Is there a public exploit for CVE-2025-48997?

No public exploit for CVE-2025-48997 was found in Exploit-DB, Metasploit, Nuclei templates or public proof-of-concept repositories. That is an absence of evidence rather than proof that none exists.

How severe is CVE-2025-48997?

CVE-2025-48997 scores CVSS 8.7 (v4.0), rated high. EPSS puts the chance of exploitation in the next 30 days at 0.48%.

What does CVE-2025-48997 affect?

CVE-2025-48997 affects expressjs multer.

8.7 High

Multer is a node.js middleware for handling multipart/form-data.

CVE-2025-48997

Impact A vulnerability in Multer versions >=1.4.4-lts.1, <2.0.1 allows an attacker to trigger a Denial of Service (DoS) by sending an upload file request with an empty string field name. This request causes an unhandled exception, leading to a crash of the process. Patches Users should upgrade to 2.0.1 Workarounds None References https://github.com/expressjs/multer/commit/35a3272b611945155e046dd5cef11088587635e9 https://github.com/expressjs/multer/issues/1233 https://github.com/expressjs/multer/pull/1256

Assessment

CVSS: 8.7 (v4.0)
Severity: High
EPSS: 0.48% chance of exploitation in the next 30 days
Known exploited: Not listed in CISA KEV
Exploit availability: Nothing found in Exploit-DB, Metasploit, Nuclei or public PoC repositories
Published: 3 June 2025
Last updated: 17 June 2026
Affected: expressjs · multer · multer
Weakness: CWE-248
Assigner: security-advisories@github.com

CVSS vectorCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

At the source

References

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