Highest advisory severityCritical 2 vendors · 2 advisories

CVE-2025-49796: Libxml2 Vulnerability in NetApp Products

Not in the CISA KEV catalog. Critical advisory severity (CVSS 9.1, NetApp).

Compare the source-linked records below. Ratings and product/version details belong to each advisory; they are not a single CVE-wide score or proof that every listed product is affected. How VulniPulse collects and checks evidence.

NVD detail CVE.org

CVE-2025-49796 key facts

CISA KEV: Not listed (catalog checked Nov 10, 2026)
Highest advisory severity: Critical
CVSS base score: 9.1 (NetApp), 9.1 (Red Hat)
CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H (Red Hat)
Weakness: CWE-125
Fixed releases: NetApp: Active IQ Unified Manager for VMware vSphere: 9.18, NetApp Manageability SDK: 9.8P11
Red Hat: libxml2-0:2.12.5-7.el10_0, libxml2-0:2.9.1-6.el7_9.10, libxml2-0:2.9.7-21.el8_10.1, libxml2-0:2.9.7-9.el8_2.3, libxml2-0:2.9.7-9.el8_4.6, libxml2-0:2.9.7-13.el8_6.10 and 44 more in the advisory
Vendor advisories: 2 from NetApp, Red Hat
VulniPulse record: Published Jul 19, 2026 · Updated Oct 9, 2026

Scores, vectors, weaknesses and fixed releases are quoted from vendor advisories that cover only CVE-2025-49796; bulletin-wide values are not repeated here.

Is CVE-2025-49796 exploited?

No exploitation is reported in the sources VulniPulse tracks: CVE-2025-49796 is not in the CISA KEV catalog (checked Nov 10, 2026) and no tracked advisory for it reports exploitation. That is not proof the vulnerability cannot be exploited.

How do I fix CVE-2025-49796?

Upgrade to a fixed release named by the vendor:

NetApp: Active IQ Unified Manager for VMware vSphere: 9.18, NetApp Manageability SDK: 9.8P11
Red Hat: libxml2-0:2.12.5-7.el10_0, libxml2-0:2.9.1-6.el7_9.10, libxml2-0:2.9.7-21.el8_10.1, libxml2-0:2.9.7-9.el8_2.3, libxml2-0:2.9.7-9.el8_4.6, libxml2-0:2.9.7-13.el8_6.10

Update affected NetApp products to a fixed release: Active IQ Unified Manager for VMware vSphere: 9.18, NetApp Manageability SDK: 9.8P11. (NetApp)
SnapManager for Hyper-V has no planned fix; migrate to a supported release or product and consult NetApp's end-of-support notice. (NetApp)
There's no available mitigation other than to avoid processing untrusted XML documents if the user is unable/unwilling to update the library. (Red Hat)

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Vendor advisory comparison

NetApp

1 advisory

Advisory severityCritical9.1
Critical [CVE-2025-49796] Libxml2 Vulnerability in NetApp Products
NTAP-20250718-0004Source published Jul 18, 2025Source updated Oct 9, 2026
Multiple NetApp products incorporate libxml2. Libxml2 versions through 2.14.4 are susceptible to a vulnerability which when successfully exploited could lead to addition or modification of data or Denial of Service (DoS). Affected products: Active IQ Unified Manager for VMware vSphere, NetApp Manageability SDK, NetApp SolidFire & HCI Management Node, NetApp SolidFire & HCI Storage Node (Element Software), SnapManager for Hyper-V. NetApp reports that one or more additional products remain under investigation; review the canonical advisory for current status. NetApp states there is no workaround available at this time.
Affected products in this advisory
Active IQ Unified Manager for VMware vSphere
NetApp Manageability SDK
NetApp SolidFire & HCI Management Node
NetApp SolidFire & HCI Storage Node (Element Software)
1 more entries in the full advisory.
Source-reported affected versions
2.14.4
Source-reported fixed versions
Active IQ Unified Manager for VMware vSphere: 9.18
NetApp Manageability SDK: 9.8P11
Mitigation guidance
Update affected NetApp products to a fixed release: Active IQ Unified Manager for VMware vSphere: 9.18, NetApp Manageability SDK: 9.8P11.
SnapManager for Hyper-V has no planned fix; migrate to a supported release or product and consult NetApp's end-of-support notice.
Full advisory and evidence Open source bulletin

Red Hat

1 advisory

Advisory severityCritical9.1
Critical [CVE-2025-49796] type confusion leads to denial of service (dos)
CVE-2025-49796Source published Jun 16, 2025Source updated Jun 11, 2025
A vulnerability was found in libxml2. Processing certain sch:name elements from the input XML file can trigger a memory corruption issue. This flaw allows an attacker to craft a malicious XML input file that can lead libxml to crash, resulting in a denial of service or other possible undefined behavior due to sensitive data being corrupted in memory. The Red Hat Product Security team has evaluated this vulnerability as having an Important security impact, as libxml can be used to parse XML from the network depending on how the program consumes it using the library. Additionally, although the initial report shows a crash due to invalid memory access (A:H), other undefined issues that can present data integrity due to the application overwriting sensitive data are not discarded (I:H). Red…
Affected products in this advisory
Red Hat Enterprise Linux 10
Red Hat Enterprise Linux 7 Extended Lifecycle Support
Red Hat Enterprise Linux 8.2 Advanced Update Support
Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support
29 more entries in the full advisory.
Source-reported affected versions
Affected-version details not available in this record.
Source-reported fixed versions
libxml2-0:2.12.5-7.el10_0
libxml2-0:2.9.1-6.el7_9.10
libxml2-0:2.9.7-21.el8_10.1
libxml2-0:2.9.7-9.el8_2.3
46 more entries in the full advisory.
Mitigation guidance
There's no available mitigation other than to avoid processing untrusted XML documents if the user is unable/unwilling to update the library.
Full advisory and evidence Open source bulletin

All NetApp advisories

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