How severe is CVE-2022-49043?

CVE-2022-49043 has a CVSS 3.x base score of 8.1, rated high severity. It is exploitable over local access with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2022-49043 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (17th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2022-49043?

CVE-2022-49043 affects Xmlsoft Libxml2. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2022-49043?

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-2022-49043 have an EU (EUVD) identifier?

Yes. CVE-2022-49043 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2022-53920.

When was CVE-2022-49043 published?

CVE-2022-49043 was published on 2025-01-26 and last updated on 2026-06-17.

CVE-2022-49043

CVE-2022-49043 is a high-severity vulnerability in Xmlsoft Libxml2 with a CVSS 3.x base score of 8.1. 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-416.

Key facts

Severity: High (CVSS 3.x base score 8.1)
EPSS exploit prediction: 0% (17th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2022-53920
Weakness: CWE-416
Affected product: Xmlsoft Libxml2
Published: 2025-01-26
Last modified: 2026-06-17

Description

xmlXIncludeAddNode in xinclude.c in libxml2 before 2.11.0 has a use-after-free.

Frequently asked questions

What is CVE-2022-49043?: xmlXIncludeAddNode in xinclude.c in libxml2 before 2.11.0 has a use-after-free.
How severe is CVE-2022-49043?: CVE-2022-49043 has a CVSS 3.x base score of 8.1, rated high severity. It is exploitable over local access with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2022-49043 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (17th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2022-49043?: CVE-2022-49043 affects Xmlsoft Libxml2. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2022-49043?: 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-2022-49043 have an EU (EUVD) identifier?: Yes. CVE-2022-49043 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2022-53920.
When was CVE-2022-49043 published?: CVE-2022-49043 was published on 2025-01-26 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:xmlsoft:libxml2:*:*:*:*:*:*:*:*

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CVE-2025-24085 — Critical (CVSS 10.0): A use after free issue was addressed with improved memory management. This issue is fixed in iOS 18.3 and iPadOS 18.3,…
CVE-2024-43102 — Critical (CVSS 10.0): Concurrent removals of certain anonymous shared memory mappings by using the UMTX_SHM_DESTROY sub-request of…
CVE-2021-32495 — Critical (CVSS 10.0): Radare2 has a use-after-free vulnerability in pyc parser's get_none_object function. Attacker can read freed memory…

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