CVE-2025-49794

CRITICAL

9.1

CVSS v3

Description

A use-after-free vulnerability was found in libxml2. This issue occurs when parsing XPath elements under certain circumstances when the XML schematron has the <sch:name path="..."/> schema elements. This flaw allows a malicious actor to craft a malicious XML document used as input for libxml, resulting in the program's crash using libxml or other possible undefined behaviors.

CWE-825

How to fix

Remediation Available

libxml2Debian

Fixed in:2.9.10+dfsg-6.7+deb11u8CVE-2025-49794

Fixed in:2.9.14+dfsg-1.3~deb12u3CVE-2025-49794

Fixed in:2.12.7+dfsg+really2.9.14-2CVE-2025-49794

libxml2Rocky

Fixed in:0:2.12.5-7.el10_0RHSA-2025:10630

Fixed in:0:2.9.1-6.el7_9.10.ppc64RHSA-2025:12240

Fixed in:0:2.9.1-6.el7_9.10.ppcRHSA-2025:12240

Fixed in:0:2.9.1-6.el7_9.10RHSA-2025:12240

libxml2Red Hat / RHEL

Fixed in:0:2.12.5-7.el10_0RHSA-2025:10630

Fixed in:0:2.9.1-6.el7_9.10RHSA-2025:12240

libxml2-debuginfoRed Hat / RHEL

Fixed in:0:2.12.5-7.el10_0RHSA-2025:10630

Fixed in:0:2.9.1-6.el7_9.10.ppc64RHSA-2025:12240

Fixed in:0:2.9.1-6.el7_9.10.s390RHSA-2025:12240

Fixed in:0:2.9.1-6.el7_9.10RHSA-2025:12240

libxml2-debuginfoRocky

Fixed in:0:2.12.5-7.el10_0RHSA-2025:10630

Fixed in:0:2.9.1-6.el7_9.10.s390RHSA-2025:12240

Fixed in:0:2.9.1-6.el7_9.10.ppc64RHSA-2025:12240

Fixed in:0:2.9.1-6.el7_9.10.ppcRHSA-2025:12240

Fixed in:0:2.9.1-6.el7_9.10RHSA-2025:12240

libxml2-debugsourceRocky

Fixed in:0:2.12.5-7.el10_0RHSA-2025:10630

Fixed in:0:2.9.7-21.el8_10.1RHSA-2025:10698

Fixed in:0:2.9.7-9.el8_4.6RHSA-2025:12241

Fixed in:0:2.9.7-13.el8_6.10RHSA-2025:12098

libxml2-debugsourceRed Hat / RHEL

Fixed in:0:2.12.5-7.el10_0RHSA-2025:10630

Fixed in:0:2.9.7-21.el8_10.1RHSA-2025:10698

libxml2-develRed Hat / RHEL

Fixed in:0:2.12.5-7.el10_0RHSA-2025:10630

Fixed in:0:2.9.1-6.el7_9.10RHSA-2025:12240

Fixed in:0:2.9.1-6.el7_9.10.s390RHSA-2025:12240

libxml2-develRocky

Fixed in:0:2.12.5-7.el10_0RHSA-2025:10630

Fixed in:0:2.9.1-6.el7_9.10RHSA-2025:12240

libxml2-pythonRocky

Fixed in:0:2.9.1-6.el7_9.10RHSA-2025:12240

Fixed in:0:2.9.1-6.el7_9.10.ppc64RHSA-2025:12240

libxml2-pythonRed Hat / RHEL

Fixed in:0:2.9.1-6.el7_9.10RHSA-2025:12240

Fixed in:0:2.9.1-6.el7_9.10.ppc64RHSA-2025:12240

Fixed in:0:2.9.1-6.el7_9.10RHSA-2025:12240

libxml2-staticRed Hat / RHEL

Fixed in:0:2.12.5-7.el10_0RHSA-2025:10630

Fixed in:0:2.9.1-6.el7_9.10RHSA-2025:12240

Fixed in:0:2.9.1-6.el7_9.10.s390RHSA-2025:12240

Fixed in:0:2.9.1-6.el7_9.10.ppcRHSA-2025:12240

Fixed in:0:2.9.1-6.el7_9.10RHSA-2025:12240

libxml2-staticRocky

Fixed in:0:2.12.5-7.el10_0RHSA-2025:10630

Fixed in:0:2.9.1-6.el7_9.10RHSA-2025:12240

Fixed in:0:2.9.1-6.el7_9.10.s390RHSA-2025:12240

Fixed in:0:2.9.1-6.el7_9.10RHSA-2025:12240

openshift-serverless-1/logicRocky

Fixed in:operator-bundle@sha256:82cab0630e0615a70f4a48aceca9ead900324a48b4d5e992f5f5d7b5f4186add_amd64RHSA-2026:0934

Fixed in:operator-bundle@sha256:3a7ac84bbdb706e4bbce0fed2e3c6b8c4cd14d12deee77470ac623198f0fe2f4_ppc64leRHSA-2026:0934

Fixed in:rhel8-operator@sha256:810ebae2db120891302d6d2c1a6878dd4f4f3c483c3842063ed3748df8a56e1e_arm64RHSA-2026:0934

Fixed in:operator-bundle@sha256:1952b244eefe4a9befb32feb68517ba3cb33dabda85193304f8cf1865a983e12_arm64RHSA-2026:0934

Fixed in:rhel8-operator@sha256:11ceb16782fc88337bdf1e25dea2450ef0a18f5e626ff66805f8139b87f1af0a_amd64RHSA-2026:0934

Fixed in:rhel8-operator@sha256:14121fa98dfdd1fe005140c16fc1d8c4534bfdadc200c361b96fff26864d5537_ppc64leRHSA-2026:0934

openshift-serverless-1/logicRed Hat / RHEL

Fixed in:rhel8-operator@sha256:11ceb16782fc88337bdf1e25dea2450ef0a18f5e626ff66805f8139b87f1af0a_amd64RHSA-2026:0934

Fixed in:operator-bundle@sha256:82cab0630e0615a70f4a48aceca9ead900324a48b4d5e992f5f5d7b5f4186add_amd64RHSA-2026:0934

Fixed in:operator-bundle@sha256:3a7ac84bbdb706e4bbce0fed2e3c6b8c4cd14d12deee77470ac623198f0fe2f4_ppc64leRHSA-2026:0934

Fixed in:operator-bundle@sha256:1952b244eefe4a9befb32feb68517ba3cb33dabda85193304f8cf1865a983e12_arm64RHSA-2026:0934

Fixed in:rhel8-operator@sha256:810ebae2db120891302d6d2c1a6878dd4f4f3c483c3842063ed3748df8a56e1e_arm64RHSA-2026:0934

Fixed in:rhel8-operator@sha256:14121fa98dfdd1fe005140c16fc1d8c4534bfdadc200c361b96fff26864d5537_ppc64leRHSA-2026:0934

openshift-serverless-1/logic-data-indexRocky

Fixed in:ephemeral-rhel8@sha256:5c56a7766667f767be1caf592bbffac12ec7faf11604ff8c07f74b737299396c_amd64RHSA-2026:0934

Fixed in:ephemeral-rhel8@sha256:a7bc7836315c4cd780bd7ffb107c4766002338064688ab32d867e31f71555ec0_ppc64leRHSA-2026:0934

Fixed in:postgresql-rhel8@sha256:5471e98d5131187f6610009cb438df50fe4fed9ab579ec83ab77da7c3bc6bb5b_ppc64leRHSA-2026:0934

Fixed in:postgresql-rhel8@sha256:325ba169cd6a0997ecef78c9bbca638c16f014f6543b1a2e82b61f59fba9e96b_amd64RHSA-2026:0934

Fixed in:postgresql-rhel8@sha256:47e272e4d713c566ef0bd8007bd78b6d28825607ec5b50b75ffe1c2b31b50711_arm64RHSA-2026:0934

Fixed in:ephemeral-rhel8@sha256:215d1630f58ae5bfb0e1d37f39af05af76cbd76b944719cd19586836d133d744_arm64RHSA-2026:0934

openshift-serverless-1/logic-data-indexRed Hat / RHEL

Fixed in:postgresql-rhel8@sha256:5471e98d5131187f6610009cb438df50fe4fed9ab579ec83ab77da7c3bc6bb5b_ppc64leRHSA-2026:0934

Fixed in:ephemeral-rhel8@sha256:215d1630f58ae5bfb0e1d37f39af05af76cbd76b944719cd19586836d133d744_arm64RHSA-2026:0934

Fixed in:ephemeral-rhel8@sha256:5c56a7766667f767be1caf592bbffac12ec7faf11604ff8c07f74b737299396c_amd64RHSA-2026:0934

Fixed in:ephemeral-rhel8@sha256:a7bc7836315c4cd780bd7ffb107c4766002338064688ab32d867e31f71555ec0_ppc64leRHSA-2026:0934

Fixed in:postgresql-rhel8@sha256:47e272e4d713c566ef0bd8007bd78b6d28825607ec5b50b75ffe1c2b31b50711_arm64RHSA-2026:0934

Fixed in:postgresql-rhel8@sha256:325ba169cd6a0997ecef78c9bbca638c16f014f6543b1a2e82b61f59fba9e96b_amd64RHSA-2026:0934

openshift-serverless-1/logic-db-migratorRocky

Fixed in:tool-rhel8@sha256:a686bf1195c72e3f9098da8b1ae07d41a955f02060b00f1a7df61c7e6c6cb05a_ppc64leRHSA-2026:0934

Fixed in:tool-rhel8@sha256:42d92634b80d989a8fa7c643208808e7086a51250fbc97db70b85df0e060720b_amd64RHSA-2026:0934

Fixed in:tool-rhel8@sha256:3f43a82674556552e2810f752d02ac57dcc49b18aa8069b71d24509767468874_arm64RHSA-2026:0934

openshift-serverless-1/logic-db-migratorRed Hat / RHEL

Fixed in:tool-rhel8@sha256:42d92634b80d989a8fa7c643208808e7086a51250fbc97db70b85df0e060720b_amd64RHSA-2026:0934

Fixed in:tool-rhel8@sha256:a686bf1195c72e3f9098da8b1ae07d41a955f02060b00f1a7df61c7e6c6cb05a_ppc64leRHSA-2026:0934

Fixed in:tool-rhel8@sha256:3f43a82674556552e2810f752d02ac57dcc49b18aa8069b71d24509767468874_arm64RHSA-2026:0934

openshift-serverless-1/logic-jobs-serviceRed Hat / RHEL

Fixed in:postgresql-rhel8@sha256:d2040b3ca4cbbacf14a0c8140479c0539810aa62c3cce0a0cf3dcf9aad99333c_ppc64leRHSA-2026:0934

Fixed in:ephemeral-rhel8@sha256:83f82a69d50613cb57e29c6ed91517a2bd3727229606746984c2d198151bfc51_ppc64leRHSA-2026:0934

Fixed in:ephemeral-rhel8@sha256:123a0cc1671c538b32253df3ffe87b34e76d57ce591cef090ab622a259c82999_arm64RHSA-2026:0934

Fixed in:ephemeral-rhel8@sha256:fa7aa68cbc334378d04020e573d1519fad14883a79dad86bcb229bd2ff5ed210_amd64RHSA-2026:0934

Fixed in:postgresql-rhel8@sha256:a561456600b960f618b60378d4d550c05ff7e48c05905725ec0dbdc9078ce557_arm64RHSA-2026:0934

Fixed in:postgresql-rhel8@sha256:dc2d68799c2ab0324aab78d9b4317c9e3ffccbd459af2df099b8914bcc5431fa_amd64RHSA-2026:0934

openshift-serverless-1/logic-jobs-serviceRocky

Fixed in:postgresql-rhel8@sha256:a561456600b960f618b60378d4d550c05ff7e48c05905725ec0dbdc9078ce557_arm64RHSA-2026:0934

Fixed in:ephemeral-rhel8@sha256:123a0cc1671c538b32253df3ffe87b34e76d57ce591cef090ab622a259c82999_arm64RHSA-2026:0934

Fixed in:postgresql-rhel8@sha256:d2040b3ca4cbbacf14a0c8140479c0539810aa62c3cce0a0cf3dcf9aad99333c_ppc64leRHSA-2026:0934

Fixed in:postgresql-rhel8@sha256:dc2d68799c2ab0324aab78d9b4317c9e3ffccbd459af2df099b8914bcc5431fa_amd64RHSA-2026:0934

Fixed in:ephemeral-rhel8@sha256:fa7aa68cbc334378d04020e573d1519fad14883a79dad86bcb229bd2ff5ed210_amd64RHSA-2026:0934

Fixed in:ephemeral-rhel8@sha256:83f82a69d50613cb57e29c6ed91517a2bd3727229606746984c2d198151bfc51_ppc64leRHSA-2026:0934

openshift-serverless-1/logic-kn-workflow-cliRed Hat / RHEL

Fixed in:artifacts-rhel8@sha256:2b0b736c3f003557cc13e07c62153dcf693c6f023369dbe574f29167d7457993_arm64RHSA-2026:0934

Fixed in:artifacts-rhel8@sha256:0c1d73a9cdd16a603dec682dee19b1755590674f28c45d1393da227ceb528714_amd64RHSA-2026:0934

openshift-serverless-1/logic-kn-workflow-cliRocky

Fixed in:artifacts-rhel8@sha256:2b0b736c3f003557cc13e07c62153dcf693c6f023369dbe574f29167d7457993_arm64RHSA-2026:0934

Fixed in:artifacts-rhel8@sha256:0c1d73a9cdd16a603dec682dee19b1755590674f28c45d1393da227ceb528714_amd64RHSA-2026:0934

openshift-serverless-1/logic-managementRocky

Fixed in:console-rhel8@sha256:5da036d39d3bcd61641926d480ddefb02ef3f84630b7f9975a0ba0c757c5561c_amd64RHSA-2026:0934

openshift-serverless-1/logic-managementRed Hat / RHEL

Fixed in:console-rhel8@sha256:5da036d39d3bcd61641926d480ddefb02ef3f84630b7f9975a0ba0c757c5561c_amd64RHSA-2026:0934

openshift-serverless-1/logic-swfRocky

Fixed in:devmode-rhel8@sha256:3f8da099dd2d7b4d0a3d5cd7016b551fdfd7d3d32ed74757db297470a04ee9e6_arm64RHSA-2026:0934

Fixed in:builder-rhel8@sha256:8fdbbf0b40b85381aa8c5ec6f799f5856ca7a2fdf63230cadbd3a5d26ed471e3_arm64RHSA-2026:0934

Fixed in:builder-rhel8@sha256:b7a73d5750b374412a1d80318671f2f64f64fa4145b69cae4f8ae71b54519559_ppc64leRHSA-2026:0934

Fixed in:devmode-rhel8@sha256:2cd2cd2e6975fdf774ea27bfb57c7c918b1177d1b5247d91052723bf6a44dd57_ppc64leRHSA-2026:0934

Fixed in:builder-rhel8@sha256:888a3e0e145bbba887a28affa275a5b70d6d492cf2510e232db3b76d3cf45409_amd64RHSA-2026:0934

Fixed in:devmode-rhel8@sha256:c43f449ced50cfc662e9cf17dfa9af697d7fb6c816cc7849a68a0f5b5298d14c_amd64RHSA-2026:0934

openshift-serverless-1/logic-swfRed Hat / RHEL

Fixed in:builder-rhel8@sha256:8fdbbf0b40b85381aa8c5ec6f799f5856ca7a2fdf63230cadbd3a5d26ed471e3_arm64RHSA-2026:0934

Fixed in:devmode-rhel8@sha256:3f8da099dd2d7b4d0a3d5cd7016b551fdfd7d3d32ed74757db297470a04ee9e6_arm64RHSA-2026:0934

Fixed in:builder-rhel8@sha256:b7a73d5750b374412a1d80318671f2f64f64fa4145b69cae4f8ae71b54519559_ppc64leRHSA-2026:0934

Fixed in:devmode-rhel8@sha256:2cd2cd2e6975fdf774ea27bfb57c7c918b1177d1b5247d91052723bf6a44dd57_ppc64leRHSA-2026:0934

Fixed in:builder-rhel8@sha256:888a3e0e145bbba887a28affa275a5b70d6d492cf2510e232db3b76d3cf45409_amd64RHSA-2026:0934

Fixed in:devmode-rhel8@sha256:c43f449ced50cfc662e9cf17dfa9af697d7fb6c816cc7849a68a0f5b5298d14c_amd64RHSA-2026:0934

python3-libxml2Rocky

Fixed in:0:2.12.5-7.el10_0RHSA-2025:10630

Fixed in:0:2.9.7-16.el8_8.9RHSA-2025:12239

Fixed in:0:2.9.7-13.el8_6.10RHSA-2025:12098

Fixed in:0:2.9.7-9.el8_4.6RHSA-2025:12241

python3-libxml2Red Hat / RHEL

Fixed in:0:2.12.5-7.el10_0RHSA-2025:10630

Fixed in:0:2.9.7-9.el8_2.3RHSA-2025:12237

Fixed in:0:2.9.7-13.el8_6.10RHSA-2025:12098

python3-libxml2-debuginfoRocky

Fixed in:0:2.12.5-7.el10_0RHSA-2025:10630

Fixed in:0:2.9.7-9.el8_2.3RHSA-2025:12237

Fixed in:0:2.9.7-21.el8_10.1RHSA-2025:10698

Fixed in:0:2.9.7-16.el8_8.9RHSA-2025:12239

Fixed in:0:2.9.7-21.el8_10.1RHSA-2025:10698

This vulnerability affects an unusually large number of packages. The highest-confidence fixes are shown above; the full list is longer. Check the referenced advisories for complete coverage.

TridentStack Control can deploy fixes like this automatically across your Windows, macOS, and Linux fleet. See how it works

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityNone

IntegrityHigh

AvailabilityHigh

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H

Exploit Intelligence

0.73%probability of exploitation in 30 days

52ndpercentile

Moderate risk: more likely to be exploited than 52% of all known CVEs.

References

Related Vulnerabilities

Other CWE-825 vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2024-23638	Medium	6.5	60%	-	Fix
CVE-2026-33526	High	7.5	8.9%	-	Fix
CVE-2019-15691	High	7.2	4.7%	-	Fix
CVE-2023-48316	Critical	9.8	4.3%	-	Fix
CVE-2023-48315	High	8.8	3.9%	-	Fix
CVE-2026-45447	High	8.8	3.6%	-	Fix

Common questions

How do I fix CVE-2025-49794?

Published advisories record a fix for 52 affected products. The "How to fix" section on this page lists the fixed version and source advisory for each one, so apply the entry matching what you actually run.

Is CVE-2025-49794 being actively exploited?

Not that we know of. CVE-2025-49794 is not in the CISA Known Exploited Vulnerabilities catalog. Its EPSS score of 0.73% is the estimated probability that it will be exploited in the next 30 days. That is higher than 52% of all scored CVEs.

How severe is CVE-2025-49794?

CVE-2025-49794 has a CVSS v3 base score of 9.1, rated critical. CVSS rates the technical impact if the vulnerability is exploited, not how likely that is, so weigh it alongside the exploit-prediction score when you decide what to patch first.

What does CVE-2025-49794 affect?

Published advisories record a fix for libxml2 (Debian), libxml2 (Rocky), libxml2 (Red Hat / RHEL), libxml2-debuginfo (Red Hat / RHEL), and 48 more. Only products with a sourced advisory are listed, so treat this as what we can cite rather than a complete inventory.

Embed a live status badge for CVE-2025-49794

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-08-24.