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Vulnerability details: VCID-qs1p-1j9u-3khg
Vulnerability ID VCID-qs1p-1j9u-3khg
Aliases CVE-2020-37127
Summary dnsmasq: dnsmasq-utils 'dhcp_release' Denial of Service
Status Published
Exploitability 0.5
Weighted Severity 5.0
Risk 2.5
Affected and Fixed Packages Package Details
Weaknesses (2)
CWE-120 Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
CWE-121 Stack-based Buffer Overflow
System Score Found at
cvssv3 5.5 https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2020-37127.json
epss 6e-05 https://api.first.org/data/v1/epss?cve=CVE-2020-37127
epss 6e-05 https://api.first.org/data/v1/epss?cve=CVE-2020-37127
epss 6e-05 https://api.first.org/data/v1/epss?cve=CVE-2020-37127
epss 6e-05 https://api.first.org/data/v1/epss?cve=CVE-2020-37127
epss 6e-05 https://api.first.org/data/v1/epss?cve=CVE-2020-37127
epss 6e-05 https://api.first.org/data/v1/epss?cve=CVE-2020-37127
epss 6e-05 https://api.first.org/data/v1/epss?cve=CVE-2020-37127
epss 6e-05 https://api.first.org/data/v1/epss?cve=CVE-2020-37127
cvssv3.1 5.5 https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
cvssv3.1 5.5 https://launchpad.net/ubuntu/+source/dnsmasq/2.79-1
cvssv4 6.9 https://launchpad.net/ubuntu/+source/dnsmasq/2.79-1
ssvc Track https://launchpad.net/ubuntu/+source/dnsmasq/2.79-1
cvssv3.1 5.5 https://www.exploit-db.com/exploits/48301
cvssv4 6.9 https://www.exploit-db.com/exploits/48301
ssvc Track https://www.exploit-db.com/exploits/48301
cvssv3.1 5.5 https://www.vulncheck.com/advisories/dnsmasq-utils-dhcprelease-denial-of-service
cvssv4 6.9 https://www.vulncheck.com/advisories/dnsmasq-utils-dhcprelease-denial-of-service
ssvc Track https://www.vulncheck.com/advisories/dnsmasq-utils-dhcprelease-denial-of-service
Reference id Reference type URL
https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2020-37127.json
https://api.first.org/data/v1/epss?cve=CVE-2020-37127
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-37127
https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
2437103 https://bugzilla.redhat.com/show_bug.cgi?id=2437103
2.79-1 https://launchpad.net/ubuntu/+source/dnsmasq/2.79-1
48301 https://www.exploit-db.com/exploits/48301
dnsmasq-utils-dhcprelease-denial-of-service https://www.vulncheck.com/advisories/dnsmasq-utils-dhcprelease-denial-of-service
No exploits are available.
Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H Found at https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2020-37127.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

high

low

none

high

low

none
Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/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

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H Found at https://launchpad.net/ubuntu/+source/dnsmasq/2.79-1
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:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N Found at https://launchpad.net/ubuntu/+source/dnsmasq/2.79-1
Attack Vector (AV) Attack Complexity (AC) Attack Requirements (AT) Privileges Required (PR) User Interaction (UI) Vulnerable System Impact Confidentiality (VC) Vulnerable System Impact Integrity (VI) Vulnerable System Impact Availability (VA) Subsequent System Impact Confidentiality (SC) Subsequent System Impact Integrity (SI) Subsequent System Impact Availability (SA)

network

adjacent

local

physical

low

high

none

present

none

low

high

none

passive

active

high

low

none

high

low

none

high

low

none

high

low

none

high

low

none

high

low

none
Vector: SSVCv2/E:P/A:N/T:P/P:M/B:A/M:M/D:T/2026-02-05T21:17:56Z/ Found at https://launchpad.net/ubuntu/+source/dnsmasq/2.79-1
Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H Found at https://www.exploit-db.com/exploits/48301
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:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N Found at https://www.exploit-db.com/exploits/48301
Attack Vector (AV) Attack Complexity (AC) Attack Requirements (AT) Privileges Required (PR) User Interaction (UI) Vulnerable System Impact Confidentiality (VC) Vulnerable System Impact Integrity (VI) Vulnerable System Impact Availability (VA) Subsequent System Impact Confidentiality (SC) Subsequent System Impact Integrity (SI) Subsequent System Impact Availability (SA)

network

adjacent

local

physical

low

high

none

present

none

low

high

none

passive

active

high

low

none

high

low

none

high

low

none

high

low

none

high

low

none

high

low

none
Vector: SSVCv2/E:P/A:N/T:P/P:M/B:A/M:M/D:T/2026-02-05T21:17:56Z/ Found at https://www.exploit-db.com/exploits/48301
Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H Found at https://www.vulncheck.com/advisories/dnsmasq-utils-dhcprelease-denial-of-service
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:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N Found at https://www.vulncheck.com/advisories/dnsmasq-utils-dhcprelease-denial-of-service
Attack Vector (AV) Attack Complexity (AC) Attack Requirements (AT) Privileges Required (PR) User Interaction (UI) Vulnerable System Impact Confidentiality (VC) Vulnerable System Impact Integrity (VI) Vulnerable System Impact Availability (VA) Subsequent System Impact Confidentiality (SC) Subsequent System Impact Integrity (SI) Subsequent System Impact Availability (SA)

network

adjacent

local

physical

low

high

none

present

none

low

high

none

passive

active

high

low

none

high

low

none

high

low

none

high

low

none

high

low

none

high

low

none
Vector: SSVCv2/E:P/A:N/T:P/P:M/B:A/M:M/D:T/2026-02-05T21:17:56Z/ Found at https://www.vulncheck.com/advisories/dnsmasq-utils-dhcprelease-denial-of-service
Exploit Prediction Scoring System (EPSS)
Percentile 0.00393
EPSS Score 6e-05
Published At April 1, 2026, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2026-04-01T13:31:42.611813+00:00 RedHat Importer Import https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2020-37127.json 38.0.0