CVE-2015-6835
Last modified
CVE-2015-6835 is a vulnerability of currently unknown severity. The session deserializer in PHP before 5.4.45, 5.5.x before 5.5.29, and 5.6.x before 5.6.13 mishandles multiple php_var_unserialize calls, which allow remote attackers to execute arbitrary code or cause a denial of service (use-after-free) via crafted session content.. EPSS estimates a 36.99% chance of exploitation in the next 30 days.
Description
The session deserializer in PHP before 5.4.45, 5.5.x before 5.5.29, and 5.6.x before 5.6.13 mishandles multiple php_var_unserialize calls, which allow remote attackers to execute arbitrary code or cause a denial of service (use-after-free) via crafted session content.
Metrics
Affected Software
| Vendor | Product | Versions | Update |
|---|---|---|---|
| Php | Php | 5.6.0 | Alpha1 |
| Php | Php | 5.6.1 | — |
| Php | Php | 5.6.2 | — |
| Php | Php | 5.6.3 | — |
| Php | Php | 5.6.4 | — |
| Php | Php | 5.6.5 | — |
| Php | Php | 5.6.6 | — |
| Php | Php | 5.6.7 | — |
| Php | Php | 5.6.8 | — |
| Php | Php | 5.6.9 | — |
| Php | Php | 5.6.10 | — |
| Php | Php | 5.6.11 | — |
| Php | Php | 5.6.12 | — |
| Php | Php | <= 5.4.44 | — |
| Php | Php | 5.5.0 | — |
| Php | Php | 5.5.1 | — |
| Php | Php | 5.5.2 | — |
| Php | Php | 5.5.3 | — |
| Php | Php | 5.5.4 | — |
| Php | Php | 5.5.5 | — |
| Php | Php | 5.5.6 | — |
| Php | Php | 5.5.7 | — |
| Php | Php | 5.5.8 | — |
| Php | Php | 5.5.9 | — |
| Php | Php | 5.5.10 | — |
| Php | Php | 5.5.11 | — |
| Php | Php | 5.5.12 | — |
| Php | Php | 5.5.13 | — |
| Php | Php | 5.5.14 | — |
| Php | Php | 5.5.15 | — |
| Php | Php | 5.5.16 | — |
| Php | Php | 5.5.17 | — |
| Php | Php | 5.5.18 | — |
| Php | Php | 5.5.19 | — |
| Php | Php | 5.5.20 | — |
| Php | Php | 5.5.21 | — |
| Php | Php | 5.5.22 | — |
| Php | Php | 5.5.23 | — |
| Php | Php | 5.5.24 | — |
| Php | Php | 5.5.25 | — |
| Php | Php | 5.5.26 | — |
| Php | Php | 5.5.27 | — |
| Php | Php | 5.5.28 | — |
References
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
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How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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