php: bypass __wakeup() in deserialization of an unexpected object
Published Sep 12, 2016
9.8
CRITICALCVSS 3.0
EPSS 16.61%
Description
ext/standard/var_unserializer.c in PHP before 5.6.25 and 7.x before 7.0.10 mishandles certain invalid objects, which allows remote attackers to cause a denial of service or possibly have unspecified other impact via crafted serialized data that leads to a (1) __destruct call or (2) magic method call.
Affected products
No data.
Configuration 1
No data.
Red Hat Software Collections for Red Hat Enterprise Linux 6
rh-php56-0:2.3-1.el6
Fixed · RHSA-2016:2750
Red Hat Software Collections for Red Hat Enterprise Linux 6
rh-php56-php-0:5.6.25-1.el6
Fixed · RHSA-2016:2750
Red Hat Software Collections for Red Hat Enterprise Linux 6
rh-php56-php-pear-1:1.9.5-4.el6
Fixed · RHSA-2016:2750
Red Hat Software Collections for Red Hat Enterprise Linux 6.7 EUS
rh-php56-0:2.3-1.el6
Fixed · RHSA-2016:2750
Red Hat Software Collections for Red Hat Enterprise Linux 6.7 EUS
rh-php56-php-0:5.6.25-1.el6
Fixed · RHSA-2016:2750
Red Hat Software Collections for Red Hat Enterprise Linux 6.7 EUS
rh-php56-php-pear-1:1.9.5-4.el6
Fixed · RHSA-2016:2750
Red Hat Software Collections for Red Hat Enterprise Linux 7
rh-php56-0:2.3-1.el7
Fixed · RHSA-2016:2750
Red Hat Software Collections for Red Hat Enterprise Linux 7
rh-php56-php-0:5.6.25-1.el7
Fixed · RHSA-2016:2750
Red Hat Software Collections for Red Hat Enterprise Linux 7
rh-php56-php-pear-1:1.9.5-4.el7
Fixed · RHSA-2016:2750
Red Hat Software Collections for Red Hat Enterprise Linux 7.2 EUS
rh-php56-0:2.3-1.el7
Fixed · RHSA-2016:2750
Red Hat Software Collections for Red Hat Enterprise Linux 7.2 EUS
rh-php56-php-0:5.6.25-1.el7
Fixed · RHSA-2016:2750
Red Hat Software Collections for Red Hat Enterprise Linux 7.2 EUS
rh-php56-php-pear-1:1.9.5-4.el7
Fixed · RHSA-2016:2750
Red Hat Software Collections for Red Hat Enterprise Linux 7.3 EUS
rh-php56-0:2.3-1.el7
Fixed · RHSA-2016:2750
Red Hat Software Collections for Red Hat Enterprise Linux 7.3 EUS
rh-php56-php-0:5.6.25-1.el7
Fixed · RHSA-2016:2750
Red Hat Software Collections for Red Hat Enterprise Linux 7.3 EUS
rh-php56-php-pear-1:1.9.5-4.el7
Fixed · RHSA-2016:2750
Red Hat Enterprise Linux 5
php
Will not fix
Red Hat Enterprise Linux 5
php53
Will not fix
Red Hat Enterprise Linux 6
php
Will not fix
Red Hat Enterprise Linux 7
php
Will not fix
Red Hat Software Collections
php54-php
Will not fix
Red Hat Software Collections
php55-php
Will not fix
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Software Collections for Red Hat Enterprise Linux 6 | rh-php56-0:2.3-1.el6 | Fixed | RHSA-2016:2750 |
| Red Hat Software Collections for Red Hat Enterprise Linux 6 | rh-php56-php-0:5.6.25-1.el6 | Fixed | RHSA-2016:2750 |
| Red Hat Software Collections for Red Hat Enterprise Linux 6 | rh-php56-php-pear-1:1.9.5-4.el6 | Fixed | RHSA-2016:2750 |
| Red Hat Software Collections for Red Hat Enterprise Linux 6.7 EUS | rh-php56-0:2.3-1.el6 | Fixed | RHSA-2016:2750 |
| Red Hat Software Collections for Red Hat Enterprise Linux 6.7 EUS | rh-php56-php-0:5.6.25-1.el6 | Fixed | RHSA-2016:2750 |
| Red Hat Software Collections for Red Hat Enterprise Linux 6.7 EUS | rh-php56-php-pear-1:1.9.5-4.el6 | Fixed | RHSA-2016:2750 |
| Red Hat Software Collections for Red Hat Enterprise Linux 7 | rh-php56-0:2.3-1.el7 | Fixed | RHSA-2016:2750 |
| Red Hat Software Collections for Red Hat Enterprise Linux 7 | rh-php56-php-0:5.6.25-1.el7 | Fixed | RHSA-2016:2750 |
| Red Hat Software Collections for Red Hat Enterprise Linux 7 | rh-php56-php-pear-1:1.9.5-4.el7 | Fixed | RHSA-2016:2750 |
| Red Hat Software Collections for Red Hat Enterprise Linux 7.2 EUS | rh-php56-0:2.3-1.el7 | Fixed | RHSA-2016:2750 |
| Red Hat Software Collections for Red Hat Enterprise Linux 7.2 EUS | rh-php56-php-0:5.6.25-1.el7 | Fixed | RHSA-2016:2750 |
| Red Hat Software Collections for Red Hat Enterprise Linux 7.2 EUS | rh-php56-php-pear-1:1.9.5-4.el7 | Fixed | RHSA-2016:2750 |
| Red Hat Software Collections for Red Hat Enterprise Linux 7.3 EUS | rh-php56-0:2.3-1.el7 | Fixed | RHSA-2016:2750 |
| Red Hat Software Collections for Red Hat Enterprise Linux 7.3 EUS | rh-php56-php-0:5.6.25-1.el7 | Fixed | RHSA-2016:2750 |
| Red Hat Software Collections for Red Hat Enterprise Linux 7.3 EUS | rh-php56-php-pear-1:1.9.5-4.el7 | Fixed | RHSA-2016:2750 |
| Red Hat Enterprise Linux 5 | php | Will not fix | n/a |
| Red Hat Enterprise Linux 5 | php53 | Will not fix | n/a |
| Red Hat Enterprise Linux 6 | php | Will not fix | n/a |
| Red Hat Enterprise Linux 7 | php | Will not fix | n/a |
| Red Hat Software Collections | php54-php | Will not fix | n/a |
| Red Hat Software Collections | php55-php | Will not fix | n/a |
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
1 other source (Red Hat) ▾
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N
AV:N/AC:L/Au:N/C:P/I:P/A:P
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
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 (30 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 16.61% (0.16612) | 96.93th | v5 (v2026.06.15) |
| Sep 22, 2026 | 16.61% (0.16612) | 96.87th | v5 (v2026.06.15) |
| Sep 21, 2026 | 11.59% (0.11591) | 95.90th | v5 (v2026.06.15) |
| Sep 6, 2026 | 16.61% (0.16612) | 96.80th | v5 (v2026.06.15) |
| Sep 5, 2026 | 11.59% (0.11591) | 95.81th | v5 (v2026.06.15) |
| Aug 30, 2026 | 16.61% (0.16612) | 96.78th | v5 (v2026.06.15) |
| Aug 28, 2026 | 11.59% (0.11591) | 95.79th | v5 (v2026.06.15) |
| Aug 24, 2026 | 16.61% (0.16612) | 96.77th | v5 (v2026.06.15) |
| Aug 23, 2026 | 11.59% (0.11591) | 95.78th | v5 (v2026.06.15) |
| Jun 15, 2026 | 16.61% (0.16612) | 96.60th | v5 (v2026.06.15) |
| Jan 16, 2026 | 74.66% (0.74663) | 98.81th | v4 (v2025.03.14) |
| Dec 22, 2025 | 73.39% (0.73386) | 98.74th | v4 (v2025.03.14) |
| Aug 28, 2025 | 75.03% (0.75035) | 98.83th | v4 (v2025.03.14) |
| Aug 23, 2025 | 76.70% (0.76696) | 98.91th | v4 (v2025.03.14) |
| Aug 19, 2025 | 74.68% (0.74679) | 98.81th | v4 (v2025.03.14) |
| Aug 16, 2025 | 75.89% (0.75890) | 98.86th | v4 (v2025.03.14) |
| Jun 22, 2025 | 77.26% (0.77262) | 98.91th | v4 (v2025.03.14) |
| Mar 30, 2025 | 78.49% (0.78487) | 98.98th | v4 (v2025.03.14) |
| Mar 29, 2025 | 83.98% (0.83982) | 99.12th | v4 (v2025.03.14) |
| Mar 26, 2025 | 78.49% (0.78487) | 98.99th | v4 (v2025.03.14) |
| Mar 25, 2025 | 83.98% (0.83982) | 99.27th | v4 (v2025.03.14) |
| Mar 17, 2025 | 78.49% (0.78487) | 98.98th | v4 (v2025.03.14) |
| Dec 12, 2024 | 2.77% (0.02767) | 90.96th | v3 (v2023.03.01) |
| Dec 13, 2023 | 2.77% (0.02767) | 89.48th | v3 (v2023.03.01) |
| Aug 15, 2023 | 1.97% (0.01970) | 87.25th | v3 (v2023.03.01) |
| Jul 3, 2023 | 1.85% (0.01852) | 86.70th | v3 (v2023.03.01) |
| Mar 7, 2023 | 1.66% (0.01657) | 85.62th | v3 (v2023.03.01) |
| Mar 6, 2023 | 2.17% (0.02172) | 80.77th | v2 (v2022.01.01) |
| Apr 1, 2022 | 2.17% (0.02172) | 78.91th | v2 (v2022.01.01) |
| Feb 4, 2022 | 2.17% (0.02172) | 57.73th | v2 (v2022.01.01) |
References (14)
- http://openwall.com/lists/oss-security/2016/09/02/9 mailing-listx_refsource_MLISTMailing List
- http://rhn.redhat.com/errata/RHSA-2016-2750.html vendor-advisoryx_refsource_REDHAT
- http://www.php.net/ChangeLog-5.php x_refsource_CONFIRMRelease Notes
- http://www.php.net/ChangeLog-7.php x_refsource_CONFIRMRelease Notes
- http://www.securityfocus.com/bid/92756 vdb-entryx_refsource_BID
- http://www.securitytracker.com/id/1036680 vdb-entryx_refsource_SECTRACK
- https://access.redhat.com/security/cve/CVE-2016-7124 Vendor Advisory
- https://bugs.php.net/bug.php?id=72663 x_refsource_CONFIRMExploitIssue Tracking
- https://bugzilla.redhat.com/show_bug.cgi?id=1374697 Issue Tracking
- https://github.com/php/php-src/commit/20ce2fe8e3c211a42fee05a461a5881be9a8790e?w=1 x_refsource_CONFIRMIssue TrackingPatch
- https://nvd.nist.gov/vuln/detail/CVE-2016-7124
- https://security.gentoo.org/glsa/201611-22 vendor-advisoryx_refsource_GENTOO
- https://www.cve.org/CVERecord?id=CVE-2016-7124
- https://www.tenable.com/security/tns-2016-19 x_refsource_CONFIRM
Change history (0)
No recorded changes yet.