Is CVE-2023-25826 actively exploited?

No active exploitation of CVE-2023-25826 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2023-25826 be exploited remotely?

Yes. CVE-2023-25826 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2023-25826?

CVE-2023-25826 has a CVSS score of 9.8 (CRITICAL).

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CRITICAL

CVE-2023-25826

CWE-78Published: May 3, 2023· Updated: Jun 17, 2026

9.8

CVSS v3.1

Official Description

Due to insufficient validation of parameters passed to the legacy HTTP query API, it is possible to inject crafted OS commands into multiple parameters and execute malicious code on the OpenTSDB host system. This exploit exists due to an incomplete fix that was made when this vulnerability was previously disclosed as CVE-2020-35476. Regex validation that was implemented to restrict allowed input to the query API does not work as intended, allowing crafted commands to bypass validation.

NVD Source

Risk Analysis

OpenTSDB is vulnerable to OS command injection due to insufficient validation in the legacy HTTP query API. This critical flaw allows remote attackers to execute arbitrary code on the host system, bypassing previous security fixes.

No public exploit is known, and it is not in the CISA KEV. The vulnerability is remotely exploitable with low attack complexity.

Recommended Action

Disable the legacy HTTP query API if not required and ensure all inputs are strictly validated against a robust allowlist.

Generated by the CTIWATCH analysis pipeline from this CVE's metadata (CVSS, EPSS, KEV status, exploit intelligence). Verify against vendor advisories before acting.

Technical Analysis

CVE-2023-25826 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 9.8.