Secuno
ENNL
Book demo

CVE-2026-48021

9.1 CRITICALEPSS 0.19%
  1. Published24 Jul 2026

Description

In epa4all, prior to version 2026-05-20, an attacker who can intercept the TLS connection between epa4all and the ePA backend can complete the VAU handshake with attacker-controlled keys and obtain the session encryption keys. All inner HTTP traffic (patient consent decisions, medication data, document operations, authorization tokens, and entitlement queries) becomes readable and modifiable. The attacker can also inject arbitrary requests through the hijacked channel. This issue has been patched in version 2026-05-20.

CVSS 3.1 breakdown

Attack vectorNetwork
Attack complexityLow
Privileges requiredNone
User interactionNone
ScopeUnchanged
ConfidentialityHigh
IntegrityHigh
AvailabilityNone
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

Remediation

No fixed version is recorded in the NVD data. Check the vendor advisory for the latest guidance.

References

Related CVEs

Recent high-severity vulnerabilities sharing a weakness type.

CVE-2026-1089719.6
A flaw has been found in D-Link DCS-930L B1.08B4. This impacts the function mpfd_decode…
CVE-2026-1093998.1
SWUpdate through 2026.05.1 contains an improper certificate validation vulnerability in…
CVE-2026-864059.8
Improper verification of cryptographic signature vulnerability in Sipay Electronic…
CVE-2026-855319.8
Improper verification of cryptographic signature vulnerability in Sipay Electronic…
CVE-2026-9620710.0
Improper certificate validation in Microsoft Partner Center allows an unauthorized…
CVE-2026-1077229.8
fast-jwt provides fast JSON Web Token (JWT) implementation. From 6.2.0 until 6.3.0,…

Frequently asked

Is CVE-2026-48021 being actively exploited?

CVE-2026-48021 is not in the CISA KEV catalog. Its EPSS exploit probability is 0.19%.

How severe is CVE-2026-48021?

CVE-2026-48021 has a CVSS 3.1 base score of 9.1, rated critical. EPSS estimates a 0.19% probability of exploitation.

How do I fix CVE-2026-48021?

Apply the vendor's patch or advisory guidance, then verify no affected versions remain across your devices.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2026-48021 against the real software inventory on every managed device, every day. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

See how prioritisation worksBook a demo

Get Patch this first every Monday

Five vulnerabilities that matter this week, ranked on real exploitation. Plain language, one email, no spam.

You can unsubscribe with one click from every issue. We handle your details as described in our privacy policy.

Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.