How severe is CVE-2025-49795?

CVE-2025-49795 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2025-49795 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (42nd percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2025-49795?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2025-49795 have an EU (EUVD) identifier?

Yes. CVE-2025-49795 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-18416.

When was CVE-2025-49795 published?

CVE-2025-49795 was published on 2025-06-16 and last updated on 2026-07-07.

CVE-2025-49795

CVE-2025-49795 is a high-severity vulnerability with a CVSS 3.x base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-825.

Key facts

Severity: High (CVSS 3.x base score 7.5)
EPSS exploit prediction: 1% (42nd percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-18416
Weakness: CWE-825
Published: 2025-06-16
Last modified: 2026-07-07

Description

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.

Frequently asked questions

What is CVE-2025-49795?: 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.
How severe is CVE-2025-49795?: CVE-2025-49795 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2025-49795 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (42nd percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2025-49795?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2025-49795 have an EU (EUVD) identifier?: Yes. CVE-2025-49795 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-18416.
When was CVE-2025-49795 published?: CVE-2025-49795 was published on 2025-06-16 and last updated on 2026-07-07.

References

Other CWE-825 vulnerabilities

CVE-2025-49794 — Critical (CVSS 9.1): A use-after-free vulnerability was found in libxml2. This issue occurs when parsing XPath elements under certain…
CVE-2026-17523 — High (CVSS 7.8): A flaw was found in the Linux kernel in net/can/bcm.c in can: bcm, where an unprivileged local user can exploit this…
CVE-2026-46176 — High (CVSS 7.8): In the Linux kernel, the following vulnerability has been resolved: RDMA/mlx5: Fix error path fall-through in…
CVE-2026-34001 — High (CVSS 7.8): A flaw was found in the X.Org X server. This use-after-free vulnerability occurs in the XSYNC fence triggering logic,…
CVE-2026-8854 — High (CVSS 7.5): IBM HTTP Server 8.5, and 9.0 is vulnerable to denial of service via the optional module mod_mem_cache.
CVE-2023-20212 — High (CVSS 7.5): A vulnerability in the AutoIt module of ClamAV could allow an unauthenticated, remote attacker to cause a denial of…

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