CVE-2025-32820: A vulnerability in SMA100 allows a remote authenticated attacker with SSLVPN user privileges can inject a path
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HIGH 8.8UPGRADEUPGRADEUPGRADE
CVE-2025-32820 is a high-severity flaw (CVSS 8.8) affecting sma 100 firmware, sma 200 firmware, sma 210 firmware. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
A vulnerability in SMA100 allows a remote authenticated attacker with SSLVPN user privileges can inject a path traversal sequence to make any directory on the SMA appliance writable.
Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score
Am I affected?
Timeline
Published CVE record published
Updated Record last modified
sonicwall sma 100 firmware UPGRADE
Affected: < 10.2.1.15-81sv
Fixed in: 10.2.1.15-81sv
Safe to downgrade to: no unaffected older release
Check your OS release
cat /etc/os-release; uname -r
Debian / Ubuntu
sudo apt update && sudo apt full-upgrade
RHEL / Amazon Linux / Fedora
sudo dnf upgrade --refresh
Windows
Install the latest cumulative update from Windows Update
If no patch exists yet
OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.
sonicwall sma 200 firmware UPGRADE
Affected: < 10.2.1.15-81sv
Fixed in: 10.2.1.15-81sv
Safe to downgrade to: no unaffected older release
Check your OS release
cat /etc/os-release; uname -r
Debian / Ubuntu
sudo apt update && sudo apt full-upgrade
RHEL / Amazon Linux / Fedora
sudo dnf upgrade --refresh
Windows
Install the latest cumulative update from Windows Update
If no patch exists yet
OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.
sonicwall sma 210 firmware UPGRADE
Affected: < 10.2.1.15-81sv
Fixed in: 10.2.1.15-81sv
Safe to downgrade to: no unaffected older release
Check your OS release
cat /etc/os-release; uname -r
Debian / Ubuntu
sudo apt update && sudo apt full-upgrade
RHEL / Amazon Linux / Fedora
sudo dnf upgrade --refresh
Windows
Install the latest cumulative update from Windows Update
If no patch exists yet
OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.
sonicwall sma 400 firmware UPGRADE
Affected: < 10.2.1.15-81sv
Fixed in: 10.2.1.15-81sv
Safe to downgrade to: no unaffected older release
Check your OS release
cat /etc/os-release; uname -r
Debian / Ubuntu
sudo apt update && sudo apt full-upgrade
RHEL / Amazon Linux / Fedora
sudo dnf upgrade --refresh
Windows
Install the latest cumulative update from Windows Update
If no patch exists yet
OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.
sonicwall sma 410 firmware UPGRADE
Affected: < 10.2.1.15-81sv
Fixed in: 10.2.1.15-81sv
Safe to downgrade to: no unaffected older release
Check your OS release
cat /etc/os-release; uname -r
Debian / Ubuntu
sudo apt update && sudo apt full-upgrade
RHEL / Amazon Linux / Fedora
sudo dnf upgrade --refresh
Windows
Install the latest cumulative update from Windows Update
If no patch exists yet
OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.
sonicwall sma 500v firmware UPGRADE
Affected: < 10.2.1.15-81sv
Fixed in: 10.2.1.15-81sv
Safe to downgrade to: no unaffected older release
Check your OS release
cat /etc/os-release; uname -r
Debian / Ubuntu
sudo apt update && sudo apt full-upgrade
RHEL / Amazon Linux / Fedora
sudo dnf upgrade --refresh
Windows
Install the latest cumulative update from Windows Update
If no patch exists yet
OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.
Verify at the official sourceNVD · 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-2025-32820?
sma 100 firmware: upgrade to 10.2.1.15-81sv; sma 200 firmware: upgrade to 10.2.1.15-81sv; sma 210 firmware: upgrade to 10.2.1.15-81sv. Exact commands for each OS are on this page.
Is CVE-2025-32820 being exploited?
CVE-2025-32820 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-2025-32820 affect?
CVE-2025-32820 affects sma 100 firmware, sma 200 firmware, sma 210 firmware. Severity is high (CVSS 8.8). A vulnerability in SMA100 allows a remote authenticated attacker with SSLVPN user privileges can inject a path traversal sequence to make any directory on the SMA appliance writable.
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