How severe is CVE-2025-71329?

CVE-2025-71329 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-2025-71329 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (35th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-71329?

CVE-2025-71329 affects Image-size. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-71329?

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-2025-71329 have an EU (EUVD) identifier?

Yes. CVE-2025-71329 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-210106.

When was CVE-2025-71329 published?

CVE-2025-71329 was published on 2026-06-10 and last updated on 2026-06-17.

CVE-2025-71329

CVE-2025-71329 is a high-severity vulnerability in Image-size 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-835.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v4: 8.7
EPSS exploit prediction: 0% (35th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-210106
Weakness: CWE-835
Affected product: Image-size
Published: 2026-06-10
Last modified: 2026-06-17

Description

image-size through 2.0.2 contains a denial of service vulnerability that allows remote attackers to permanently block the Node.js event loop by supplying a specially crafted image buffer with a zero-valued size field in a recognized box-type. Attackers can trigger an infinite loop in the JXL or HEIF image parsers by providing a crafted image containing a box with a size of zero, causing the offset to never advance and permanently hanging the application.

Frequently asked questions

What is CVE-2025-71329?: image-size through 2.0.2 contains a denial of service vulnerability that allows remote attackers to permanently block the Node.js event loop by supplying a specially crafted image buffer with a zero-valued size field in a recognized box-type. Attackers can trigger an infinite loop in the JXL or HEIF image parsers by providing a crafted image containing a box with a size of zero, causing the offset to never advance and permanently hanging the application.
How severe is CVE-2025-71329?: CVE-2025-71329 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-2025-71329 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (35th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-71329?: CVE-2025-71329 affects Image-size. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-71329?: 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-2025-71329 have an EU (EUVD) identifier?: Yes. CVE-2025-71329 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-210106.
When was CVE-2025-71329 published?: CVE-2025-71329 was published on 2026-06-10 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:image-size:image-size:*:*:*:*:*:*:*:*

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