CVE-2025-59375: exploitation status and patch state

CVE-2025-59375 · CVSS 7.5 HIGH · EPSS 1%

libexpat in Expat before 2.7.2 allows attackers to trigger large dynamic memory allocations via a small document that is submitted for parsing.

Is CVE-2025-59375 exploited?

• Not in the CISA KEV catalog.
• EPSS puts exploitation in the next 30 days at 1%.
• Public exploit code: none found in monitored sources.

Which products and versions are affected?

No affected package list recorded here yet.

Is there a patch?

No patch identifier recorded here yet.

What PlainSec published about CVE-2025-59375

• Firefox ESR Update Fixes 36 Security Flaws (2026-03-30)
• Hitachi Energy RTU500 and REB500 Flaws: Info Leak, DoS (2026-03-04)

Primary sources

• NVD record

What this record does not say

• No affected package data.
• No patch identifier.

KEV and EPSS are re-checked daily. Record last updated 2026-08-11.