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Vulnerability details: VCID-nmmj-vr83-zyg1
Vulnerability ID VCID-nmmj-vr83-zyg1
Aliases CVE-2021-46854
Summary mod_radius in ProFTPD before 1.3.7c allows memory disclosure to RADIUS servers because it copies blocks of 16 characters.
Status Published
Exploitability 0.5
Weighted Severity 6.8
Risk 3.4
Affected and Fixed Packages Package Details
Weaknesses (1)
CWE-401 Missing Release of Memory after Effective Lifetime
System Score Found at
epss 0.00618 https://api.first.org/data/v1/epss?cve=CVE-2021-46854
epss 0.00618 https://api.first.org/data/v1/epss?cve=CVE-2021-46854
epss 0.00618 https://api.first.org/data/v1/epss?cve=CVE-2021-46854
epss 0.00618 https://api.first.org/data/v1/epss?cve=CVE-2021-46854
epss 0.00618 https://api.first.org/data/v1/epss?cve=CVE-2021-46854
epss 0.00618 https://api.first.org/data/v1/epss?cve=CVE-2021-46854
epss 0.00618 https://api.first.org/data/v1/epss?cve=CVE-2021-46854
epss 0.00618 https://api.first.org/data/v1/epss?cve=CVE-2021-46854
epss 0.00618 https://api.first.org/data/v1/epss?cve=CVE-2021-46854
epss 0.00618 https://api.first.org/data/v1/epss?cve=CVE-2021-46854
epss 0.00618 https://api.first.org/data/v1/epss?cve=CVE-2021-46854
epss 0.00618 https://api.first.org/data/v1/epss?cve=CVE-2021-46854
epss 0.00618 https://api.first.org/data/v1/epss?cve=CVE-2021-46854
epss 0.00618 https://api.first.org/data/v1/epss?cve=CVE-2021-46854
epss 0.00618 https://api.first.org/data/v1/epss?cve=CVE-2021-46854
cvssv3.1 7.5 https://bugs.gentoo.org/811495
ssvc Track https://bugs.gentoo.org/811495
cvssv3.1 7.5 https://github.com/proftpd/proftpd/issues/1284
ssvc Track https://github.com/proftpd/proftpd/issues/1284
cvssv3.1 7.5 https://github.com/proftpd/proftpd/pull/1285
ssvc Track https://github.com/proftpd/proftpd/pull/1285
cvssv3.1 7.5 https://nvd.nist.gov/vuln/detail/CVE-2021-46854
cvssv3.1 7.5 https://security.gentoo.org/glsa/202305-03
ssvc Track https://security.gentoo.org/glsa/202305-03
cvssv3.1 7.5 http://www.proftpd.org/docs/RELEASE_NOTES-1.3.7e
ssvc Track http://www.proftpd.org/docs/RELEASE_NOTES-1.3.7e
Reference id Reference type URL
https://api.first.org/data/v1/epss?cve=CVE-2021-46854
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-46854
1284 https://github.com/proftpd/proftpd/issues/1284
1285 https://github.com/proftpd/proftpd/pull/1285
202305-03 https://security.gentoo.org/glsa/202305-03
811495 https://bugs.gentoo.org/811495
993173 https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=993173
cpe:2.3:a:proftpd:proftpd:*:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:proftpd:proftpd:*:*:*:*:*:*:*:*
CVE-2021-46854 https://nvd.nist.gov/vuln/detail/CVE-2021-46854
RELEASE_NOTES-1.3.7e http://www.proftpd.org/docs/RELEASE_NOTES-1.3.7e
No exploits are available.
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N Found at https://bugs.gentoo.org/811495
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: SSVCv2/E:N/A:N/T:P/P:M/B:A/M:M/D:T/2025-04-28T20:16:06Z/ Found at https://bugs.gentoo.org/811495
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N Found at https://github.com/proftpd/proftpd/issues/1284
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: SSVCv2/E:N/A:N/T:P/P:M/B:A/M:M/D:T/2025-04-28T20:16:06Z/ Found at https://github.com/proftpd/proftpd/issues/1284
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N Found at https://github.com/proftpd/proftpd/pull/1285
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: SSVCv2/E:N/A:N/T:P/P:M/B:A/M:M/D:T/2025-04-28T20:16:06Z/ Found at https://github.com/proftpd/proftpd/pull/1285
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N Found at https://nvd.nist.gov/vuln/detail/CVE-2021-46854
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:H/I:N/A:N Found at https://security.gentoo.org/glsa/202305-03
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: SSVCv2/E:N/A:N/T:P/P:M/B:A/M:M/D:T/2025-04-28T20:16:06Z/ Found at https://security.gentoo.org/glsa/202305-03
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N Found at http://www.proftpd.org/docs/RELEASE_NOTES-1.3.7e
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: SSVCv2/E:N/A:N/T:P/P:M/B:A/M:M/D:T/2025-04-28T20:16:06Z/ Found at http://www.proftpd.org/docs/RELEASE_NOTES-1.3.7e
Exploit Prediction Scoring System (EPSS)
Percentile 0.6902
EPSS Score 0.00618
Published At July 31, 2025, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2025-07-31T09:46:04.164426+00:00 Vulnrichment Import https://github.com/cisagov/vulnrichment/blob/develop/2021/46xxx/CVE-2021-46854.json 37.0.0