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TI-2025-31731 Aliases CVE-2025-49795GHSA-gg7j-w83p-fxr9

Libxml: null pointer dereference leads to denial of service (dos)

Priority MEDIUM 40CWE-825Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
None · None · High
Fix status
Partial Red Hat: 5 fixed, 1 without a fix

Attack profile from CVSS 3.1 · CNA. Fix status from CNA and Red Hat.

Summary

A NULL pointer dereference vulnerability was found in libxml2 when processing XPath XML expressions. This flaw allows an attacker to craft a malicious XML input to libxml2, leading to a denial of service.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00592 48th percentileScored 2026-11-07
Fix Partial libxml2 (GNOME): 2.14.5Red Hat: 3 advisoriesRed Hat: 5 fixed, 1 without a fix

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
Yes
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
GNOMElibxml22.10.0 to before 2.14.52.14.5Patch availableCNA
Red HatRed Hat Enterprise Linux 10—2.12.5-7.el10_0Patch availableCNA
Red HatRed Hat JBoss Core Services 2.4.62.SP2——Not affectedCNA
Red HatRed Hat Hardened Images—2.15.2-0.3.hum1Patch availableCNA
Red HatRed Hat Enterprise Linux 6——No fix listedCNA
Red HatRed Hat Enterprise Linux 7——Not affectedCNA
Red HatRed Hat Enterprise Linux 8——Not affectedCNA
Red HatRed Hat Enterprise Linux 9——Not affectedCNA
  • libxml2 VendorGNOME Affected 2.10.0 to before 2.14.5 Fixed in 2.14.5 Patch available CNA
  • Red Hat Enterprise Linux 10 VendorRed Hat Affected — Fixed in 2.12.5-7.el10_0 Patch available CNA
  • Red Hat JBoss Core Services 2.4.62.SP2 VendorRed Hat Affected — Fixed in — Not affected CNA
  • Red Hat Hardened Images VendorRed Hat Affected — Fixed in 2.15.2-0.3.hum1 Patch available CNA
  • Red Hat Enterprise Linux 6 VendorRed Hat Affected — Fixed in — No fix listed CNA
  • Red Hat Enterprise Linux 7 VendorRed Hat Affected — Fixed in — Not affected CNA
  • Red Hat Enterprise Linux 8 VendorRed Hat Affected — Fixed in — Not affected CNA
  • Red Hat Enterprise Linux 9 VendorRed Hat Affected — Fixed in — Not affected CNA

CPE names CNA · 7

CPEVersionsRoleVendor
cpe:/o:redhat:enterprise_linux:10.010.0—Red Hat
cpe:/a:redhat:jboss_core_services:1.01.0—Red Hat
cpe:/a:redhat:hummingbird:11—Red Hat
cpe:/o:redhat:rhel_els:66—Red Hat
cpe:/o:redhat:rhel_els:77—Red Hat
cpe:/a:redhat:enterprise_linux:88—Red Hat
cpe:/a:redhat:enterprise_linux:99—Red Hat
  • cpe:/o:redhat:enterprise_linux:10.0 Versions 10.0 — ·Red Hat
  • cpe:/a:redhat:jboss_core_services:1.0 Versions 1.0 — ·Red Hat
  • cpe:/a:redhat:hummingbird:1 Versions 1 — ·Red Hat
  • cpe:/o:redhat:rhel_els:6 Versions 6 — ·Red Hat
  • cpe:/o:redhat:rhel_els:7 Versions 7 — ·Red Hat
  • cpe:/a:redhat:enterprise_linux:8 Versions 8 — ·Red Hat
  • cpe:/a:redhat:enterprise_linux:9 Versions 9 — ·Red Hat

Remediation

  • Fix · CNA libxml2 (GNOME) Fixed in 2.14.5

Red Hat 3 advisories

  • RHSA-2026:7519 Released 2026-04-10 · Red Hat rating Important
    Red Hat Hardened Images RPMs bug fix and enhancement update
    • Red Hat Hardened Images libxml2-16-2.15.2-0.3.hum1@aarch64, libxml2-16-2.15.2-0.3.hum1@x86_64, libxml2-2.15.2-0.3.hum1@aarch64 +8
  • RHSA-2025:19020 Released 2025-10-27 · Red Hat rating Important
    Red Hat JBoss Core Services Apache HTTP Server 2.4.62 SP2 security update
    • Red Hat JBoss Core Services 2.4.62.SP2
  • RHSA-2025:10630 Released 2025-07-08 · Red Hat rating Important
    libxml2 security update
    • Red Hat Enterprise Linux AppStream (v. 10) libxml2-devel-2.12.5-7.el10_0
    • Red Hat Enterprise Linux BaseOS (v. 10) libxml2-2.12.5-7.el10_0, python3-libxml2-2.12.5-7.el10_0
    • Red Hat Enterprise Linux CodeReady Linux Builder (v. 10) libxml2-static-2.12.5-7.el10_0

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Advisory ·

    Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 6 and 4 more products — RHSA-2025:10630

    4 records Highest priority Priority HIGH 1 HIGH, 3 MEDIUM

    Other records, highest priority first

    • TI-2025-05441 Libxml2: integer overflow in xmlbuildqname() leads to stack buffer overflow in libxml2Priority HIGH 72
    • TI-2025-31732 Libxml: type confusion leads to denial of service (dos)Priority MEDIUM 48
    • TI-2025-31730 Libxml: heap use after free (uaf) leads to denial of service (dos)Priority MEDIUM 47
    Show all 4 records → Advisory →
  • Advisory ·

    Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 6 and 4 more products — RHSA-2025:19020

    4 records Highest priority Priority HIGH 1 HIGH, 3 MEDIUM

    Other records, highest priority first

    • TI-2025-05441 Libxml2: integer overflow in xmlbuildqname() leads to stack buffer overflow in libxml2Priority HIGH 72
    • TI-2025-31732 Libxml: type confusion leads to denial of service (dos)Priority MEDIUM 48
    • TI-2025-31730 Libxml: heap use after free (uaf) leads to denial of service (dos)Priority MEDIUM 47
    Show all 4 records → Advisory →

Vendor assessments

Red Hat

Red Hat rating: Important. Red Hat's page for this CVE →

ProductStatusPlan or fix
Red Hat Enterprise Linux 6AffectedNo fix planned: Out of support scope
Red Hat Enterprise Linux AppStream (v. 10)Fixed RHSA-2025:10630
Red Hat Enterprise Linux BaseOS (v. 10)Fixed RHSA-2025:10630
Red Hat Enterprise Linux CodeReady Linux Builder (v. 10)Fixed RHSA-2025:10630
Red Hat Hardened ImagesFixed RHSA-2026:7519
Red Hat JBoss Core Services 2.4.62.SP2Fixed RHSA-2025:19020
Not affected: 3 products
  • Red Hat Enterprise Linux 7
  • Red Hat Enterprise Linux 8
  • Red Hat Enterprise Linux 9

Timeline

  1. 2026-10-02 Threatist record created from CVE-2025-49795
  2. 2026-10-03 Alias added: GHSA-gg7j-w83p-fxr9
  3. 2026-10-09 Fix available: RHSA-2025:19020 · Red Hat
  4. 2026-10-12 Affected versions changed · CNA
  5. 2026-10-13 Fix available: Red Hat JBoss Core Services 2.4.62.SP2 · Red Hat

References

Advisory 3

Other 3

  • TI-2023-23091 Gnome-maps: gnome maps is vulnerable to a code injection attack (similar to xss) via its service.json CVSS 3.1CRITICAL 9.8
  • TI-2026-41775 Glib: off-by-one error in glib/gkeyfile.c via "g_key_file_get_locale_string_list" CVSS 3.1HIGH 8.6
  • TI-2026-41772 Glib: out-of-bounds read in glib/gdatetime.c:g_date_time_get_ymd via invalid gdatetime CVSS 3.1HIGH 7.5
  • TI-2026-03716 Libsoup: libsoup: denial of service via use-after-free in http/2 server CVSS 3.1HIGH 7.5
  • TI-2024-28393 Integer overflow in GNOME G Structured File Library CVSS 3.1HIGH 8.4
  • TI-2024-24253 Integer overflow in GNOME G Structured File Library CVSS 3.1HIGH 8.4
See all 402 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences