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Vulnerability details: VCID-byru-yj4a-7kgw
Vulnerability ID VCID-byru-yj4a-7kgw
Aliases CVE-2021-43839
GHSA-f854-hpxv-cw9r
Summary
Status Published
Exploitability None
Weighted Severity None
Risk None
Affected and Fixed Packages Package Details
Weaknesses (1)
CWE-670 Always-Incorrect Control Flow Implementation
System Score Found at
epss 0.00289 https://api.first.org/data/v1/epss?cve=CVE-2021-43839
epss 0.00289 https://api.first.org/data/v1/epss?cve=CVE-2021-43839
epss 0.00289 https://api.first.org/data/v1/epss?cve=CVE-2021-43839
cvssv3.1 7.5 https://github.com/crypto-org-chain/cronos
generic_textual HIGH https://github.com/crypto-org-chain/cronos
cvssv3.1 7.5 https://github.com/crypto-org-chain/cronos/commit/150ef237b37ac28c8136e1c0f494932860b9ebe8
generic_textual HIGH https://github.com/crypto-org-chain/cronos/commit/150ef237b37ac28c8136e1c0f494932860b9ebe8
cvssv3.1 7.5 https://github.com/crypto-org-chain/cronos/pull/270
generic_textual HIGH https://github.com/crypto-org-chain/cronos/pull/270
cvssv3.1 7.5 https://github.com/crypto-org-chain/cronos/security/advisories/GHSA-f854-hpxv-cw9r
generic_textual HIGH https://github.com/crypto-org-chain/cronos/security/advisories/GHSA-f854-hpxv-cw9r
cvssv3.1 7.5 https://nvd.nist.gov/vuln/detail/CVE-2021-43839
generic_textual HIGH https://nvd.nist.gov/vuln/detail/CVE-2021-43839
Reference id Reference type URL
https://api.first.org/data/v1/epss?cve=CVE-2021-43839
https://github.com/crypto-org-chain/cronos
https://github.com/crypto-org-chain/cronos/commit/150ef237b37ac28c8136e1c0f494932860b9ebe8
https://github.com/crypto-org-chain/cronos/pull/270
https://github.com/crypto-org-chain/cronos/security/advisories/GHSA-f854-hpxv-cw9r
https://nvd.nist.gov/vuln/detail/CVE-2021-43839
No exploits are available.
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N Found at https://github.com/crypto-org-chain/cronos
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N Found at https://github.com/crypto-org-chain/cronos/commit/150ef237b37ac28c8136e1c0f494932860b9ebe8
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N Found at https://github.com/crypto-org-chain/cronos/pull/270
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N Found at https://github.com/crypto-org-chain/cronos/security/advisories/GHSA-f854-hpxv-cw9r
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N Found at https://nvd.nist.gov/vuln/detail/CVE-2021-43839
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Exploit Prediction Scoring System (EPSS)
Percentile 0.52669
EPSS Score 0.00289
Published At June 11, 2026, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2026-06-12T02:03:36.858323+00:00 EPSS Importer Import https://epss.cyentia.com/epss_scores-current.csv.gz 38.6.0