CVE-2016-7124

CRITICALNVD 9.89.8—
EchelonGraph scoreMEDIUM confidence

Score 9.8 from GitHub Security Advisory (severity: CRITICAL) published 2022-05-14. NVD baseline CVSS 9.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Elevated
9.8
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 16%CVSS: 9.8Exploit: NoneExposed: 0

A fix is available — apply it.

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.

CVSS v3
9.8
EG Score
9.8(medium)
EG Risk
65(Track*)
EG Risk 65/100SSVC: Track*

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity98% × 45%
Exploitation40% × 40%
Automatability30% × 15%
Action: Watch closely — could escalate to Attend.
EPSS
96.7%
KEV
Not listed

Published

September 12, 2016

Last Modified

May 6, 2026

Advisory Details (9)

Auto-updated May 8, 2026
No patch confirmed yet.
generic

[R6] SecurityCenter 5.4.1 Fixes Multiple Vulnerabilities - Security Advisory | Tenable®

https://www.tenable.com/security/tns-2016-19
generic

PHP: Multiple vulnerabilities (GLSA 201611-22) — Gentoo security

https://security.gentoo.org/glsa/201611-22
generic

Fix bug #72663 - destroy broken object when unserializing · php/php-src@20ce2fe · GitHub

https://github.com/php/php-src/commit/20ce2fe8e3c211a42fee05a461a5881be9a8790e?w=1
generic

PHP :: Sec Bug #72663 :: Create an Unexpected Object and Don't Invoke __wakeup() in Deserialization

https://bugs.php.net/bug.php?id=72663
generic
http://www.securityfocus.com/bid/92756
generic

PHP: PHP 7 ChangeLog

http://www.php.net/ChangeLog-7.php
generic

PHP: PHP 5 ChangeLog

http://www.php.net/ChangeLog-5.php
generic
http://rhn.redhat.com/errata/RHSA-2016-2750.html
generic

oss-security - Re: CVE assignment for PHP 5.6.25 and 7.0.10 - and libcurl

http://openwall.com/lists/oss-security/2016/09/02/9

Vendor Advisories for CVE-2016-7124(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Patch Availability(2)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntuphp7.0-zip (7.0.8-0ubuntu0.16.04.3) @ xenial2026-05-20ubuntu
redhatrh-php56-php-pear-1:1.9.5-4.el72016-11-15redhat

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Additional Vendor Advisories

(1)

Vendors that published advisories for this CVE beyond the curated set above. Broader coverage but minimal per-row detail — click through for the original advisory.

Data Freshness Timeline

(refreshed 14× in last 7d / 39× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

  1. 2026-07-23 01:24 UTCEG score recompute
  2. 2026-07-22 22:03 UTCEG score recompute
  3. 2026-07-22 14:04 UTCEPSS rescore
  4. 2026-07-21 15:21 UTCEPSS rescore
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  6. 2026-07-20 17:04 UTCEPSS rescore
  7. 2026-07-19 14:28 UTCEPSS rescore
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  13. 2026-07-16 16:59 UTCEPSS rescore
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  20. 2026-07-12 05:43 UTCEPSS rescore
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  22. 2026-07-11 08:24 UTCEPSS rescore
  23. 2026-07-09 19:06 UTCEPSS rescore
  24. 2026-07-08 15:10 UTCEPSS rescore
  25. 2026-07-08 14:45 UTCOSV refresh
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  1. 2026-07-07 13:42 UTCEPSS rescore
  2. 2026-07-06 16:24 UTCEPSS rescore
  3. 2026-07-06 16:24 UTCEPSS rescore
  4. 2026-07-05 02:27 UTCEPSS rescore
  5. 2026-07-01 15:02 UTCEPSS rescore
  6. 2026-06-30 23:19 UTCEPSS rescore
  7. 2026-06-30 23:19 UTCEPSS rescore
  8. 2026-06-29 14:03 UTCEPSS rescore
  9. 2026-06-28 14:04 UTCEPSS rescore
  10. 2026-06-28 04:53 UTCEPSS rescore
  11. 2026-06-27 03:05 UTCEPSS rescore
  12. 2026-06-25 13:47 UTCEPSS rescore
  13. 2026-06-24 14:02 UTCEPSS rescore
  14. 2026-06-23 21:30 UTCEPSS rescore
  15. 2026-06-21 14:54 UTCEPSS rescore
  16. 2026-06-21 14:54 UTCEPSS rescore
  17. 2026-06-21 01:57 UTCEPSS rescore
  18. 2026-06-21 01:57 UTCEPSS rescore
  19. 2026-06-20 02:42 UTCOSV refresh
  20. 2026-06-18 17:50 UTCEPSS rescore
  21. 2026-06-18 17:50 UTCEPSS rescore
  22. 2026-06-17 17:50 UTCEPSS rescore
  23. 2026-06-17 17:50 UTCEPSS rescore
  24. 2026-06-16 17:50 UTCEPSS rescore
  25. 2026-06-15 17:45 UTCEPSS rescore
  26. 2026-06-14 23:14 UTCEPSS rescore
  27. 2026-06-14 23:14 UTCEPSS rescore
  28. 2026-06-13 22:57 UTCEPSS rescore
  29. 2026-06-13 22:57 UTCEPSS rescore
  30. 2026-06-12 23:09 UTCEPSS rescore
  31. 2026-06-11 13:57 UTCEPSS rescore
  32. 2026-06-08 14:14 UTCEPSS rescore
  33. 2026-06-07 15:22 UTCEPSS rescore
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  35. 2026-06-06 13:45 UTCEPSS rescore
  36. 2026-06-06 13:45 UTCEPSS rescore
  37. 2026-06-05 22:44 UTCEPSS rescore
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  40. 2026-06-04 13:10 UTCEPSS rescore
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  42. 2026-06-02 20:10 UTCEPSS rescore
  43. 2026-06-01 13:49 UTCEPSS rescore
  44. 2026-06-01 13:49 UTCEPSS rescore
  45. 2026-05-31 03:55 UTCOSV refresh
  46. 2026-05-31 00:14 UTCEPSS rescore
  47. 2026-05-29 13:41 UTCEPSS rescore
  48. 2026-05-28 13:42 UTCEPSS rescore
  49. 2026-05-28 13:42 UTCEPSS rescore
  50. 2026-05-24 16:44 UTCEPSS rescore
  51. 2026-05-20 10:59 UTCVendor advisory
  52. 2026-05-20 10:59 UTCGHSA enrichment
  53. 2026-05-20 07:17 UTCVendor advisory
  54. 2026-05-20 07:17 UTCGHSA enrichment
  55. 2026-05-20 03:36 UTCVendor advisory
  56. 2026-05-20 03:36 UTCGHSA enrichment
  57. 2026-05-19 23:55 UTCVendor advisory
  58. 2026-05-19 23:55 UTCGHSA enrichment
  59. 2026-05-19 20:14 UTCVendor advisory
  60. 2026-05-19 20:14 UTCGHSA enrichment
  61. 2026-05-19 16:28 UTCVendor advisory
  62. 2026-05-19 16:28 UTCGHSA enrichment
  63. 2026-05-19 12:08 UTCVendor advisory
  64. 2026-05-19 12:08 UTCGHSA enrichment
  65. 2026-05-19 08:02 UTCVendor advisory
  66. 2026-05-19 08:01 UTCGHSA enrichment
  67. 2026-05-19 04:19 UTCVendor advisory
  68. 2026-05-19 04:19 UTCGHSA enrichment
  69. 2026-05-19 00:34 UTCEG score recompute
  70. 2026-05-19 00:34 UTCVendor advisory
  71. 2026-05-19 00:34 UTCGHSA enrichment
  72. 2026-05-18 21:30 UTCEPSS rescore
  73. 2026-05-18 21:30 UTCEPSS rescore
  74. 2026-05-18 21:30 UTCEPSS rescore

Frequently asked(5)

What is CVE-2016-7124?
CVE-2016-7124 is a critical vulnerability published on September 12, 2016. ext/standard/varunserializer.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.
When was CVE-2016-7124 disclosed?
CVE-2016-7124 was first published in the National Vulnerability Database on September 12, 2016, with the most recent update on May 6, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2016-7124 actively exploited?
CVE-2016-7124 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 96.7% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2016-7124?
CVE-2016-7124 has a CVSS v3 base score of 9.8 (NVD).
How do I remediate CVE-2016-7124?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2016-7124, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

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