Is CVE-2025-3032 in the CISA KEV catalog?

No. CVE-2025-3032 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2025-3032?

CVE-2025-3032 has a CVSS v3 base score of 7.4 (HIGH).

What is the EPSS score for CVE-2025-3032?

CVE-2025-3032 has an EPSS score of 0.35% (27th percentile), estimating the probability of exploitation in the next 30 days.

CVE & CISA-KEV Catalog

CVE-2025-3032

HIGH

7.4

CVSS v3

NVD

Description

Leaking of file descriptors from the fork server to web content processes could allow for privilege escalation attacks. This vulnerability was fixed in Firefox 137 and Thunderbird 137.

CWE-403

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityHigh

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityNone

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N

Exploit Intelligence

0.35%probability of exploitation in 30 days

27thpercentile

Low risk: more likely to be exploited than 27% of all known CVEs.

References

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-04-13.