How severe is CVE-2026-25807?

CVE-2026-25807 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2026-25807 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (46th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-25807?

CVE-2026-25807 affects Taklaxbr Zai Shell. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-25807?

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.

Does CVE-2026-25807 have an EU (EUVD) identifier?

Yes. CVE-2026-25807 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-6394.

When was CVE-2026-25807 published?

CVE-2026-25807 was published on 2026-02-09 and last updated on 2026-06-17.

CVE-2026-25807

CVE-2026-25807 is a high-severity vulnerability in Taklaxbr Zai Shell with a CVSS 3.x base score of 8.8. 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-94.

Key facts

Severity: High (CVSS 3.x base score 8.8)
EPSS exploit prediction: 1% (46th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-6394
Weakness: CWE-94
Affected product: Taklaxbr Zai Shell
Published: 2026-02-09
Last modified: 2026-06-17

Description

ZAI Shell is an autonomous SysOps agent designed to navigate, repair, and secure complex environments. Prior to 9.0.3, the P2P terminal sharing feature (share start) opens a TCP socket on port 5757 without any authentication mechanism. Any remote attacker can connect to this port using a simple socket script. An attacker who connects to a ZAI-Shell P2P session running in --no-ai mode can send arbitrary system commands. If the host user approves the command without reviewing its contents, the command executes directly with the user's privileges, bypassing all Sentinel safety checks. This vulnerability is fixed in 9.0.3.

Frequently asked questions

What is CVE-2026-25807?: ZAI Shell is an autonomous SysOps agent designed to navigate, repair, and secure complex environments. Prior to 9.0.3, the P2P terminal sharing feature (share start) opens a TCP socket on port 5757 without any authentication mechanism. Any remote attacker can connect to this port using a simple socket script. An attacker who connects to a ZAI-Shell P2P session running in --no-ai mode can send arbitrary system commands. If the host user approves the command without reviewing its contents, the command executes directly with the user's privileges, bypassing all Sentinel safety checks. This vulnerability is fixed in 9.0.3.
How severe is CVE-2026-25807?: CVE-2026-25807 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2026-25807 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (46th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-25807?: CVE-2026-25807 affects Taklaxbr Zai Shell. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-25807?: 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.
Does CVE-2026-25807 have an EU (EUVD) identifier?: Yes. CVE-2026-25807 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-6394.
When was CVE-2026-25807 published?: CVE-2026-25807 was published on 2026-02-09 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:taklaxbr:zai_shell:*:*:*:*:*:python:*:*

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