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Vulnerability details: VCID-tk2r-atbr-73ge
Vulnerability ID VCID-tk2r-atbr-73ge
Aliases CVE-2022-4203
GHSA-w67w-mw4j-8qrv
Summary Out-of-bounds Read A read buffer overrun can be triggered in X.509 certificate verification, specifically in name constraint checking. Note that this occurs after certificate chain signature verification and requires either a CA to have signed the malicious certificate or for the application to continue certificate verification despite failure to construct a path to a trusted issuer. The read buffer overrun might result in a crash which could lead to a denial of service attack. In theory it could also result in the disclosure of private memory contents (such as private keys, or sensitive plaintext) although we are not aware of any working exploit leading to memory contents disclosure as of the time of release of this advisory. In a TLS client, this can be triggered by connecting to a malicious server. In a TLS server, this can be triggered if the server requests client authentication and a malicious client connects.
Status Published
Exploitability 0.5
Weighted Severity 9.0
Risk 4.5
Affected and Fixed Packages Package Details
Weaknesses (3)
CWE-1035 OWASP Top Ten 2017 Category A9 - Using Components with Known Vulnerabilities
CWE-125 Out-of-bounds Read
CWE-937 OWASP Top Ten 2013 Category A9 - Using Components with Known Vulnerabilities
System Score Found at
cvssv3 4.9 https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2022-4203.json
epss 0.00593 https://api.first.org/data/v1/epss?cve=CVE-2022-4203
epss 0.00593 https://api.first.org/data/v1/epss?cve=CVE-2022-4203
epss 0.00593 https://api.first.org/data/v1/epss?cve=CVE-2022-4203
epss 0.00593 https://api.first.org/data/v1/epss?cve=CVE-2022-4203
epss 0.00745 https://api.first.org/data/v1/epss?cve=CVE-2022-4203
epss 0.00745 https://api.first.org/data/v1/epss?cve=CVE-2022-4203
epss 0.00745 https://api.first.org/data/v1/epss?cve=CVE-2022-4203
epss 0.00745 https://api.first.org/data/v1/epss?cve=CVE-2022-4203
epss 0.00745 https://api.first.org/data/v1/epss?cve=CVE-2022-4203
epss 0.00745 https://api.first.org/data/v1/epss?cve=CVE-2022-4203
epss 0.00745 https://api.first.org/data/v1/epss?cve=CVE-2022-4203
epss 0.00745 https://api.first.org/data/v1/epss?cve=CVE-2022-4203
epss 0.00745 https://api.first.org/data/v1/epss?cve=CVE-2022-4203
epss 0.00745 https://api.first.org/data/v1/epss?cve=CVE-2022-4203
cvssv3.1 6.5 https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
cvssv3.1_qr CRITICAL https://github.com/advisories/GHSA-w67w-mw4j-8qrv
cvssv3.1 4.9 https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=c927a3492698c254637da836762f9b1f86cffabc
cvssv3.1 9.1 https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=c927a3492698c254637da836762f9b1f86cffabc
generic_textual CRITICAL https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=c927a3492698c254637da836762f9b1f86cffabc
ssvc Track https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=c927a3492698c254637da836762f9b1f86cffabc
cvssv3.1 9.1 https://nvd.nist.gov/vuln/detail/CVE-2022-4203
generic_textual CRITICAL https://nvd.nist.gov/vuln/detail/CVE-2022-4203
cvssv3.1 9.1 https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2023-0003
generic_textual CRITICAL https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2023-0003
cvssv3.1 9.1 https://rustsec.org/advisories/RUSTSEC-2023-0008.html
generic_textual CRITICAL https://rustsec.org/advisories/RUSTSEC-2023-0008.html
cvssv3.1 4.9 https://security.gentoo.org/glsa/202402-08
cvssv3.1 9.1 https://security.gentoo.org/glsa/202402-08
generic_textual CRITICAL https://security.gentoo.org/glsa/202402-08
ssvc Track https://security.gentoo.org/glsa/202402-08
cvssv3.1 4.9 https://www.openssl.org/news/secadv/20230207.txt
cvssv3.1 9.1 https://www.openssl.org/news/secadv/20230207.txt
generic_textual CRITICAL https://www.openssl.org/news/secadv/20230207.txt
ssvc Track https://www.openssl.org/news/secadv/20230207.txt
Reference id Reference type URL
https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2022-4203.json
https://api.first.org/data/v1/epss?cve=CVE-2022-4203
https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=c927a3492698c254637da836762f9b1f86cffabc
https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2023-0003
https://rustsec.org/advisories/RUSTSEC-2023-0008.html
https://security.gentoo.org/glsa/202402-08
https://www.openssl.org/news/secadv/20230207.txt
2164488 https://bugzilla.redhat.com/show_bug.cgi?id=2164488
CVE-2022-4203 https://nvd.nist.gov/vuln/detail/CVE-2022-4203
GHSA-w67w-mw4j-8qrv https://github.com/advisories/GHSA-w67w-mw4j-8qrv
RHSA-2023:0946 https://access.redhat.com/errata/RHSA-2023:0946
RHSA-2023:1199 https://access.redhat.com/errata/RHSA-2023:1199
USN-5844-1 https://usn.ubuntu.com/5844-1/
No exploits are available.
Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H Found at https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2022-4203.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

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Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/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)

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Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H Found at https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=c927a3492698c254637da836762f9b1f86cffabc
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

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Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H Found at https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=c927a3492698c254637da836762f9b1f86cffabc
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

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Vector: SSVCv2/E:N/A:N/T:P/P:M/B:A/M:M/D:T/2025-03-06T15:57:14Z/ Found at https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=c927a3492698c254637da836762f9b1f86cffabc
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H Found at https://nvd.nist.gov/vuln/detail/CVE-2022-4203
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

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Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H Found at https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2023-0003
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

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physical

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Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H Found at https://rustsec.org/advisories/RUSTSEC-2023-0008.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

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Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H Found at https://security.gentoo.org/glsa/202402-08
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

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unchanged

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Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H Found at https://security.gentoo.org/glsa/202402-08
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

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required

unchanged

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Vector: SSVCv2/E:N/A:N/T:P/P:M/B:A/M:M/D:T/2025-03-06T15:57:14Z/ Found at https://security.gentoo.org/glsa/202402-08
Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H Found at https://www.openssl.org/news/secadv/20230207.txt
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

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high

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Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H Found at https://www.openssl.org/news/secadv/20230207.txt
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

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none
Vector: SSVCv2/E:N/A:N/T:P/P:M/B:A/M:M/D:T/2025-03-06T15:57:14Z/ Found at https://www.openssl.org/news/secadv/20230207.txt
Exploit Prediction Scoring System (EPSS)
Percentile 0.69284
EPSS Score 0.00593
Published At April 21, 2026, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2026-04-01T12:50:56.337876+00:00 GitLab Importer Import https://gitlab.com/gitlab-org/advisories-community/-/blob/main/conan/openssl/CVE-2022-4203.yml 38.0.0