Polkit: xml policy file with a large number of nested elements may lead to out-of-bounds write
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||
|---|---|---|---|---|---|---|---|---|---|
| unaffected |
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| Red Hat | Red Hat Enterprise Linux 10 | affected | — | ||||||
| Red Hat | Red Hat Enterprise Linux 6 | unknown | — | ||||||
| Red Hat | Red Hat Enterprise Linux 7 | unknown | — | ||||||
| Red Hat | Red Hat Enterprise Linux 8 | affected | — | ||||||
| Red Hat | Red Hat Enterprise Linux 9 | affected | — | ||||||
| Red Hat | Red Hat OpenShift Container Platform 4 | affected | — | ||||||
| Red Hat | Red Hat OpenShift Container Platform 4 | affected | — |
Configuration 1 [-]
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No data.
No data available yet.
Vendor Workaround
There's no known mitigation to this vulnerability other than avoiding the implementation of unknown or untrusted polkit policy files to the system.
| Source | ID | Title |
|---|---|---|
EUVD |
EUVD-2025-21350 | A flaw was found in polkit. When processing an XML policy with 32 or more nested elements in depth, an out-of-bounds write can be triggered. This issue can lead to a crash or other unexpected behavior, and arbitrary code execution is not discarded. To exploit this flaw, a high-privilege account is needed as it's required to place the malicious policy file properly. |
Ubuntu USN |
USN-8173-1 | polkit vulnerabilities |
No CVSS v4.0
No CVSS v3.0
No CVSS v2
This CVE is not in the KEV list.
Exploit prediction score: < 1% (0.221% probability within 30 days)
| Type | Values Removed | Values Added |
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| First Time appeared |
Redhat rhel Els
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| CPEs | cpe:/o:redhat:enterprise_linux:6 cpe:/o:redhat:enterprise_linux:7 cpe:/o:redhat:enterprise_linux:8 cpe:/o:redhat:enterprise_linux:9 |
cpe:/a:redhat:enterprise_linux:10 cpe:/a:redhat:enterprise_linux:8 cpe:/a:redhat:enterprise_linux:9 cpe:/o:redhat:rhel_els:6 cpe:/o:redhat:rhel_els:7 |
| Vendors & Products |
Redhat rhel Els
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|---|---|---|
| CPEs | ||
| Vendors & Products |
Redhat rhivos
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| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Redhat rhivos
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| CPEs | cpe:/o:redhat:rhivos:1 | |
| Vendors & Products |
Redhat rhivos
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| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Redhat openshift Container Platform
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| CPEs | cpe:2.3:a:redhat:openshift_container_platform:4.0:*:*:*:*:*:*:* cpe:2.3:o:redhat:enterprise_linux:10.0:*:*:*:*:*:*:* cpe:2.3:o:redhat:enterprise_linux:6.0:*:*:*:*:*:*:* cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:* cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:* cpe:2.3:o:redhat:enterprise_linux:9.0:*:*:*:*:*:*:* |
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| Vendors & Products |
Redhat openshift Container Platform
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| Type | Values Removed | Values Added |
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| References |
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| Type | Values Removed | Values Added |
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| Metrics |
epss
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| Type | Values Removed | Values Added |
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| Metrics |
ssvc
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| Type | Values Removed | Values Added |
|---|---|---|
| Description | No description is available for this CVE. | A flaw was found in polkit. When processing an XML policy with 32 or more nested elements in depth, an out-of-bounds write can be triggered. This issue can lead to a crash or other unexpected behavior, and arbitrary code execution is not discarded. To exploit this flaw, a high-privilege account is needed as it's required to place the malicious policy file properly. |
| Title | polkit: XML policy file with a large number of nested elements may lead to out-of-bounds write | Polkit: xml policy file with a large number of nested elements may lead to out-of-bounds write |
| First Time appeared |
Redhat
Redhat enterprise Linux Redhat openshift |
|
| CPEs | cpe:/a:redhat:openshift:4 cpe:/o:redhat:enterprise_linux:10 cpe:/o:redhat:enterprise_linux:6 cpe:/o:redhat:enterprise_linux:7 cpe:/o:redhat:enterprise_linux:8 cpe:/o:redhat:enterprise_linux:9 |
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| Vendors & Products |
Redhat
Redhat enterprise Linux Redhat openshift |
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| References |
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| Type | Values Removed | Values Added |
|---|---|---|
| Description | No description is available for this CVE. | |
| Title | polkit: XML policy file with a large number of nested elements may lead to out-of-bounds write | |
| Weaknesses | CWE-787 | |
| References |
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| Metrics |
threat_severity
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cvssV3_1
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Out-of-bounds Write