CVE-2023-35034: Atos Unify OpenScape 4000 Assistant V10 R1 before V10 R1.42.0 and V10 R1.34.8 and Manager V10 R1 before V10 R1

This month

CRITICAL 9.8REMOTEDOWNGRADEDOWNGRADE

CVE-2023-35034 is a critical-severity flaw (CVSS 9.8) affecting unify openscape 4000 assistant, unify openscape 4000 manager. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Atos Unify OpenScape 4000 Assistant V10 R1 before V10 R1.42.0 and V10 R1.34.8 and Manager V10 R1 before V10 R1.42.0 and V10 R1.34.8 allow remote code execution by unauthenticated users, aka OSFOURK-24033.

Why this priority

Critical severity
Remotely exploitable, no login, no user action

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	9.8 (Critical)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	1.3% (top 29%)
CISA exploited list	No
Weakness	CWE-94
Published	2023-06-12
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: atos

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

Am I affected?

Timeline

2023-06-12 02:15 UTCPublished CVE record published
2026-06-17 06:04 UTCUpdated Record last modified

atos unify openscape 4000 assistant DOWNGRADE

Affected: 10 r1 · 10 r1.34.4

Fixed in: no fixed release known

Safe to downgrade to: a release before 10

1. Check installed version

apt-cache policy unify-openscape-4000-assistant || rpm -q unify-openscape-4000-assistant || unify-openscape-4000-assistant --version

2. No fixed release: DOWNGRADE to a release before 10 (Debian / Ubuntu)

apt-cache madison unify-openscape-4000-assistant sudo apt install unify-openscape-4000-assistant=<VERSION_BEFORE_10> sudo apt-mark hold unify-openscape-4000-assistant

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

dnf --showduplicates list unify-openscape-4000-assistant sudo dnf downgrade unify-openscape-4000-assistant-<VERSION_BEFORE_10> sudo dnf versionlock add unify-openscape-4000-assistant

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.

atos unify openscape 4000 manager DOWNGRADE

Affected: 10 r1 · 10 r1.34.4

Fixed in: no fixed release known

Safe to downgrade to: a release before 10

1. Check installed version

apt-cache policy unify-openscape-4000-manager || rpm -q unify-openscape-4000-manager || unify-openscape-4000-manager --version

2. No fixed release: DOWNGRADE to a release before 10 (Debian / Ubuntu)

apt-cache madison unify-openscape-4000-manager sudo apt install unify-openscape-4000-manager=<VERSION_BEFORE_10> sudo apt-mark hold unify-openscape-4000-manager

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

dnf --showduplicates list unify-openscape-4000-manager sudo dnf downgrade unify-openscape-4000-manager-<VERSION_BEFORE_10> sudo dnf versionlock add unify-openscape-4000-manager

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.

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-2023-35034?

unify openscape 4000 assistant: downgrade or apply the listed mitigation; unify openscape 4000 manager: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2023-35034 being exploited?

CVE-2023-35034 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-2023-35034 affect?

CVE-2023-35034 affects unify openscape 4000 assistant, unify openscape 4000 manager. Severity is critical (CVSS 9.8). Atos Unify OpenScape 4000 Assistant V10 R1 before V10 R1.42.0 and V10 R1.34.8 and Manager V10 R1 before V10 R1.42.0 and V10 R1.34.8 allow remote code execution by unauthenticated users, aka OSFOURK-24033.

How urgent is CVE-2023-35034?

Priority 57/100. Critical severity; Remotely exploitable, no login, no user action

Related CVEs

CVE-2023-45356 HIGH 8.8 DOWNGRADE DOWNGRADE Atos Unify OpenScape 4000 Platform V10 R1 before Hotfix V10 R1.42.2 4000 and Manager Platform V10 R1 before Ho
CVE-2023-45355 HIGH 8.8 DOWNGRADE DOWNGRADE Atos Unify OpenScape 4000 Platform V10 R1 before Hotfix V10 R1.42.2 and 4000 and Manager Platform V10 R1 befor
CVE-2023-45351 HIGH 8.8 DOWNGRADE DOWNGRADE Atos Unify OpenScape 4000 Assistant V10 R1 before V10 R1.42.1, 4000 Assistant V10 R0, 4000 Manager V10 R1 befo
CVE-2023-45349 HIGH 7.5 DOWNGRADE DOWNGRADE Atos Unify OpenScape 4000 Assistant V10 R1 before V10 R1.34.7, 4000 Assistant V10 R1.42.0, 4000 Assistant V10
CVE-2023-35035 HIGH 8.8 DOWNGRADE DOWNGRADE Atos Unify OpenScape 4000 Assistant V10 R1 before V10 R1.42.0 and V10 R1.34.8, Assistant V10 R0, Manager V10 R

References

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