CVE-2017-12932

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
9.8
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 7%CVSS: 9.8Exploit: NoneExposed: 0

A fix is available — apply it.

ext/standard/var_unserializer.re in PHP 7.0.x through 7.0.22 and 7.1.x through 7.1.8 is prone to a heap use after free while unserializing untrusted data, related to improper use of the hash API for key deletion in a situation with an invalid array size. Exploitation of this issue can have an unspecified impact on the integrity of PHP.

CVSS v3
9.8
EG Score
9.8(medium)
EPSS
93.7%
KEV
Not listed

Published

August 18, 2017

Last Modified

May 13, 2026

Advisory Details (9)

Auto-updated Jun 21, 2026
Patch available. Sources: redhat, github_commit.
generic

PHP: PHP 7 ChangeLog

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

[SECURITY] [DSA 4080-1] php7.0 security update

https://www.debian.org/security/2018/dsa-4080
generic

PHP: Multiple vulnerabilities (GLSA 201709-21) — Gentoo security

https://security.gentoo.org/glsa/201709-21
github_commit Patch Available

commit 1a23ebc1fff5 (php/php-src)

Patch available: php/php-src php-8.4.11 (contains commit 1a23ebc1fff5)

https://github.com/php/php-src/commit/1a23ebc1fff59bf480ca92963b36eba5c1b904c4
generic

PHP :: Sec Bug #74103 :: heap-use-after-free when unserializing invalid array size

https://bugs.php.net/bug.php?id=74103
redhat Patch Available
https://access.redhat.com/errata/RHSA-2019:2519
redhat Patch Available
https://access.redhat.com/errata/RHSA-2018:1296
generic
http://www.securityfocus.com/bid/100427
generic

NetApp Product Security

https://security.netapp.com/advisory/ntap-20180112-0001/

Patch Availability(2)

Vendor / EcosystemFixed in / PatchReleasedSource
redhatrh-php71-php-0:7.1.30-1.el72019-08-19redhat
redhatrh-php70-php-0:7.0.27-1.el72018-05-03redhat

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.

All Vendor Advisories

(2)

Every vendor that published an advisory referencing this CVE — pulled from our cve_vendor_advisories aggregation. Click any row for the vendor's original advisory page.

Data Freshness Timeline

(refreshed 9× in last 7d / 35× 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. 2026-07-07 13:42 UTCEPSS rescore
  2. 2026-07-06 16:24 UTCEPSS rescore
  3. 2026-07-06 02:20 UTCEPSS rescore
  4. 2026-07-05 02:27 UTCEPSS rescore
  5. 2026-07-04 06:28 UTCEPSS rescore
  6. 2026-07-01 15:02 UTCEPSS rescore
  7. 2026-07-01 15:02 UTCEPSS rescore
  8. 2026-06-30 23:19 UTCEPSS rescore
  9. 2026-06-30 23:19 UTCEPSS rescore
  10. 2026-06-29 14:03 UTCEPSS rescore
  11. 2026-06-28 14:04 UTCEPSS rescore
  12. 2026-06-28 04:53 UTCEPSS rescore
  13. 2026-06-27 03:05 UTCEPSS rescore
  14. 2026-06-25 13:47 UTCEPSS rescore
  15. 2026-06-25 13:47 UTCEPSS rescore
  16. 2026-06-24 14:02 UTCEPSS rescore
  17. 2026-06-23 21:30 UTCEPSS rescore
  18. 2026-06-22 14:23 UTCEPSS rescore
  19. 2026-06-22 14:23 UTCEPSS rescore
  20. 2026-06-21 01:57 UTCEPSS rescore
  21. 2026-06-21 01:57 UTCEPSS rescore
  22. 2026-06-19 21:52 UTCOSV refresh
  23. 2026-06-19 19:23 UTCEPSS rescore
  24. 2026-06-19 19:23 UTCEPSS rescore
  25. 2026-06-18 17:50 UTCEPSS rescore
Show 70 more
  1. 2026-06-17 17:50 UTCEPSS rescore
  2. 2026-06-16 17:50 UTCEPSS rescore
  3. 2026-06-15 17:45 UTCEPSS rescore
  4. 2026-06-14 23:14 UTCEPSS rescore
  5. 2026-06-14 23:14 UTCEPSS rescore
  6. 2026-06-13 22:57 UTCEPSS rescore
  7. 2026-06-12 23:09 UTCEPSS rescore
  8. 2026-06-11 13:57 UTCEPSS rescore
  9. 2026-06-10 22:15 UTCEPSS rescore
  10. 2026-06-08 14:14 UTCEPSS rescore
  11. 2026-06-07 15:22 UTCEPSS rescore
  12. 2026-06-07 15:22 UTCEPSS rescore
  13. 2026-06-06 13:45 UTCEPSS rescore
  14. 2026-06-06 13:45 UTCEPSS rescore
  15. 2026-06-05 22:44 UTCEPSS rescore
  16. 2026-06-05 06:08 UTCEPSS rescore
  17. 2026-06-05 06:08 UTCEPSS rescore
  18. 2026-06-04 13:10 UTCEPSS rescore
  19. 2026-06-04 13:10 UTCEPSS rescore
  20. 2026-06-02 20:11 UTCEPSS rescore
  21. 2026-06-02 20:11 UTCEPSS rescore
  22. 2026-06-01 13:49 UTCEPSS rescore
  23. 2026-06-01 13:49 UTCEPSS rescore
  24. 2026-05-31 22:28 UTCEPSS rescore
  25. 2026-05-31 01:25 UTCOSV refresh
  26. 2026-05-31 00:14 UTCEPSS rescore
  27. 2026-05-29 13:41 UTCEPSS rescore
  28. 2026-05-28 13:42 UTCEPSS rescore
  29. 2026-05-28 13:42 UTCEPSS rescore
  30. 2026-05-27 13:38 UTCEPSS rescore
  31. 2026-05-27 13:38 UTCEPSS rescore
  32. 2026-05-26 13:42 UTCEPSS rescore
  33. 2026-05-26 13:42 UTCEPSS rescore
  34. 2026-05-26 07:17 UTCEPSS rescore
  35. 2026-05-26 07:17 UTCEPSS rescore
  36. 2026-05-22 21:15 UTCEPSS rescore
  37. 2026-05-22 21:15 UTCEPSS rescore
  38. 2026-05-22 21:15 UTCEPSS rescore
  39. 2026-05-20 22:37 UTCEPSS rescore
  40. 2026-05-20 22:37 UTCEPSS rescore
  41. 2026-05-20 11:21 UTCEPSS rescore
  42. 2026-05-20 11:21 UTCEPSS rescore
  43. 2026-05-20 10:14 UTCEG score recompute
  44. 2026-05-20 10:14 UTCVendor advisory
  45. 2026-05-20 10:14 UTCGHSA enrichment
  46. 2026-05-20 05:52 UTCEG score recompute
  47. 2026-05-20 05:52 UTCVendor advisory
  48. 2026-05-20 05:52 UTCGHSA enrichment
  49. 2026-05-20 01:30 UTCEG score recompute
  50. 2026-05-20 01:30 UTCVendor advisory
  51. 2026-05-20 01:30 UTCGHSA enrichment
  52. 2026-05-19 21:08 UTCEG score recompute
  53. 2026-05-19 21:08 UTCVendor advisory
  54. 2026-05-19 21:08 UTCGHSA enrichment
  55. 2026-05-19 16:46 UTCEG score recompute
  56. 2026-05-19 16:46 UTCVendor advisory
  57. 2026-05-19 16:46 UTCGHSA enrichment
  58. 2026-05-19 12:24 UTCEG score recompute
  59. 2026-05-19 12:24 UTCVendor advisory
  60. 2026-05-19 12:24 UTCGHSA enrichment
  61. 2026-05-19 08:01 UTCEG score recompute
  62. 2026-05-19 08:01 UTCVendor advisory
  63. 2026-05-19 08:01 UTCGHSA enrichment
  64. 2026-05-19 03:40 UTCEG score recompute
  65. 2026-05-19 03:40 UTCVendor advisory
  66. 2026-05-19 03:39 UTCGHSA enrichment
  67. 2026-05-18 23:15 UTCEG score recompute
  68. 2026-05-18 23:15 UTCVendor advisory
  69. 2026-05-18 21:30 UTCEPSS rescore
  70. 2026-05-18 21:30 UTCEPSS rescore

Frequently asked(5)

What is CVE-2017-12932?
CVE-2017-12932 is a critical vulnerability published on August 18, 2017. ext/standard/var_unserializer.re in PHP 7.0.x through 7.0.22 and 7.1.x through 7.1.8 is prone to a heap use after free while unserializing untrusted data, related to improper use of the hash API for key deletion in a situation with an invalid array size. Exploitation of this issue can have an…
When was CVE-2017-12932 disclosed?
CVE-2017-12932 was first published in the National Vulnerability Database on August 18, 2017, with the most recent update on May 13, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2017-12932 actively exploited?
CVE-2017-12932 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 93.7% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2017-12932?
CVE-2017-12932 has a CVSS v3 base score of 9.8 (NVD).
How do I remediate CVE-2017-12932?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2017-12932, 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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