How severe is CVE-2025-56226?

CVE-2025-56226 has a CVSS 3.x base score of 5.3, rated medium 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 low.

Is CVE-2025-56226 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (23rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-56226?

CVE-2025-56226 affects Libsndfile Project Libsndfile. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-56226?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2025-56226 have an EU (EUVD) identifier?

Yes. CVE-2025-56226 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-2514.

When was CVE-2025-56226 published?

CVE-2025-56226 was published on 2026-01-14 and last updated on 2026-06-17.

CVE-2025-56226

Q: What is CVE-2025-56226?

Libsndfile <=1.2.2 contains a memory leak vulnerability in the mpeg_l3_encoder_init() function within the mpeg_l3_encode.c file.

CVE-2025-56226 is a medium-severity vulnerability in Libsndfile Project Libsndfile with a CVSS 3.x base score of 5.3. 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-401.

Key facts

Severity: Medium (CVSS 3.x base score 5.3)
EPSS exploit prediction: 0% (23rd percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-2514
Weakness: CWE-401
Affected product: Libsndfile Project Libsndfile
Published: 2026-01-14
Last modified: 2026-06-17

Description

Libsndfile <=1.2.2 contains a memory leak vulnerability in the mpeg_l3_encoder_init() function within the mpeg_l3_encode.c file.

Frequently asked questions

What is CVE-2025-56226?: Libsndfile <=1.2.2 contains a memory leak vulnerability in the mpeg_l3_encoder_init() function within the mpeg_l3_encode.c file.
How severe is CVE-2025-56226?: CVE-2025-56226 has a CVSS 3.x base score of 5.3, rated medium 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 low.
Is CVE-2025-56226 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (23rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-56226?: CVE-2025-56226 affects Libsndfile Project Libsndfile. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-56226?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2025-56226 have an EU (EUVD) identifier?: Yes. CVE-2025-56226 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-2514.
When was CVE-2025-56226 published?: CVE-2025-56226 was published on 2026-01-14 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:libsndfile_project:libsndfile:*:*:*:*:*:*:*:*

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