How severe is CVE-2025-67733?

CVE-2025-67733 has a CVSS 3.x base score of 8.5, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity low, and availability high.

Is CVE-2025-67733 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (44th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-67733?

CVE-2025-67733 affects Lfprojects Valkey. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-67733?

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-2025-67733 have an EU (EUVD) identifier?

Yes. CVE-2025-67733 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-207626.

When was CVE-2025-67733 published?

CVE-2025-67733 was published on 2026-02-23 and last updated on 2026-06-30.

CVE-2025-67733

CVE-2025-67733 is a high-severity vulnerability in Lfprojects Valkey with a CVSS 3.x base score of 8.5. 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-74.

Key facts

Severity: High (CVSS 3.x base score 8.5)
EPSS exploit prediction: 1% (44th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-207626
Weakness: CWE-74
Affected product: Lfprojects Valkey
Published: 2026-02-23
Last modified: 2026-06-30

Description

Valkey is a distributed key-value database. Prior to versions 9.0.2, 8.1.6, 8.0.7, and 7.2.12, a malicious user can use scripting commands to inject arbitrary information into the response stream for the given client, potentially corrupting or returning tampered data to other users on the same connection. The error handling code for lua scripts does not properly handle null characters. Versions 9.0.2, 8.1.6, 8.0.7, and 7.2.12 fix the issue.

Frequently asked questions

What is CVE-2025-67733?: Valkey is a distributed key-value database. Prior to versions 9.0.2, 8.1.6, 8.0.7, and 7.2.12, a malicious user can use scripting commands to inject arbitrary information into the response stream for the given client, potentially corrupting or returning tampered data to other users on the same connection. The error handling code for lua scripts does not properly handle null characters. Versions 9.0.2, 8.1.6, 8.0.7, and 7.2.12 fix the issue.
How severe is CVE-2025-67733?: CVE-2025-67733 has a CVSS 3.x base score of 8.5, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity low, and availability high.
Is CVE-2025-67733 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (44th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-67733?: CVE-2025-67733 affects Lfprojects Valkey. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-67733?: 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-2025-67733 have an EU (EUVD) identifier?: Yes. CVE-2025-67733 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-207626.
When was CVE-2025-67733 published?: CVE-2025-67733 was published on 2026-02-23 and last updated on 2026-06-30.

References

Affected products (1)

cpe:2.3:a:lfprojects:valkey:*:*:*:*:*:*:*:*

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