CVE-2025-20308: A vulnerability in Cisco Spaces Connector could allow an authenticated, local attacker to elevate privileges a

Routine

MEDIUM 6.0DOWNGRADE

CVE-2025-20308 is a medium-severity flaw (CVSS 6.0) affecting spaces connector. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

A vulnerability in Cisco Spaces Connector could allow an authenticated, local attacker to elevate privileges and execute arbitrary commands on the underlying operating system as root. This vulnerability is due to insufficient restrictions during the execution of specific CLI commands. An attacker could exploit this vulnerability by logging in to the Cisco Spaces Connector CLI as the spacesadmin user and executing a specific command with crafte

Why this priority

No elevated risk signals yet

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

Risk facts

CVSS score	6.0 (Medium)
Attack vector	Local
Attack complexity	Low
Privileges needed	High
User interaction	None
EPSS exploit chance	0.2% (top 91%)
CISA exploited list	No
Weakness	CWE-78
Published	2025-07-02
Last modified	2026-06-17

Publisher (CNA): Cisco Systems, Inc. · Vendor: cisco

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

Am I affected?

Timeline

2025-07-02 16:15 UTCPublished CVE record published
2026-06-17 08:41 UTCUpdated Record last modified

cisco spaces connector DOWNGRADE

Affected: 3.0 · 3.0 jan_2023 · 3.0 jan_2024 · 3.0 jan_2025 · 3.0 july_2024 · 3.0 may_2023 · 3.0 may_2024 · 3.0 sep_2022

Fixed in: no fixed release known

Safe to downgrade to: a release before 3.0

1. Check installed version

apt-cache policy spaces-connector || rpm -q spaces-connector || spaces-connector --version

2. No fixed release: DOWNGRADE to a release before 3.0 (Debian / Ubuntu)

apt-cache madison spaces-connector sudo apt install spaces-connector=<VERSION_BEFORE_3.0> sudo apt-mark hold spaces-connector

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

dnf --showduplicates list spaces-connector sudo dnf downgrade spaces-connector-<VERSION_BEFORE_3.0> sudo dnf versionlock add spaces-connector

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-2025-20308?

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

Is CVE-2025-20308 being exploited?

CVE-2025-20308 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-2025-20308 affect?

CVE-2025-20308 affects spaces connector. Severity is medium (CVSS 6.0). A vulnerability in Cisco Spaces Connector could allow an authenticated, local attacker to elevate privileges and execute arbitrary commands on the underlying operating system as root. This vulnerability is due to insufficient restriction

How urgent is CVE-2025-20308?

Priority 23/100. No elevated risk signals yet.

Software pages

Cisco vulnerabilities

References

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