CVE-2017-9050

HIGHNVD 7.57.5—
EchelonGraph scoreMEDIUM confidence

This high-severity CVE scores 7.5 under NVD CVSS v3. EPSS exploit probability: 4.6%, top 9% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: epss, nvd
7.5
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 5%CVSS: 7.5Exploit: NoneExposed: 0

A fix is available — apply it.

libxml2 20904-GITv2.9.4-16-g0741801 is vulnerable to a heap-based buffer over-read in the xmlDictAddString function in dict.c. This vulnerability causes programs that use libxml2, such as PHP, to crash. This vulnerability exists because of an incomplete fix for CVE-2016-1839.

CVSS v3
7.5
EG Score
7.5(medium)
EPSS
90.7%
KEV
Not listed

Published

May 18, 2017

Last Modified

May 13, 2026

References (12)

Vendor Advisories for CVE-2017-9050(1)

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

Patch Availability(3)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntulibxml2 (2.7.8.dfsg-5.1ubuntu4.18) @ precise2026-05-22ubuntu
ubuntulibxml2 (2.9.4+dfsg1-2.2ubuntu0.1) @ zesty2026-05-22ubuntu
redhatpatch2018-08-16redhat

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.

Affected Packages

(1 across 1 ecosystem)
RubyGems(1)
PackageVulnerable rangeFixed inDependents
nokogiri1.0.0 ... 1.8.0 (100 versions)1.8.1—

Additional Vendor Advisories

(2)

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 12× in last 7d / 44× 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.

Showing the most recent 100 of 120 total refreshes for this CVE.

  1. 2026-07-22 22:11 UTCEG score recompute
  2. 2026-07-22 14:04 UTCEPSS rescore
  3. 2026-07-21 15:21 UTCEPSS rescore
  4. 2026-07-20 17:04 UTCEPSS rescore
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  6. 2026-07-19 14:28 UTCEPSS rescore
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  11. 2026-07-16 16:59 UTCEPSS rescore
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  13. 2026-07-15 16:55 UTCEPSS rescore
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  19. 2026-07-12 05:43 UTCEPSS rescore
  20. 2026-07-11 22:52 UTCOSV refresh
  21. 2026-07-11 08:24 UTCEPSS rescore
  22. 2026-07-09 19:06 UTCEPSS rescore
  23. 2026-07-08 15:11 UTCEPSS rescore
  24. 2026-07-07 13:42 UTCEPSS rescore
  25. 2026-07-06 16:24 UTCEPSS rescore
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  1. 2026-07-06 16:24 UTCEPSS rescore
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  9. 2026-06-30 23:19 UTCEPSS rescore
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  17. 2026-06-23 21:30 UTCEPSS rescore
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  19. 2026-06-23 05:30 UTCOSV refresh
  20. 2026-06-21 14:54 UTCEPSS rescore
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  22. 2026-06-21 01:57 UTCEPSS rescore
  23. 2026-06-21 01:57 UTCEPSS rescore
  24. 2026-06-19 19:23 UTCEPSS rescore
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  26. 2026-06-18 17:50 UTCEPSS rescore
  27. 2026-06-17 17:50 UTCEPSS rescore
  28. 2026-06-16 17:50 UTCEPSS rescore
  29. 2026-06-15 17:45 UTCEPSS rescore
  30. 2026-06-14 23:14 UTCEPSS rescore
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  36. 2026-06-11 13:57 UTCEPSS rescore
  37. 2026-06-10 22:15 UTCEPSS rescore
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  39. 2026-06-08 14:14 UTCEPSS rescore
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  41. 2026-06-07 15:22 UTCEPSS rescore
  42. 2026-06-07 15:22 UTCEPSS rescore
  43. 2026-06-06 13:45 UTCEPSS rescore
  44. 2026-06-06 13:45 UTCEPSS rescore
  45. 2026-06-06 03:08 UTCOSV refresh
  46. 2026-06-05 22:44 UTCEPSS rescore
  47. 2026-06-05 22:44 UTCEPSS rescore
  48. 2026-06-05 06:08 UTCEPSS rescore
  49. 2026-06-05 06:08 UTCEPSS rescore
  50. 2026-06-04 13:10 UTCEPSS rescore
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  52. 2026-06-02 20:11 UTCEPSS rescore
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  54. 2026-06-01 13:49 UTCEPSS rescore
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  56. 2026-05-31 22:28 UTCEPSS rescore
  57. 2026-05-31 00:14 UTCEPSS rescore
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  59. 2026-05-29 13:41 UTCEPSS rescore
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  62. 2026-05-27 13:38 UTCEPSS rescore
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  65. 2026-05-26 07:17 UTCEPSS rescore
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  67. 2026-05-22 21:15 UTCEPSS rescore
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  73. 2026-05-22 21:15 UTCEPSS rescore
  74. 2026-05-22 13:16 UTCEG score recompute
  75. 2026-05-22 13:16 UTCVendor advisory

Frequently asked(5)

What is CVE-2017-9050?
CVE-2017-9050 is a high vulnerability published on May 18, 2017. libxml2 20904-GITv2.9.4-16-g0741801 is vulnerable to a heap-based buffer over-read in the xmlDictAddString function in dict.c. This vulnerability causes programs that use libxml2, such as PHP, to crash. This vulnerability exists because of an incomplete fix for CVE-2016-1839.
When was CVE-2017-9050 disclosed?
CVE-2017-9050 was first published in the National Vulnerability Database on May 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-2017-9050 actively exploited?
CVE-2017-9050 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 90.7% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2017-9050?
CVE-2017-9050 has a CVSS v3 base score of 7.5 (NVD).
How do I remediate CVE-2017-9050?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2017-9050, 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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