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  4. CVE 2021 45700 process crashes when the cell used as depgroup is
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Back to active CVEs
Unknown severity · Source severity not reportedCVE-2021-45700GHSA-45P7-C959-RGCM

Process crashes when the cell used as DepGroup is not aliveCVE-2021-45700

Answer in brief

CVE-2021-45700 records a Unknown severity vulnerability in Process crashes when the cell used as DepGroup is not alive. The current sources do not mark it as known exploited. The current feed maps ckb (crates.io). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Jul 25, 2021Updated Oct 12, 2026Source checked Oct 12, 2026First seen by HOL Oct 12, 2026Material review Oct 12, 2026
Upstream Advisory

Key facts

Risk
Unknown severitySource severity not reported
Exploitation
Not marked as known exploited
Affected software
1 mapped package or product
Fix availability
Available

Why this deserves its current priority

A CVSS score is not reported in the current record. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps ckb (crates.io). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
PackageAffected rangeFixed version
ckbcrates.io>=0.0.0-0 <0.40.00.40.0

Recommended response

  1. 1Check inventory. Check lockfiles and deployed manifests for ckb.
  2. 2Review the reported fix. Update ckb to 0.40.0 if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

  1. Published upstream

    Jul 25, 2021

    Evidence: source:osv:source_dates:source-dates:record

  2. Source modified

    Oct 12, 2026

    Evidence: source:osv:source_dates:source-dates:record

  3. First seen by HOL

    Oct 12, 2026

Sources and claim methodology

  • Source referencecrates.io
  • Source referencerustsec.org
Upstream source description

It's easy to create a malign transaction which uses the dead cell as the DepGroup in the DepCells. The transaction can crash all the receiving nodes.

Quoted source text, attributed separately from HOL analysis.

Record context

Vulnerability class
Vulnerability
EPSS
Not reported
CWE IDs
Not reported
Source
OSV
Source checked
Oct 12, 2026
References
2 linked sources
Open source record