2.4.0 via command injection in the yrange parameter. The yrange value is written to a gnuplot file in the /tmp directory. This file is then executed via the mygnuplot.sh shell script. (tsd/GraphHandler.java attempted to prevent command injections by blocking backticks but this is insufficient.)
How severe is CVE-2020-35476?: CVE-2020-35476 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-2020-35476 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 85% (100th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-35476?: CVE-2020-35476 affects Opentsdb. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2020-35476?: 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-2020-35476 published?: CVE-2020-35476 was published on 2020-12-16 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:opentsdb:opentsdb:*:*:*:*:*:*:*:*

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