How severe is CVE-2025-70103?

CVE-2025-70103 has a CVSS 3.x base score of 7.3, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability low.

Is CVE-2025-70103 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (29th percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2025-70103?

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-2025-70103 have an EU (EUVD) identifier?

Yes. CVE-2025-70103 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-209978.

When was CVE-2025-70103 published?

CVE-2025-70103 was published on 2026-05-27 and last updated on 2026-06-17.

CVE-2025-70103

CVE-2025-70103 is a high-severity vulnerability with a CVSS 3.x base score of 7.3. 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-122.

Key facts

Severity: High (CVSS 3.x base score 7.3)
EPSS exploit prediction: 0% (29th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-209978
Weakness: CWE-122
Published: 2026-05-27
Last modified: 2026-06-17

Description

Heap buffer overflow vulnerability in libjxl 0.12.0 via crafted PBM images to the jxl::extras::DecodeImagePNM function in file lib/extras/dec/pnm.cc.

Frequently asked questions

What is CVE-2025-70103?: Heap buffer overflow vulnerability in libjxl 0.12.0 via crafted PBM images to the jxl::extras::DecodeImagePNM function in file lib/extras/dec/pnm.cc.
How severe is CVE-2025-70103?: CVE-2025-70103 has a CVSS 3.x base score of 7.3, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability low.
Is CVE-2025-70103 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (29th percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2025-70103?: 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-2025-70103 have an EU (EUVD) identifier?: Yes. CVE-2025-70103 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-209978.
When was CVE-2025-70103 published?: CVE-2025-70103 was published on 2026-05-27 and last updated on 2026-06-17.

References

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