Vulnerability Intelligence Report
Buffer overflow and overread in phar_dir_read()
CVE-2023-3824
In PHP version 8.0.* before 8.0.30, 8.1.* before 8.1.22, and 8.2.* before 8.2.8, when loading phar file, while reading PHAR directory entries, insufficient length checking may lead to a stack buffer overflow, leading potentially to memory corruption or RCE.
No Active Exploit Signals
CVSS Base Score
9.4
CRITICAL
Exploitability:3.9
Impact Score:5.5
EPSS Probability:8.00%
Executive Threat Verdict
Evaluating...
Evaluating Threat Landscape...
Assessing known weaponization, exploitation telemetry, and federal advisories.
Attack Surface
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Authentication
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Weaponization
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SSVC Action
—
Weaknesses (CWE)
CWE-119 ↗CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer
Affected Products & Versions
| Vendor | Product | Affected Versions |
|---|---|---|
| PHP Group | PHP | 8.0.* < 8.0.30 (affected), 8.1.* < 8.1.22 (affected), 8.2.* < 8.2.8 (affected) |
Threat Intelligence Signals
EPSS Score
8.003%
Identity & Timeline
| Status | PUBLISHED |
| Assigning Authority | PHP Group · Vendor · USA |
| Reserved | 2023-07-21T16:57:23 |
| Published | 2023-08-11T05:48:34 |
| Last Updated | 2025-02-13T17:01:48 |
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