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Vulnerability from cleanstart
Published
2026-07-30 07:10
Modified
2026-07-30 09:38
Summary
Security fixes in expat 2.4.5-r0
Details
Package expat version 2.4.5-r0 fixes 5 vulnerabilities: CVE-2022-25235, CVE-2022-25236, CVE-2022-25313, CVE-2022-25314, CVE-2022-25315
References
| URL | Type | |
|---|---|---|
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"id": "CLEANSTART-2026-KC95399",
"modified": "2026-07-30T09:38:42Z",
"published": "2026-07-30T07:10:53Z",
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}
CVE-2022-25235 (GCVE-0-2022-25235)
Vulnerability from cvelistv5 – Published: 2022-02-16 00:40 – Updated: 2025-05-05 16:23
VLAI
EPSS
VEX
Summary
xmltok_impl.c in Expat (aka libexpat) before 2.4.5 lacks certain validation of encoding, such as checks for whether a UTF-8 character is valid in a certain context.
Severity
9.8 (Critical)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- n/a
- CWE-116 - Improper Encoding or Escaping of Output
Assigner
References
10 references
| URL | Tags |
|---|---|
| https://github.com/libexpat/libexpat/pull/562 | x_refsource_MISC |
| http://www.openwall.com/lists/oss-security/2022/02/19/1 | mailing-listx_refsource_MLIST |
| https://www.debian.org/security/2022/dsa-5085 | vendor-advisoryx_refsource_DEBIAN |
| https://lists.fedoraproject.org/archives/list/pac… | vendor-advisoryx_refsource_FEDORA |
| https://lists.fedoraproject.org/archives/list/pac… | vendor-advisoryx_refsource_FEDORA |
| https://lists.debian.org/debian-lts-announce/2022… | mailing-listx_refsource_MLIST |
| https://www.oracle.com/security-alerts/cpuapr2022.html | x_refsource_MISC |
| https://security.netapp.com/advisory/ntap-2022030… | x_refsource_CONFIRM |
| https://cert-portal.siemens.com/productcert/pdf/s… | x_refsource_CONFIRM |
| https://security.gentoo.org/glsa/202209-24 | vendor-advisoryx_refsource_GENTOO |
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CVE-2022-25236 (GCVE-0-2022-25236)
Vulnerability from cvelistv5 – Published: 2022-02-16 00:39 – Updated: 2025-05-05 16:23
VLAI
EPSS
VEX
Summary
xmlparse.c in Expat (aka libexpat) before 2.4.5 allows attackers to insert namespace-separator characters into namespace URIs.
Severity
9.8 (Critical)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- n/a
- CWE-668 - Exposure of Resource to Wrong Sphere
Assigner
References
11 references
| URL | Tags |
|---|---|
| https://github.com/libexpat/libexpat/pull/561 | x_refsource_MISC |
| http://www.openwall.com/lists/oss-security/2022/02/19/1 | mailing-listx_refsource_MLIST |
| https://www.debian.org/security/2022/dsa-5085 | vendor-advisoryx_refsource_DEBIAN |
| https://lists.fedoraproject.org/archives/list/pac… | vendor-advisoryx_refsource_FEDORA |
| https://lists.fedoraproject.org/archives/list/pac… | vendor-advisoryx_refsource_FEDORA |
| https://lists.debian.org/debian-lts-announce/2022… | mailing-listx_refsource_MLIST |
| https://www.oracle.com/security-alerts/cpuapr2022.html | x_refsource_MISC |
| https://security.netapp.com/advisory/ntap-2022030… | x_refsource_CONFIRM |
| http://packetstormsecurity.com/files/167238/Zoom-… | x_refsource_MISC |
| https://cert-portal.siemens.com/productcert/pdf/s… | x_refsource_CONFIRM |
| https://security.gentoo.org/glsa/202209-24 | vendor-advisoryx_refsource_GENTOO |
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CVE-2022-25313 (GCVE-0-2022-25313)
Vulnerability from cvelistv5 – Published: 2022-02-18 04:23 – Updated: 2025-05-30 19:43
VLAI
EPSS
VEX
Summary
In Expat (aka libexpat) before 2.4.5, an attacker can trigger stack exhaustion in build_model via a large nesting depth in the DTD element.
Severity
6.5 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- n/a
- CWE-674 - Uncontrolled Recursion
Assigner
References
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| URL | Tags |
|---|---|
| https://github.com/libexpat/libexpat/pull/558 | x_refsource_MISC |
| http://www.openwall.com/lists/oss-security/2022/02/19/1 | mailing-listx_refsource_MLIST |
| https://www.debian.org/security/2022/dsa-5085 | vendor-advisoryx_refsource_DEBIAN |
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| https://lists.debian.org/debian-lts-announce/2022… | mailing-listx_refsource_MLIST |
| https://www.oracle.com/security-alerts/cpuapr2022.html | x_refsource_MISC |
| https://security.netapp.com/advisory/ntap-2022030… | x_refsource_CONFIRM |
| https://cert-portal.siemens.com/productcert/pdf/s… | x_refsource_CONFIRM |
| https://security.gentoo.org/glsa/202209-24 | vendor-advisoryx_refsource_GENTOO |
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CVE-2022-25314 (GCVE-0-2022-25314)
Vulnerability from cvelistv5 – Published: 2022-02-18 04:25 – Updated: 2025-05-05 16:23
VLAI
EPSS
VEX
Summary
In Expat (aka libexpat) before 2.4.5, there is an integer overflow in copyString.
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- n/a
- CWE-190 - Integer Overflow or Wraparound
Assigner
References
9 references
| URL | Tags |
|---|---|
| https://github.com/libexpat/libexpat/pull/560 | x_refsource_MISC |
| http://www.openwall.com/lists/oss-security/2022/02/19/1 | mailing-listx_refsource_MLIST |
| https://www.debian.org/security/2022/dsa-5085 | vendor-advisoryx_refsource_DEBIAN |
| https://lists.fedoraproject.org/archives/list/pac… | vendor-advisoryx_refsource_FEDORA |
| https://lists.fedoraproject.org/archives/list/pac… | vendor-advisoryx_refsource_FEDORA |
| https://www.oracle.com/security-alerts/cpuapr2022.html | x_refsource_MISC |
| https://security.netapp.com/advisory/ntap-2022030… | x_refsource_CONFIRM |
| https://cert-portal.siemens.com/productcert/pdf/s… | x_refsource_CONFIRM |
| https://security.gentoo.org/glsa/202209-24 | vendor-advisoryx_refsource_GENTOO |
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CVE-2022-25315 (GCVE-0-2022-25315)
Vulnerability from cvelistv5 – Published: 2022-02-18 04:24 – Updated: 2025-05-05 16:23
VLAI
EPSS
VEX
Summary
In Expat (aka libexpat) before 2.4.5, there is an integer overflow in storeRawNames.
Severity
9.8 (Critical)
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- n/a
- CWE-190 - Integer Overflow or Wraparound
Assigner
References
10 references
| URL | Tags |
|---|---|
| https://github.com/libexpat/libexpat/pull/559 | x_refsource_MISC |
| http://www.openwall.com/lists/oss-security/2022/02/19/1 | mailing-listx_refsource_MLIST |
| https://www.debian.org/security/2022/dsa-5085 | vendor-advisoryx_refsource_DEBIAN |
| https://lists.fedoraproject.org/archives/list/pac… | vendor-advisoryx_refsource_FEDORA |
| https://lists.fedoraproject.org/archives/list/pac… | vendor-advisoryx_refsource_FEDORA |
| https://lists.debian.org/debian-lts-announce/2022… | mailing-listx_refsource_MLIST |
| https://www.oracle.com/security-alerts/cpuapr2022.html | x_refsource_MISC |
| https://security.netapp.com/advisory/ntap-2022030… | x_refsource_CONFIRM |
| https://cert-portal.siemens.com/productcert/pdf/s… | x_refsource_CONFIRM |
| https://security.gentoo.org/glsa/202209-24 | vendor-advisoryx_refsource_GENTOO |
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Loading…
Trend slope:
-
(linear fit over daily sighting counts)
Show additional events:
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
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