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Vulnerability details: VCID-phjj-j9b4-w7ft
Vulnerability ID VCID-phjj-j9b4-w7ft
Aliases CVE-2023-52425
Summary libexpat through 2.5.0 allows a denial of service (resource consumption) because many full reparsings are required in the case of a large token for which multiple buffer fills are needed.
Status Published
Exploitability 0.5
Weighted Severity 6.8
Risk 3.4
Affected and Fixed Packages Package Details
Weaknesses (1)
CWE-400 Uncontrolled Resource Consumption
System Score Found at
cvssv3 7.5 https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2023-52425.json
epss 0.0061 https://api.first.org/data/v1/epss?cve=CVE-2023-52425
epss 0.0061 https://api.first.org/data/v1/epss?cve=CVE-2023-52425
epss 0.0061 https://api.first.org/data/v1/epss?cve=CVE-2023-52425
epss 0.0061 https://api.first.org/data/v1/epss?cve=CVE-2023-52425
epss 0.0061 https://api.first.org/data/v1/epss?cve=CVE-2023-52425
epss 0.00677 https://api.first.org/data/v1/epss?cve=CVE-2023-52425
epss 0.00677 https://api.first.org/data/v1/epss?cve=CVE-2023-52425
epss 0.00677 https://api.first.org/data/v1/epss?cve=CVE-2023-52425
epss 0.00677 https://api.first.org/data/v1/epss?cve=CVE-2023-52425
epss 0.00677 https://api.first.org/data/v1/epss?cve=CVE-2023-52425
epss 0.00677 https://api.first.org/data/v1/epss?cve=CVE-2023-52425
epss 0.00677 https://api.first.org/data/v1/epss?cve=CVE-2023-52425
epss 0.00677 https://api.first.org/data/v1/epss?cve=CVE-2023-52425
epss 0.00677 https://api.first.org/data/v1/epss?cve=CVE-2023-52425
epss 0.00677 https://api.first.org/data/v1/epss?cve=CVE-2023-52425
epss 0.00677 https://api.first.org/data/v1/epss?cve=CVE-2023-52425
epss 0.00677 https://api.first.org/data/v1/epss?cve=CVE-2023-52425
epss 0.00677 https://api.first.org/data/v1/epss?cve=CVE-2023-52425
cvssv3.1 5.5 https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
cvssv3.1 7.5 https://github.com/libexpat/libexpat/pull/789
ssvc Track https://github.com/libexpat/libexpat/pull/789
cvssv3.1 7.5 https://lists.debian.org/debian-lts-announce/2024/04/msg00006.html
ssvc Track https://lists.debian.org/debian-lts-announce/2024/04/msg00006.html
cvssv3.1 7.5 https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PNRIHC7DVVRAIWFRGV23Y6UZXFBXSQDB/
ssvc Track https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PNRIHC7DVVRAIWFRGV23Y6UZXFBXSQDB/
cvssv3.1 7.5 https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/WNUBSGZFEZOBHJFTAD42SAN4ATW2VEMV/
ssvc Track https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/WNUBSGZFEZOBHJFTAD42SAN4ATW2VEMV/
cvssv3.1 7.5 https://nvd.nist.gov/vuln/detail/CVE-2023-52425
cvssv3.1 7.5 https://security.netapp.com/advisory/ntap-20240614-0003/
ssvc Track https://security.netapp.com/advisory/ntap-20240614-0003/
cvssv3.1 7.5 http://www.openwall.com/lists/oss-security/2024/03/20/5
ssvc Track http://www.openwall.com/lists/oss-security/2024/03/20/5
Reference id Reference type URL
https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2023-52425.json
https://api.first.org/data/v1/epss?cve=CVE-2023-52425
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-52425
https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
1063238 https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1063238
2262877 https://bugzilla.redhat.com/show_bug.cgi?id=2262877
5 http://www.openwall.com/lists/oss-security/2024/03/20/5
789 https://github.com/libexpat/libexpat/pull/789
cpe:2.3:a:libexpat_project:libexpat:*:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:libexpat_project:libexpat:*:*:*:*:*:*:*:*
CVE-2023-52425 https://nvd.nist.gov/vuln/detail/CVE-2023-52425
msg00006.html https://lists.debian.org/debian-lts-announce/2024/04/msg00006.html
ntap-20240614-0003 https://security.netapp.com/advisory/ntap-20240614-0003/
PNRIHC7DVVRAIWFRGV23Y6UZXFBXSQDB https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PNRIHC7DVVRAIWFRGV23Y6UZXFBXSQDB/
RHSA-2024:1530 https://access.redhat.com/errata/RHSA-2024:1530
RHSA-2024:1615 https://access.redhat.com/errata/RHSA-2024:1615
RHSA-2024:2575 https://access.redhat.com/errata/RHSA-2024:2575
RHSA-2024:2839 https://access.redhat.com/errata/RHSA-2024:2839
RHSA-2024:3926 https://access.redhat.com/errata/RHSA-2024:3926
RHSA-2024:4259 https://access.redhat.com/errata/RHSA-2024:4259
RHSA-2025:3453 https://access.redhat.com/errata/RHSA-2025:3453
USN-6694-1 https://usn.ubuntu.com/6694-1/
WNUBSGZFEZOBHJFTAD42SAN4ATW2VEMV https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/WNUBSGZFEZOBHJFTAD42SAN4ATW2VEMV/
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 https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2023-52425.json
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:L/AC:L/PR:L/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)

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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://github.com/libexpat/libexpat/pull/789
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: SSVCv2/E:N/A:Y/T:P/P:M/B:A/M:M/D:T/2024-08-26T19:20:56Z/ Found at https://github.com/libexpat/libexpat/pull/789
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/2024/04/msg00006.html
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: SSVCv2/E:N/A:Y/T:P/P:M/B:A/M:M/D:T/2024-08-26T19:20:56Z/ Found at https://lists.debian.org/debian-lts-announce/2024/04/msg00006.html
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Found at https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PNRIHC7DVVRAIWFRGV23Y6UZXFBXSQDB/
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: SSVCv2/E:N/A:Y/T:P/P:M/B:A/M:M/D:T/2024-08-26T19:20:56Z/ Found at https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PNRIHC7DVVRAIWFRGV23Y6UZXFBXSQDB/
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Found at https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/WNUBSGZFEZOBHJFTAD42SAN4ATW2VEMV/
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: SSVCv2/E:N/A:Y/T:P/P:M/B:A/M:M/D:T/2024-08-26T19:20:56Z/ Found at https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/WNUBSGZFEZOBHJFTAD42SAN4ATW2VEMV/
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Found at https://nvd.nist.gov/vuln/detail/CVE-2023-52425
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:N/I:N/A:H Found at https://security.netapp.com/advisory/ntap-20240614-0003/
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

local

physical

low

high

none

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required

unchanged

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Vector: SSVCv2/E:N/A:Y/T:P/P:M/B:A/M:M/D:T/2024-08-26T19:20:56Z/ Found at https://security.netapp.com/advisory/ntap-20240614-0003/
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Found at http://www.openwall.com/lists/oss-security/2024/03/20/5
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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none

required

unchanged

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Vector: SSVCv2/E:N/A:Y/T:P/P:M/B:A/M:M/D:T/2024-08-26T19:20:56Z/ Found at http://www.openwall.com/lists/oss-security/2024/03/20/5
Exploit Prediction Scoring System (EPSS)
Percentile 0.6882
EPSS Score 0.0061
Published At July 30, 2025, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2025-07-31T08:37:04.919394+00:00 Alpine Linux Importer Import https://secdb.alpinelinux.org/edge/main.json 37.0.0