CRITICAL
A type confusion vulnerability in the merge_param() function of php_http_params.c in PHP's pecl-http extension 3.1.0beta2 (PHP 7) and earlier as well as 2.6.0beta2 (PHP 5) and earlier allows attackers to crash PHP and possibly execute arbitrary code via crafted HTTP requests
Published Sep 6, 2019
9.8
CRITICALCVSS 3.1
EPSS 6.80%
Description
A type confusion vulnerability in the merge_param() function of php_http_params.c in PHP's pecl-http extension 3.1.0beta2 (PHP 7) and earlier as well as 2.6.0beta2 (PHP 5) and earlier allows attackers to crash PHP and possibly execute arbitrary code via crafted HTTP requests.
Affected products
No data.
OR
- ≤ 2.5.6
- ≥ 3.0.0 · ≤ 3.0.1
- 2.6.0
- 2.6.0
- 2.6.0
- 2.6.0
- 3.1.0
- 3.1.0
- 3.1.0
- 3.1.0
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
9.8 CRITICAL NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality Impact High
Integrity Impact High
Availability Impact High
No CVSS v3.0 score for this CVE.
7.5 HIGH NVD
AV:N/AC:L/Au:N/C:P/I:P/A:P
Access Vector Network
Access Complexity Low
Authentication None
Confidentiality Impact Partial
Integrity Impact Partial
Availability Impact Partial
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
6.80% 0.06797
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
EPSS probability 0.06797
Score over time
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (41 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 6.80% (0.06797) | 93.80th | v5 (v2026.06.15) |
| Jun 15, 2026 | 6.80% (0.06797) | 93.15th | v5 (v2026.06.15) |
| Mar 4, 2026 | 5.72% (0.05723) | 90.27th | v4 (v2025.03.14) |
| Mar 1, 2026 | 3.20% (0.03200) | 86.82th | v4 (v2025.03.14) |
| Feb 4, 2026 | 5.72% (0.05723) | 90.21th | v4 (v2025.03.14) |
| Feb 1, 2026 | 3.20% (0.03200) | 86.72th | v4 (v2025.03.14) |
| Jan 4, 2026 | 5.72% (0.05723) | 90.15th | v4 (v2025.03.14) |
| Jan 1, 2026 | 3.20% (0.03200) | 86.67th | v4 (v2025.03.14) |
| Dec 4, 2025 | 5.72% (0.05723) | 90.08th | v4 (v2025.03.14) |
| Dec 1, 2025 | 3.20% (0.03200) | 86.62th | v4 (v2025.03.14) |
| Nov 4, 2025 | 5.72% (0.05723) | 90.02th | v4 (v2025.03.14) |
| Nov 1, 2025 | 3.20% (0.03200) | 86.54th | v4 (v2025.03.14) |
| Oct 4, 2025 | 5.72% (0.05723) | 90.05th | v4 (v2025.03.14) |
| Oct 1, 2025 | 3.20% (0.03200) | 86.56th | v4 (v2025.03.14) |
| Sep 4, 2025 | 5.72% (0.05723) | 90.11th | v4 (v2025.03.14) |
| Sep 1, 2025 | 3.20% (0.03200) | 86.58th | v4 (v2025.03.14) |
| Aug 4, 2025 | 5.72% (0.05723) | 90.09th | v4 (v2025.03.14) |
| Aug 1, 2025 | 3.20% (0.03200) | 86.61th | v4 (v2025.03.14) |
| Jul 4, 2025 | 5.72% (0.05723) | 90.02th | v4 (v2025.03.14) |
| Jul 1, 2025 | 3.20% (0.03200) | 86.53th | v4 (v2025.03.14) |
| Jun 5, 2025 | 5.72% (0.05723) | 89.96th | v4 (v2025.03.14) |
| Jun 1, 2025 | 3.20% (0.03200) | 86.45th | v4 (v2025.03.14) |
| May 4, 2025 | 5.72% (0.05723) | 89.91th | v4 (v2025.03.14) |
| May 1, 2025 | 3.20% (0.03200) | 86.34th | v4 (v2025.03.14) |
| Apr 12, 2025 | 5.72% (0.05723) | 89.57th | v4 (v2025.03.14) |
| Apr 11, 2025 | 3.20% (0.03200) | 85.93th | v4 (v2025.03.14) |
| Apr 2, 2025 | 5.72% (0.05723) | 89.54th | v4 (v2025.03.14) |
| Apr 1, 2025 | 3.20% (0.03200) | 85.87th | v4 (v2025.03.14) |
| Mar 30, 2025 | 5.72% (0.05723) | 89.50th | v4 (v2025.03.14) |
| Mar 29, 2025 | 14.29% (0.14285) | 90.68th | v4 (v2025.03.14) |
| Mar 24, 2025 | 5.72% (0.05723) | 89.52th | v4 (v2025.03.14) |
| Mar 23, 2025 | 3.20% (0.03200) | 84.59th | v4 (v2025.03.14) |
| Mar 19, 2025 | 5.72% (0.05723) | 89.25th | v4 (v2025.03.14) |
| Mar 18, 2025 | 4.57% (0.04566) | 88.51th | v4 (v2025.03.14) |
| Mar 17, 2025 | 3.23% (0.03235) | 86.24th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.33% (0.00333) | 72.03th | v3 (v2023.03.01) |
| Feb 8, 2024 | 0.29% (0.00285) | 67.86th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.29% (0.00285) | 63.77th | v3 (v2023.03.01) |
| Mar 6, 2023 | 2.51% (0.02509) | 81.86th | v2 (v2022.01.01) |
| Apr 1, 2022 | 2.51% (0.02509) | 80.08th | v2 (v2022.01.01) |
| Feb 4, 2022 | 2.51% (0.02509) | 58.60th | v2 (v2022.01.01) |
Weaknesses (1)
References (4)
- https://bugs.php.net/bug.php?id=73055 x_refsource_MISCExploitMailing ListVendor Advisory
- https://bugs.php.net/bug.php?id=73055&edit=1 x_refsource_MISCExploitVendor Advisory
- https://github.com/m6w6/ext-http/commit/17137d4ab1ce81a2cee0fae842340a344ef3da83 x_refsource_MISCPatchThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2019/09/msg00022.html mailing-listx_refsource_MLIST
| Link | Providers | Tags |
|---|---|---|
| https://bugs.php.net/bug.php?id=73055 | x_refsource_MISCExploitMailing ListVendor Advisory | |
| https://bugs.php.net/bug.php?id=73055&edit=1 | x_refsource_MISCExploitVendor Advisory | |
| https://github.com/m6w6/ext-http/commit/17137d4ab1ce81a2cee0fae842340a344ef3da83 | x_refsource_MISCPatchThird Party Advisory | |
| https://lists.debian.org/debian-lts-announce/2019/09/msg00022.html | mailing-listx_refsource_MLIST |
Change history (0)
No recorded changes yet.
Sources
CVE.org / MITRE
Status PUBLISHED
Assigner mitre
Published Sep 6, 2019
Updated Aug 6, 2024
Reserved Sep 9, 2016
Link CVE-2016-7398
CISA Vulnrichment
Updated n/a