Vulnerability Details CVE-2026-17544
Attacker-provided inputs to bccomp() could lead to an out-of-bounds write with stack and heap corruption in PHP versions from 8.4.* before 8.4.24 and from 8.5.* before 8.5.9.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.005
EPSS Ranking 42.2%
CVSS Severity
CVSS v3 Score 9.8
Products affected by CVE-2026-17544
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cpe:2.3:a:php:php:8.4.0
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cpe:2.3:a:php:php:8.4.1
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cpe:2.3:a:php:php:8.4.10
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cpe:2.3:a:php:php:8.4.11
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cpe:2.3:a:php:php:8.4.12
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cpe:2.3:a:php:php:8.4.13
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cpe:2.3:a:php:php:8.4.14
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cpe:2.3:a:php:php:8.4.15
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cpe:2.3:a:php:php:8.4.16
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cpe:2.3:a:php:php:8.4.17
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cpe:2.3:a:php:php:8.4.18
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cpe:2.3:a:php:php:8.4.19
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cpe:2.3:a:php:php:8.4.2
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cpe:2.3:a:php:php:8.4.20
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cpe:2.3:a:php:php:8.4.21
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cpe:2.3:a:php:php:8.4.23
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cpe:2.3:a:php:php:8.4.3
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cpe:2.3:a:php:php:8.4.4
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cpe:2.3:a:php:php:8.4.5
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cpe:2.3:a:php:php:8.4.6
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cpe:2.3:a:php:php:8.4.7
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cpe:2.3:a:php:php:8.4.8
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cpe:2.3:a:php:php:8.4.9
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cpe:2.3:a:php:php:8.5.0
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cpe:2.3:a:php:php:8.5.1
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cpe:2.3:a:php:php:8.5.2
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cpe:2.3:a:php:php:8.5.3
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cpe:2.3:a:php:php:8.5.4
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cpe:2.3:a:php:php:8.5.5
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cpe:2.3:a:php:php:8.5.6
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cpe:2.3:a:php:php:8.5.7
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cpe:2.3:a:php:php:8.5.8