CVE-2010-4657

HIGHNVD 7.57.5—
EchelonGraph scoreMEDIUM confidence

Score 7.5 from GitHub Security Advisory (severity: HIGH) published 2022-04-21. NVD baseline CVSS 7.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
7.5
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 2%CVSS: 7.5Exploit: NoneExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

PHP5 before 5.4.4 allows passing invalid utf-8 strings via the xmlTextWriterWriteAttribute, which are then misparsed by libxml2. This results in memory leak into the resulting output.

CVSS v3
7.5
EG Score
7.5(medium)
EPSS
72.0%
KEV
Not listed

Published

November 13, 2019

Last Modified

November 21, 2024

References (8)

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 8× in last 7d / 43× 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. 2026-07-11 08:22 UTCEPSS rescore
  2. 2026-07-11 08:22 UTCEPSS rescore
  3. 2026-07-08 15:10 UTCEPSS rescore
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  10. 2026-07-02 14:01 UTCEPSS rescore
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  13. 2026-06-30 23:19 UTCEPSS rescore
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  15. 2026-06-29 14:02 UTCEPSS rescore
  16. 2026-06-28 14:03 UTCEPSS rescore
  17. 2026-06-28 04:53 UTCEPSS rescore
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  19. 2026-06-27 03:05 UTCEPSS rescore
  20. 2026-06-27 03:05 UTCEPSS rescore
  21. 2026-06-25 13:46 UTCEPSS rescore
  22. 2026-06-24 14:02 UTCEPSS rescore
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  24. 2026-06-23 21:30 UTCEPSS rescore
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  1. 2026-06-22 14:22 UTCEPSS rescore
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  3. 2026-06-21 01:56 UTCEPSS rescore
  4. 2026-06-21 01:56 UTCEPSS rescore
  5. 2026-06-19 19:22 UTCEPSS rescore
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  7. 2026-06-18 17:49 UTCEPSS rescore
  8. 2026-06-18 17:49 UTCEPSS rescore
  9. 2026-06-17 17:49 UTCEPSS rescore
  10. 2026-06-17 17:49 UTCEPSS rescore
  11. 2026-06-17 17:49 UTCEPSS rescore
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  14. 2026-06-14 23:14 UTCEPSS rescore
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  16. 2026-06-13 22:57 UTCEPSS rescore
  17. 2026-06-13 22:57 UTCEPSS rescore
  18. 2026-06-12 23:08 UTCEPSS rescore
  19. 2026-06-11 13:56 UTCEPSS rescore
  20. 2026-06-10 22:14 UTCEPSS rescore
  21. 2026-06-10 13:17 UTCEPSS rescore
  22. 2026-06-08 14:14 UTCEPSS rescore
  23. 2026-06-08 14:14 UTCEPSS rescore
  24. 2026-06-07 15:22 UTCEPSS rescore
  25. 2026-06-07 15:22 UTCEPSS rescore
  26. 2026-06-05 22:44 UTCEPSS rescore
  27. 2026-06-05 06:08 UTCEPSS rescore
  28. 2026-06-05 06:07 UTCEPSS rescore
  29. 2026-06-04 13:09 UTCEPSS rescore
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  31. 2026-06-02 20:10 UTCEPSS rescore
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  33. 2026-06-01 13:49 UTCEPSS rescore
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  35. 2026-05-31 22:28 UTCEPSS rescore
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  37. 2026-05-31 00:14 UTCEPSS rescore
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  39. 2026-05-29 13:41 UTCEPSS rescore
  40. 2026-05-29 13:40 UTCEPSS rescore
  41. 2026-05-28 13:42 UTCEPSS rescore
  42. 2026-05-28 13:42 UTCEPSS rescore
  43. 2026-05-28 13:42 UTCEPSS rescore
  44. 2026-05-27 13:38 UTCEPSS rescore
  45. 2026-05-27 13:38 UTCEPSS rescore
  46. 2026-05-27 11:50 UTCEG score recompute
  47. 2026-05-27 11:50 UTCGHSA enrichment
  48. 2026-05-26 13:41 UTCEPSS rescore
  49. 2026-05-26 13:41 UTCEPSS rescore
  50. 2026-05-26 07:16 UTCEPSS rescore
  51. 2026-05-26 07:16 UTCEPSS rescore
  52. 2026-05-24 16:43 UTCEPSS rescore

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2010-4657?
CVE-2010-4657 is a high vulnerability published on November 13, 2019. PHP5 before 5.4.4 allows passing invalid utf-8 strings via the xmlTextWriterWriteAttribute, which are then misparsed by libxml2. This results in memory leak into the resulting output.
When was CVE-2010-4657 disclosed?
CVE-2010-4657 was first published in the National Vulnerability Database on November 13, 2019, with the most recent update on November 21, 2024. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2010-4657 actively exploited?
CVE-2010-4657 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 72.0% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2010-4657?
CVE-2010-4657 has a CVSS v3 base score of 7.5 (NVD).
How do I remediate CVE-2010-4657?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2010-4657, 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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