Dashboard / CVE-2026-126423

CVE-2026-126423

MEDIUM
MEDIUM Priority: 0.02 BB Relevance: 61/100
Published: 2026-11-13 Modified: 2026-11-13 First seen: 2026-11-13 Status: active

Attack Surface

Network Low Complexity No Interaction

CVSS Vector Breakdown

AV: Network
AC: Low
PR: Low
UI: None
AT: None
VC: None
VI: None
VA: Low

Description

OpenEMR before 8.5.0 contains a denial of service vulnerability in four ZIP upload paths that read uncompressed entries into memory without size or ratio checks. Authenticated billing or Carecoordination users can upload highly compressed ZIP archives to exhaust PHP memory and worker pools, making OpenEMR unavailable.

Weakness Classification (1)

Affected Software (2)

VendorProductVersion
openemr openemr 0 < 8.5.0
openemr openemr 0 < 8.5.0

References & Advisories (2)

Bug Bounty Relevance

61 / 100
✓ Network accessible
✓ Low complexity
✓ No user interaction

CVSS Score

5.3 / 10.0 v4.0
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N

EPSS — Exploitation Probability

0.35%
Raw Score 0.003470
Percentile 28.7%
Date 2026-11-14

EPSS Trend

2026-11-14
0.00347
2026-11-13
0.00373

Intelligence Sources

mitre ref →
nvd ref →

External Links