CVE-2026-83548: SonicWall SMA1000 Appliances Server-Side Request Forgery Vulnerability

Q: How do I fix CVE-2026-83548?

sma8200v: upgrade to 12.4.3-03526, 12.5.0-02952; sma6210 firmware: upgrade to 12.4.3-03526, 12.5.0-02952; sma7210 firmware: upgrade to 12.4.3-03526, 12.5.0-02952. Exact commands for each OS are on this page.

Q: Is CVE-2026-83548 being exploited?

Yes. CVE-2026-83548 is on the CISA Known Exploited Vulnerabilities list, so treat it as patch-now.

Q: What does CVE-2026-83548 affect?

CVE-2026-83548 affects sma8200v, sma6210 firmware, sma7210 firmware. Severity is critical (CVSS 10.0). A Pre-authentication SSRF vulnerability exists in the SMA1000 Appliance Work Place interface due to an unintended alternate access path. A remote unauthenticated attacker could potentially exploit this vulnerability to gain unauthorized acc

Q: How urgent is CVE-2026-83548?

Priority 97/100. Critical severity; EPSS top 5%: very likely to be exploited; Exploited in the wild (CISA KEV); Public exploit reference; CISA SSVC: automatable with total technical impact; Remotely exploitable, no login, no user action

Patch now

CRITICAL 10.0EXPLOITEDREMOTEUPGRADEUPGRADEUPGRADE

CVE-2026-83548 is a critical-severity flaw (CVSS 10.0) affecting sma8200v, sma6210 firmware, sma7210 firmware, reported as exploited in the wild. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

A Pre-authentication SSRF vulnerability exists in the SMA1000 Appliance Work Place interface due to an unintended alternate access path. A remote unauthenticated attacker could potentially exploit this vulnerability to gain unauthorized access to sensitive functionality and perform unauthorized operations.

Why this priority

Critical severity
EPSS top 5%: very likely to be exploited
Exploited in the wild (CISA KEV)
Public exploit reference
CISA SSVC: automatable with total technical impact
Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	10.0 (Critical)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	8.0% (top 5%)
CISA exploited list	Yes, fix due 2026-09-05
Weakness	CWE-441, CWE-918
Published	2026-09-01
Last modified	2026-09-03

Publisher (CNA): SonicWALL, Inc. · Vendor: sonicwall

Last updated 2026-09-03 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-09-01 22:17 UTCPublished CVE record published
2026-09-02Exploited Added to the CISA Known Exploited Vulnerabilities list
2026-09-03 13:06 UTCUpdated Record last modified
2026-09-05Deadline CISA due date for US federal agencies to patch

sonicwall sma8200v UPGRADE

Affected: < 12.4.3-03526 · >= 12.5.0 and < 12.5.0-02952

Fixed in: 12.4.3-03526, 12.5.0-02952

Safe to downgrade to: a release before 12.5.0

1. Check installed version

apt-cache policy sma8200v || rpm -q sma8200v || sma8200v --version

2. UPGRADE to 12.4.3-03526 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade sma8200v

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade sma8200v

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

3. If no update is available yet, DOWNGRADE to a release before 12.5.0 (Debian / Ubuntu)

apt-cache madison sma8200v sudo apt install sma8200v=<VERSION_BEFORE_12.5.0> sudo apt-mark hold sma8200v

3. If no update is available yet, DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list sma8200v sudo dnf downgrade sma8200v-<VERSION_BEFORE_12.5.0> sudo dnf versionlock add sma8200v

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.

sonicwall sma6210 firmware UPGRADE

Affected: < 12.4.3-03526 · >= 12.5.0 and < 12.5.0-02952

Fixed in: 12.4.3-03526, 12.5.0-02952

Safe to downgrade to: a release before 12.5.0

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 sma7210 firmware UPGRADE

Affected: < 12.4.3-03526 · >= 12.5.0 and < 12.5.0-02952

Fixed in: 12.4.3-03526, 12.5.0-02952

Safe to downgrade to: a release before 12.5.0

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.

Exact fixes by distribution

Fedora 46 · uv · FIXED · 0.13.5-1.fc46 · FEDORA-2026-61ea5a28c6 · source

sudo dnf upgrade --advisory=FEDORA-2026-61ea5a28c6

Public exploits and detection

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

GitHub PoC: xoessie/CVE-2026-83548-SonicWall-SMA1000-Analysis (0 stars)
GitHub PoC: xcoy0te/CVE-2026-83548-checker (0 stars)
GitHub PoC: HORKimhab/CVE-2026-83548-CVE-2026-83549 (0 stars)
Metasploit: SonicWall SMA1000 WorkPlace SSRF to Root Remote Code Execution
Nuclei scan template: SonicWall SMA1000 WorkPlace - Unauthenticated SSRF to CouchDB

Advisories and coverage

Official advisories

CERT-FR Alerts: Multiples vulnérabilités dans SonicWall Secure Mobile Access (02 septembre 2026) 2026-09-02

Verify at the official source NVD · CVE Program · CISA KEV catalog · 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-2026-83548?

sma8200v: upgrade to 12.4.3-03526, 12.5.0-02952; sma6210 firmware: upgrade to 12.4.3-03526, 12.5.0-02952; sma7210 firmware: upgrade to 12.4.3-03526, 12.5.0-02952. Exact commands for each OS are on this page.

Is CVE-2026-83548 being exploited?

Yes. CVE-2026-83548 is on the CISA Known Exploited Vulnerabilities list, so treat it as patch-now.

What does CVE-2026-83548 affect?

CVE-2026-83548 affects sma8200v, sma6210 firmware, sma7210 firmware. Severity is critical (CVSS 10.0). A Pre-authentication SSRF vulnerability exists in the SMA1000 Appliance Work Place interface due to an unintended alternate access path. A remote unauthenticated attacker could potentially exploit this vulnerability to gain unauthorized acc

How urgent is CVE-2026-83548?

Priority 97/100. Critical severity; EPSS top 5%: very likely to be exploited; Exploited in the wild (CISA KEV); Public exploit reference; CISA SSVC: automatable with total technical impact; Remotely exploitable, no login, no user action

Software pages

SonicWall vulnerabilities

Related CVEs

CVE-2026-83549 HIGH 7.8 EXPLOITED UPGRADE UPGRADE SonicWall SMA1000 Appliances OS Command Injection Vulnerability

References

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