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Vulnerability details: VCID-zemq-5gq1-bbda
Vulnerability ID VCID-zemq-5gq1-bbda
Aliases CVE-2023-52426
Summary libexpat through 2.5.0 allows recursive XML Entity Expansion if XML_DTD is undefined at compile time.
Status Published
Exploitability 0.5
Weighted Severity 5.0
Risk 2.5
Affected and Fixed Packages Package Details
Weaknesses (1)
CWE-776 Improper Restriction of Recursive Entity References in DTDs ('XML Entity Expansion')
System Score Found at
cvssv3 5.5 https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2023-52426.json
epss 0.00019 https://api.first.org/data/v1/epss?cve=CVE-2023-52426
epss 0.00019 https://api.first.org/data/v1/epss?cve=CVE-2023-52426
epss 0.00019 https://api.first.org/data/v1/epss?cve=CVE-2023-52426
epss 0.00019 https://api.first.org/data/v1/epss?cve=CVE-2023-52426
epss 0.00019 https://api.first.org/data/v1/epss?cve=CVE-2023-52426
epss 0.00019 https://api.first.org/data/v1/epss?cve=CVE-2023-52426
epss 0.00019 https://api.first.org/data/v1/epss?cve=CVE-2023-52426
epss 0.00019 https://api.first.org/data/v1/epss?cve=CVE-2023-52426
epss 0.00019 https://api.first.org/data/v1/epss?cve=CVE-2023-52426
epss 0.00019 https://api.first.org/data/v1/epss?cve=CVE-2023-52426
epss 0.00019 https://api.first.org/data/v1/epss?cve=CVE-2023-52426
epss 0.00019 https://api.first.org/data/v1/epss?cve=CVE-2023-52426
epss 0.00019 https://api.first.org/data/v1/epss?cve=CVE-2023-52426
epss 0.00019 https://api.first.org/data/v1/epss?cve=CVE-2023-52426
epss 0.00019 https://api.first.org/data/v1/epss?cve=CVE-2023-52426
epss 0.00019 https://api.first.org/data/v1/epss?cve=CVE-2023-52426
epss 0.00019 https://api.first.org/data/v1/epss?cve=CVE-2023-52426
epss 0.00019 https://api.first.org/data/v1/epss?cve=CVE-2023-52426
ssvc Track https://cwe.mitre.org/data/definitions/776.html
cvssv3.1 5.5 https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
ssvc Track https://github.com/libexpat/libexpat/commit/0f075ec8ecb5e43f8fdca5182f8cca4703da0404
ssvc Track https://github.com/libexpat/libexpat/pull/777
ssvc Track 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/WNUBSGZFEZOBHJFTAD42SAN4ATW2VEMV/
cvssv3.1 5.5 https://nvd.nist.gov/vuln/detail/CVE-2023-52426
ssvc Track https://security.netapp.com/advisory/ntap-20240307-0005/
Reference id Reference type URL
https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2023-52426.json
https://api.first.org/data/v1/epss?cve=CVE-2023-52426
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-52426
https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
0f075ec8ecb5e43f8fdca5182f8cca4703da0404 https://github.com/libexpat/libexpat/commit/0f075ec8ecb5e43f8fdca5182f8cca4703da0404
1063240 https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1063240
2262879 https://bugzilla.redhat.com/show_bug.cgi?id=2262879
776.html https://cwe.mitre.org/data/definitions/776.html
777 https://github.com/libexpat/libexpat/pull/777
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-2023-52426 https://nvd.nist.gov/vuln/detail/CVE-2023-52426
ntap-20240307-0005 https://security.netapp.com/advisory/ntap-20240307-0005/
PNRIHC7DVVRAIWFRGV23Y6UZXFBXSQDB https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PNRIHC7DVVRAIWFRGV23Y6UZXFBXSQDB/
WNUBSGZFEZOBHJFTAD42SAN4ATW2VEMV https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/WNUBSGZFEZOBHJFTAD42SAN4ATW2VEMV/
No exploits are available.
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H Found at https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2023-52426.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: SSVCv2/E:N/A:N/T:P/P:M/B:A/M:M/D:T/2024-06-26T15:54:28Z/ Found at https://cwe.mitre.org/data/definitions/776.html
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N 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: SSVCv2/E:N/A:N/T:P/P:M/B:A/M:M/D:T/2024-06-26T15:54:28Z/ Found at https://github.com/libexpat/libexpat/commit/0f075ec8ecb5e43f8fdca5182f8cca4703da0404
Vector: SSVCv2/E:N/A:N/T:P/P:M/B:A/M:M/D:T/2024-06-26T15:54:28Z/ Found at https://github.com/libexpat/libexpat/pull/777
Vector: SSVCv2/E:N/A:N/T:P/P:M/B:A/M:M/D:T/2024-06-26T15:54:28Z/ Found at https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PNRIHC7DVVRAIWFRGV23Y6UZXFBXSQDB/
Vector: SSVCv2/E:N/A:N/T:P/P:M/B:A/M:M/D:T/2024-06-26T15:54:28Z/ Found at https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/WNUBSGZFEZOBHJFTAD42SAN4ATW2VEMV/
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H Found at https://nvd.nist.gov/vuln/detail/CVE-2023-52426
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/2024-06-26T15:54:28Z/ Found at https://security.netapp.com/advisory/ntap-20240307-0005/
Exploit Prediction Scoring System (EPSS)
Percentile 0.03379
EPSS Score 0.00019
Published At July 30, 2025, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2025-07-31T08:28:14.028276+00:00 Alpine Linux Importer Import https://secdb.alpinelinux.org/v3.21/main.json 37.0.0