CVE-2025-34025: The Versa Concerto SD-WAN orchestration platform is vulnerable to an privileges escalation and container escap

This month

HIGH 8.8DOWNGRADE

CVE-2025-34025 is a high-severity flaw (CVSS 8.8) affecting concerto. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

The Versa Concerto SD-WAN orchestration platform is vulnerable to an privileges escalation and container escape vulnerability caused by unsafe default mounting of host binary paths that allow the container to modify host paths. The escape can be used to trigger remote code execution or direct host access depending on the host operating system configuration.This issue is known to affect Concerto from 12.1.2 through 12.2.0. Additional versions may

Why this priority

High severity
Public exploit reference

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

Risk facts

CVSS score	8.8 (High)
Attack vector	Local
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	0.6% (top 51%)
CISA exploited list	No
Weakness	CWE-732
Published	2025-05-21
Last modified	2026-08-25

Publisher (CNA): VulnCheck · Vendor: versa-networks

Last updated 2026-08-25 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2025-05-21 23:15 UTCPublished CVE record published
2026-08-25 14:40 UTCUpdated Record last modified

versa-networks concerto DOWNGRADE

Affected: 12.1.1 · 12.1.2

Fixed in: no fixed release known

Safe to downgrade to: a release before 12.1.1

1. Check installed version

apt-cache policy concerto || rpm -q concerto || concerto --version

2. No fixed release: DOWNGRADE to a release before 12.1.1 (Debian / Ubuntu)

apt-cache madison concerto sudo apt install concerto=<VERSION_BEFORE_12.1.1> sudo apt-mark hold concerto

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

dnf --showduplicates list concerto sudo dnf downgrade concerto-<VERSION_BEFORE_12.1.1> sudo dnf versionlock add concerto

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-2025-34025?

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

Is CVE-2025-34025 being exploited?

CVE-2025-34025 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-2025-34025 affect?

CVE-2025-34025 affects concerto. Severity is high (CVSS 8.8). The Versa Concerto SD-WAN orchestration platform is vulnerable to an privileges escalation and container escape vulnerability caused by unsafe default mounting of host binary paths that allow the container to modify host paths. The escape c

How urgent is CVE-2025-34025?

Priority 48/100. High severity; Public exploit reference

Related CVEs

CVE-2025-34027 CRITICAL 9.0 UPGRADE The Versa Concerto SD-WAN orchestration platform is vulnerable to an authentication bypass in the Traefik reve
CVE-2025-34026 HIGH 7.5 EXPLOITED UPGRADE Versa Concerto Improper Authentication Vulnerability

References

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