CVE-2021-29539

LOWNVD 2.52.5—
EchelonGraph scoreMEDIUM confidence

This low-severity CVE scores 2.5 under NVD CVSS v3. EPSS exploit probability: 0.0%, top 99% 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
2.5
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS: 0%CVSS: 2.5Exploit: NoneExposed: 0

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

TensorFlow is an end-to-end open source platform for machine learning. Calling tf.raw_ops.ImmutableConst(https://www.tensorflow.org/api_docs/python/tf/raw_ops/ImmutableConst) with a dtype of tf.resource or tf.variant results in a segfault in the implementation as code assumes that the tensor contents are pure scalars. We have patched the issue in 4f663d4b8f0bec1b48da6fa091a7d29609980fa4 and will release TensorFlow 2.5.0 containing the patch. TensorFlow nightly packages after this commit will also have the issue resolved. If using tf.raw_ops.ImmutableConst in code, you can prevent the segfault by inserting a filter for the dtype argument.

CVSS v3
2.5
EG Score
2.5(medium)
EPSS
8.7%
KEV
Not listed

Published

May 14, 2021

Last Modified

November 21, 2024

References (4)

Affected Packages

(3 across 1 ecosystem)
PyPI(3)
PackageVulnerable rangeFixed inDependents
tensorflow0.12.0 ... 2.4.2 (102 versions)2.4.3—
tensorflow-cpu1.15.0 ... 2.4.2 (17 versions)2.4.3—
tensorflow-gpu0.12.0 ... 2.4.2 (52 versions)2.4.3—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 10× in last 7d / 46× 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 08:25 UTCEPSS rescore
  2. 2026-07-11 08:25 UTCEPSS rescore
  3. 2026-07-09 19:07 UTCEPSS rescore
  4. 2026-07-08 15:12 UTCEPSS rescore
  5. 2026-07-07 13:43 UTCEPSS rescore
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  10. 2026-07-05 02:28 UTCEPSS rescore
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  13. 2026-07-02 16:57 UTCEPSS rescore
  14. 2026-07-01 15:03 UTCEPSS rescore
  15. 2026-07-01 03:18 UTCOSV refresh
  16. 2026-06-30 23:20 UTCEPSS rescore
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  18. 2026-06-29 14:04 UTCEPSS rescore
  19. 2026-06-28 14:05 UTCEPSS rescore
  20. 2026-06-28 04:54 UTCEPSS rescore
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  22. 2026-06-27 03:06 UTCEPSS rescore
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  24. 2026-06-25 13:48 UTCEPSS rescore
  25. 2026-06-25 13:48 UTCEPSS rescore
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  1. 2026-06-24 14:03 UTCEPSS rescore
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  3. 2026-06-23 21:31 UTCEPSS rescore
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  5. 2026-06-22 14:24 UTCEPSS rescore
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  7. 2026-06-21 14:55 UTCEPSS rescore
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  9. 2026-06-21 01:58 UTCEPSS rescore
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  11. 2026-06-19 19:24 UTCEPSS rescore
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  13. 2026-06-18 17:51 UTCEPSS rescore
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  15. 2026-06-16 17:51 UTCEPSS rescore
  16. 2026-06-15 17:46 UTCEPSS rescore
  17. 2026-06-14 23:15 UTCEPSS rescore
  18. 2026-06-13 22:58 UTCEPSS rescore
  19. 2026-06-13 22:58 UTCEPSS rescore
  20. 2026-06-13 05:43 UTCOSV refresh
  21. 2026-06-12 23:10 UTCEPSS rescore
  22. 2026-06-11 13:58 UTCEPSS rescore
  23. 2026-06-10 22:16 UTCEPSS rescore
  24. 2026-06-10 13:20 UTCEPSS rescore
  25. 2026-06-08 14:15 UTCEPSS rescore
  26. 2026-06-07 15:23 UTCEPSS rescore
  27. 2026-06-07 15:23 UTCEPSS rescore
  28. 2026-06-05 22:45 UTCEPSS rescore
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  30. 2026-06-05 06:09 UTCEPSS rescore
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  32. 2026-06-04 13:10 UTCEPSS rescore
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  34. 2026-06-02 20:11 UTCEPSS rescore
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  37. 2026-06-01 13:50 UTCEPSS rescore
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  39. 2026-05-31 22:29 UTCEPSS rescore
  40. 2026-05-31 22:29 UTCEPSS rescore
  41. 2026-05-29 13:42 UTCEPSS rescore
  42. 2026-05-28 13:43 UTCEPSS rescore
  43. 2026-05-28 13:43 UTCEPSS rescore
  44. 2026-05-27 13:39 UTCEPSS rescore
  45. 2026-05-27 13:39 UTCEPSS rescore
  46. 2026-05-26 16:34 UTCEG score recompute
  47. 2026-05-26 13:42 UTCEPSS rescore
  48. 2026-05-26 07:17 UTCEPSS rescore
  49. 2026-05-26 07:17 UTCEPSS rescore

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2021-29539?
CVE-2021-29539 is a low vulnerability published on May 14, 2021. TensorFlow is an end-to-end open source platform for machine learning. Calling tf.rawops.ImmutableConst(https://www.tensorflow.org/apidocs/python/tf/rawops/ImmutableConst) with a dtype of tf.resource or tf.variant results in a segfault in the implementation as code assumes that the tensor contents…
When was CVE-2021-29539 disclosed?
CVE-2021-29539 was first published in the National Vulnerability Database on May 14, 2021, 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-2021-29539 actively exploited?
CVE-2021-29539 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 8.7% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2021-29539?
CVE-2021-29539 has a CVSS v3 base score of 2.5 (NVD).
How do I remediate CVE-2021-29539?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2021-29539, 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.

Dependency Blast Radius

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