CVE-2025-2263: During login to the web server in "Sante PACS Server.exe", OpenSSL function EVP_DecryptUpdate is called to dec

This week

CRITICAL 9.8REMOTEWATCHLISTDOWNGRADE

CVE-2025-2263 is a critical-severity flaw (CVSS 9.8) affecting sante pacs server. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

During login to the web server in "Sante PACS Server.exe", OpenSSL function EVP_DecryptUpdate is called to decrypt the username and password. A fixed 0x80-byte stack-based buffer is passed to the function as the output buffer. A stack-based buffer overflow exists if a long encrypted username or password is supplied by an unauthenticated remote attacker.

Why this priority

Critical severity
Public exploit reference
CISA SSVC: automatable with total technical impact
Remotely exploitable, no login, no user action
On your watchlist

A fixed release or distro patch exists.

Risk facts

CVSS score	9.8 (Critical)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	1.2% (top 32%)
CISA exploited list	No
Weakness	CWE-121, CWE-787
Published	2025-03-13
Last modified	2026-06-17

Publisher (CNA): Tenable Network Security, Inc. · Vendor: santesoft

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2025-03-13 17:15 UTCPublished CVE record published
2026-06-17 09:06 UTCUpdated Record last modified

santesoft sante pacs server DOWNGRADE

Affected: 4.1.0

Fixed in: no fixed release known

Safe to downgrade to: a release before 4.1.0

1. Check installed version

apt-cache policy sante-pacs-server || rpm -q sante-pacs-server || sante-pacs-server --version

2. No fixed release: DOWNGRADE to a release before 4.1.0 (Debian / Ubuntu)

apt-cache madison sante-pacs-server sudo apt install sante-pacs-server=<VERSION_BEFORE_4.1.0> sudo apt-mark hold sante-pacs-server

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list sante-pacs-server sudo dnf downgrade sante-pacs-server-<VERSION_BEFORE_4.1.0> sudo dnf versionlock add sante-pacs-server

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

Exact fixes by distribution

A distro patch exists: prefer upgrading over downgrading.

Fedora ELN · ibus-typing-booster · FIXED · 2.31.3-1.eln159 · FEDORA-2026-c895c68d60 · source

sudo dnf upgrade --advisory=FEDORA-2026-c895c68d60

Fedora 46 · perl-WWW-OrangeHRM-Client · FIXED · 0.12.0-21.fc46 · FEDORA-2026-2d14efca09 · source

sudo dnf upgrade --advisory=FEDORA-2026-2d14efca09

Public exploits and detection

Public code exists for this CVE. Treat unpatched systems as at risk, and only run PoCs in a lab.

Write-up: www.tenable.com/security/research/tra-2025-08

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2025-2263?

sante pacs server: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2025-2263 being exploited?

CVE-2025-2263 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2025-2263 affect?

CVE-2025-2263 affects sante pacs server. Severity is critical (CVSS 9.8). During login to the web server in "Sante PACS Server.exe", OpenSSL function EVP_DecryptUpdate is called to decrypt the username and password. A fixed 0x80-byte stack-based buffer is passed to the function as the output buffer. A stack-based

How urgent is CVE-2025-2263?

Priority 69/100. Critical severity; Public exploit reference; CISA SSVC: automatable with total technical impact; Remotely exploitable, no login, no user action; On your watchlist

Software pages

OpenSSL vulnerabilities

Related CVEs

CVE-2025-2264 HIGH 7.5 DOWNGRADE A Path Traversal Information Disclosure vulnerability exists in "Sante PACS Server.exe"
CVE-2025-0574 HIGH 7.5 UPGRADE Sante PACS Server URL path Memory Corruption Denial-of-Service Vulnerability
CVE-2025-0573 MEDIUM 5.3 UPGRADE Sante PACS Server DCM File Parsing Directory Traversal Arbitrary File Write Vulnerability
CVE-2025-0572 MEDIUM 4.3 UPGRADE Sante PACS Server Web Portal DCM File Parsing Directory Traversal Arbitrary File Write Vulnerability
CVE-2025-0571 MEDIUM 6.5 UPGRADE Sante PACS Server Web Portal DCM File Parsing Memory Corruption Denial-of-Service Vulnerability

References

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