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Vulnerability details: VCID-txt4-6xpy-pqbr
Vulnerability ID VCID-txt4-6xpy-pqbr
Aliases CVE-2021-46828
Summary libtirpc: DoS vulnerability with lots of connections
Status Published
Exploitability None
Weighted Severity None
Risk None
Affected and Fixed Packages Package Details
Weaknesses (1)
CWE-400 Uncontrolled Resource Consumption
System Score Found at
cvssv3.1 7.5 http://git.linux-nfs.org/?p=steved/libtirpc.git%3Ba=commit%3Bh=86529758570cef4c73fb9b9c4104fdc510f701ed
ssvc Track http://git.linux-nfs.org/?p=steved/libtirpc.git%3Ba=commit%3Bh=86529758570cef4c73fb9b9c4104fdc510f701ed
cvssv3 7.5 https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2021-46828.json
epss 0.01199 https://api.first.org/data/v1/epss?cve=CVE-2021-46828
cvssv3.1 7.5 https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
cvssv3.1 7.5 https://lists.debian.org/debian-lts-announce/2022/08/msg00004.html
ssvc Track https://lists.debian.org/debian-lts-announce/2022/08/msg00004.html
cvssv3.1 7.5 https://security.gentoo.org/glsa/202210-33
ssvc Track https://security.gentoo.org/glsa/202210-33
cvssv3.1 7.5 https://security.netapp.com/advisory/ntap-20221007-0004/
ssvc Track https://security.netapp.com/advisory/ntap-20221007-0004/
cvssv3.1 7.5 https://www.debian.org/security/2022/dsa-5200
ssvc Track https://www.debian.org/security/2022/dsa-5200
Reference id Reference type URL
https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2021-46828.json
https://api.first.org/data/v1/epss?cve=CVE-2021-46828
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-46828
https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
1015873 https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1015873
2109352 https://bugzilla.redhat.com/show_bug.cgi?id=2109352
dsa-5200 https://www.debian.org/security/2022/dsa-5200
GLSA-202210-33 https://security.gentoo.org/glsa/202210-33
libtirpc.git%3Ba=commit%3Bh=86529758570cef4c73fb9b9c4104fdc510f701ed http://git.linux-nfs.org/?p=steved/libtirpc.git%3Ba=commit%3Bh=86529758570cef4c73fb9b9c4104fdc510f701ed
msg00004.html https://lists.debian.org/debian-lts-announce/2022/08/msg00004.html
ntap-20221007-0004 https://security.netapp.com/advisory/ntap-20221007-0004/
RHSA-2022:8400 https://access.redhat.com/errata/RHSA-2022:8400
USN-5538-1 https://usn.ubuntu.com/5538-1/
No exploits are available.
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Found at http://git.linux-nfs.org/?p=steved/libtirpc.git%3Ba=commit%3Bh=86529758570cef4c73fb9b9c4104fdc510f701ed
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

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high

none

required

unchanged

changed

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none

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Vector: SSVCv2/E:N/A:Y/T:P/P:M/B:A/M:M/D:T/2025-04-23T13:27:08Z/ Found at http://git.linux-nfs.org/?p=steved/libtirpc.git%3Ba=commit%3Bh=86529758570cef4c73fb9b9c4104fdc510f701ed
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Found at https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2021-46828.json
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

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low

none

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low

none
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Found at https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
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

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low

none

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low

none

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Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Found at https://lists.debian.org/debian-lts-announce/2022/08/msg00004.html
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:Y/T:P/P:M/B:A/M:M/D:T/2025-04-23T13:27:08Z/ Found at https://lists.debian.org/debian-lts-announce/2022/08/msg00004.html
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Found at https://security.gentoo.org/glsa/202210-33
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

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none
Vector: SSVCv2/E:N/A:Y/T:P/P:M/B:A/M:M/D:T/2025-04-23T13:27:08Z/ Found at https://security.gentoo.org/glsa/202210-33
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Found at https://security.netapp.com/advisory/ntap-20221007-0004/
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:Y/T:P/P:M/B:A/M:M/D:T/2025-04-23T13:27:08Z/ Found at https://security.netapp.com/advisory/ntap-20221007-0004/
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Found at https://www.debian.org/security/2022/dsa-5200
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:Y/T:P/P:M/B:A/M:M/D:T/2025-04-23T13:27:08Z/ Found at https://www.debian.org/security/2022/dsa-5200
Exploit Prediction Scoring System (EPSS)
Percentile 0.79204
EPSS Score 0.01199
Published At May 29, 2026, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2026-05-29T09:12:01.422976+00:00 RedHat Importer Import https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2021-46828.json 38.6.0