ext/wddx/wddx.c in PHP before 5.6.28 and 7.x before 7.0.13 allows remote attackers to…
Priority MEDIUM 43CWE-476Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- Partial Red Hat: 8 fixed, 5 without a fix
Attack profile from CVSS 3.0 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-476.
Summary
ext/wddx/wddx.c in PHP before 5.6.28 and 7.x before 7.0.13 allows remote attackers to cause a denial of service (NULL pointer dereference) via crafted serialized data in a wddxPacket XML document, as demonstrated by a PDORow string.
Why it matters now
EPSS 0.06789 94th percentileScored 2026-11-07
Fix Partial Red Hat: 1 advisoryRed Hat: 8 fixed, 5 without a fix
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 14
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:php:php:*:*:*:*:*:*:*:* | up to 5.6.27 | Vulnerable | PHP |
| cpe:2.3:a:php:php:7.0.0:*:*:*:*:*:*:* | 7.0.0 | Vulnerable | PHP |
| cpe:2.3:a:php:php:7.0.1:*:*:*:*:*:*:* | 7.0.1 | Vulnerable | PHP |
| cpe:2.3:a:php:php:7.0.2:*:*:*:*:*:*:* | 7.0.2 | Vulnerable | PHP |
| cpe:2.3:a:php:php:7.0.3:*:*:*:*:*:*:* | 7.0.3 | Vulnerable | PHP |
| cpe:2.3:a:php:php:7.0.4:*:*:*:*:*:*:* | 7.0.4 | Vulnerable | PHP |
| cpe:2.3:a:php:php:7.0.5:*:*:*:*:*:*:* | 7.0.5 | Vulnerable | PHP |
| cpe:2.3:a:php:php:7.0.6:*:*:*:*:*:*:* | 7.0.6 | Vulnerable | PHP |
| cpe:2.3:a:php:php:7.0.7:*:*:*:*:*:*:* | 7.0.7 | Vulnerable | PHP |
| cpe:2.3:a:php:php:7.0.8:*:*:*:*:*:*:* | 7.0.8 | Vulnerable | PHP |
- cpe:2.3:a:php:php:*:*:*:*:*:*:*:* Versions up to 5.6.27 Vulnerable ·PHP
- cpe:2.3:a:php:php:7.0.0:*:*:*:*:*:*:* Versions 7.0.0 Vulnerable ·PHP
- cpe:2.3:a:php:php:7.0.1:*:*:*:*:*:*:* Versions 7.0.1 Vulnerable ·PHP
- cpe:2.3:a:php:php:7.0.2:*:*:*:*:*:*:* Versions 7.0.2 Vulnerable ·PHP
- cpe:2.3:a:php:php:7.0.3:*:*:*:*:*:*:* Versions 7.0.3 Vulnerable ·PHP
- cpe:2.3:a:php:php:7.0.4:*:*:*:*:*:*:* Versions 7.0.4 Vulnerable ·PHP
- cpe:2.3:a:php:php:7.0.5:*:*:*:*:*:*:* Versions 7.0.5 Vulnerable ·PHP
- cpe:2.3:a:php:php:7.0.6:*:*:*:*:*:*:* Versions 7.0.6 Vulnerable ·PHP
- cpe:2.3:a:php:php:7.0.7:*:*:*:*:*:*:* Versions 7.0.7 Vulnerable ·PHP
- cpe:2.3:a:php:php:7.0.8:*:*:*:*:*:*:* Versions 7.0.8 Vulnerable ·PHP
Remediation
Red Hat 1 advisory
- RHSA-2018:1296 Released 2018-05-03 · Red Hat rating Moderaterh-php70-php security, bug fix, and enhancement update
- Red Hat Software Collections for Red Hat Enterprise Linux Server (v. 6) rh-php70-php-7.0.27-1.el6, rh-php70-php-bcmath-7.0.27-1.el6, rh-php70-php-cli-7.0.27-1.el6 +28
- Red Hat Software Collections for Red Hat Enterprise Linux Server (v. 7) rh-php70-php-7.0.27-1.el7, rh-php70-php-bcmath-7.0.27-1.el7, rh-php70-php-cli-7.0.27-1.el7 +26
- Red Hat Software Collections for Red Hat Enterprise Linux Server EUS (v. 6.7) rh-php70-php-7.0.27-1.el6, rh-php70-php-bcmath-7.0.27-1.el6, rh-php70-php-cli-7.0.27-1.el6 +28
- Red Hat Software Collections for Red Hat Enterprise Linux Server EUS (v. 7.3) rh-php70-php-7.0.27-1.el7, rh-php70-php-bcmath-7.0.27-1.el7, rh-php70-php-cli-7.0.27-1.el7 +26
- Red Hat Software Collections for Red Hat Enterprise Linux Server EUS (v. 7.4) rh-php70-php-7.0.27-1.el7, rh-php70-php-bcmath-7.0.27-1.el7, rh-php70-php-cli-7.0.27-1.el7 +26
- Red Hat Software Collections for Red Hat Enterprise Linux Server EUS (v. 7.5) rh-php70-php-7.0.27-1.el7, rh-php70-php-bcmath-7.0.27-1.el7, rh-php70-php-cli-7.0.27-1.el7 +26
- Red Hat Software Collections for Red Hat Enterprise Linux Workstation (v. 6) rh-php70-php-7.0.27-1.el6, rh-php70-php-bcmath-7.0.27-1.el6, rh-php70-php-cli-7.0.27-1.el6 +28
- Red Hat Software Collections for Red Hat Enterprise Linux Workstation (v. 7) rh-php70-php-7.0.27-1.el7, rh-php70-php-bcmath-7.0.27-1.el7, rh-php70-php-cli-7.0.27-1.el7 +26
Vendor assessments
Red Hat
Red Hat rating: Low. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux 5 | Affected | No fix planned: Will not fix |
| Red Hat Enterprise Linux 6 | Affected | No fix planned: Will not fix |
| Red Hat Enterprise Linux 7 | Affected | No fix planned: Will not fix |
| Red Hat OpenShift Enterprise 2 | Affected | No fix planned: Will not fix |
| Red Hat Software Collections | Affected | No fix planned: Will not fix |
| Red Hat Software Collections for Red Hat Enterprise Linux Server (v. 6) | Fixed | RHSA-2018:1296 |
| Red Hat Software Collections for Red Hat Enterprise Linux Server (v. 7) | Fixed | RHSA-2018:1296 |
| Red Hat Software Collections for Red Hat Enterprise Linux Server EUS (v. 6.7) | Fixed | RHSA-2018:1296 |
| Red Hat Software Collections for Red Hat Enterprise Linux Server EUS (v. 7.3) | Fixed | RHSA-2018:1296 |
| Red Hat Software Collections for Red Hat Enterprise Linux Server EUS (v. 7.4) | Fixed | RHSA-2018:1296 |
| Red Hat Software Collections for Red Hat Enterprise Linux Server EUS (v. 7.5) | Fixed | RHSA-2018:1296 |
| Red Hat Software Collections for Red Hat Enterprise Linux Workstation (v. 6) | Fixed | RHSA-2018:1296 |
| Red Hat Software Collections for Red Hat Enterprise Linux Workstation (v. 7) | Fixed | RHSA-2018:1296 |
Timeline
- 2026-10-02 Threatist record created from CVE-2016-9934
- 2026-10-03 Alias added: GHSA-9r3m-57qh-73fc
References
Advisory 9
- [oss-security] 20161212 CVE assignment for PHP 5.6.28, 5.6.29, 7.0.13, 7.0.14 and 7.1.0
- openSUSE-SU-2017:0081
- http://www.php.net/ChangeLog-7.php
- RHSA-2018:1296
- http://www.php.net/ChangeLog-5.php
- openSUSE-SU-2017:0061
- openSUSE-SU-2016:3239
- https://github.com/php/php-src/commit/6045de69c7dedcba3eadf7c4bba424b19c81d00d
- https://bugs.php.net/bug.php?id=73331
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- TI-2019-08259 Underflow in PHP-FPM can lead to RCE KEVCVSS 3.1CRITICAL 9.8
- TI-2012-01607 sapi/cgi/cgi_main.c in PHP before 5.3.12 and 5.4.x before 5.4.2, when configured as a CGI… KEVCVSS 3.1CRITICAL 9.8
- TI-2026-78794 PHP remote code execution via stale global state KEVCVSS 4.0CRITICAL 9.2
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- TI-2015-00205 Heap-based buffer overflow in the __nss_hostname_digits_dots function in glibc 2.2, and… CVSS 2.0HIGH 10.0
Sources
- CVE-2016-9934 · CVE Program
- CVE-2016-9934 · NVD
- FIRST EPSS
- GHSA-9r3m-57qh-73fc · GitHub Advisory Database · CC BY 4.0
- CVE-2016-9934 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences