What is the CVSS score of CVE-2025-63889?

CVE-2025-63889 has a CVSS 3.1 base score of 7.5 (High). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N. EPSS exploitation probability: 0.1%.

Which versions of PHP are affected by CVE-2025-63889?

CVE-2025-63889 presents notable security risk, a out-of-bounds read vulnerability rated CVSS 7.5. Exploitation could compromise the security of affected deployments.

How to fix or mitigate CVE-2025-63889?

Within 30 days: Identify all affected systems and apply vendor patches as part of regular patch cycle. Monitor vendor channels for patch availability.

PHP CVE-2025-63889

HIGH

Out-of-bounds Read (CWE-125)

2025-11-20 cve@mitre.org

PHP Buffer Overflow Information Disclosure Thinkphp

7.5

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

7.5 HIGH

AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

None

Availability

None

Lifecycle Timeline

Analysis Generated

Mar 28, 2026 - 19:23 vuln.today

CVE Published

Nov 20, 2025 - 18:15 nvd

HIGH 7.5

DescriptionCVE.org

The fetch function in file thinkphp\library\think\Template.php in ThinkPHP 5.0.24 allows attackers to read arbitrary files via crafted file path in a template value.

AnalysisAI

The fetch function in file thinkphp\library\think\Template.php in ThinkPHP 5.0.24 allows attackers to read arbitrary files via crafted file path in a template value. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

Technical ContextAI

This vulnerability is classified as Out-of-bounds Read (CWE-125), which allows attackers to read data from memory outside the intended buffer boundaries. The fetch function in file thinkphp\library\think\Template.php in ThinkPHP 5.0.24 allows attackers to read arbitrary files via crafted file path in a template value. Affected products include: Thinkphp.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Validate array indices and buffer lengths. Use memory-safe languages. Enable AddressSanitizer during testing.

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CVE-2025-63889 vulnerability details – vuln.today

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PHP CVE-2025-63889

Severity by source

CVSS VectorNVD

Lifecycle Timeline

DescriptionCVE.org

AnalysisAI

Technical ContextAI

RemediationAI

More from same product – last 7 days

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External POC / Exploit Code