7.5

CVE-2025-47944: expressjs multer Uncaught Exception

CVSS: 7.5v3.1HighDeferred
AliasesCGA-2qhf-wf7m-fp4fCGA-c5m8-qwmm-hvr5GHSA-4pg4-qvpc-4q3h
Published 19-05-2025Last modified 20-05-2025
Open JSON

Vulnerability summary

CVE-2025-47944 is a high (CVSS 7.5) Uncaught Exception vulnerability in expressjs multer. EPSS estimates a 0.81% chance of exploitation in the next 30 days, higher than 56.2% of scored vulnerabilities.

Overall risk
30/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.5/10
010
High · v3.1 (CVE.org)
EPSS score
0.81%
0%100%
Low · +0.01 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 0 · Related 2
CGA-3HC9-42MH-3H77CGA-3PFW-H9J7-554Q

Timeline

  1. 19-05-2025
    PublishedVulnerability first disclosed.
  2. 20-05-2025
    Last modifiedVulnerability information updated.

Description

Multer is a node.js middleware for handling `multipart/form-data`. A vulnerability that is present starting in version 1.4.4-lts.1 and prior to version 2.0.0 allows an attacker to trigger a Denial of Service (DoS) by sending a malformed multi-part upload request. This request causes an unhandled exception, leading to a crash of the process. Users should upgrade to version 2.0.0 to receive a patch. No known workarounds are available.

CVSS metrics

5 scores · 5 sources · 1 version

EPSS trend

Probability

0.81%

Chance of exploitation in the next 30 days

Percentile

56%

Versus all other CVEs

30-day change

+0.01 pp

From 0.80% on 19-09-2026

19-09-202619-10-2026
EPSS score
0.81%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Chainguard1 product
  • grafana-image-renderer< 3.12.6-r0
Expressjs1 product
  • multer≥ 1.4.4-lts.1, < 2.0.0
Npm1 product
  • multer≥ 1.4.4-lts.1, < 2.0.0
Wolfi1 product
  • grafana-image-renderer< 3.12.6-r0

4 vendors · 4 products

References

6 links