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SonicWall

SonicWall SonicOS SSLVPN Use of Single-factor Authentication Vulnerability

CVE-2026-19868

What this means

This is rated high severity (7.5 out of 10). It is on the known-exploited catalogue, which means attacks using it have already been seen. Ask IT whether SonicWall SonicOS SSLVPN is in your estate, and treat that as the priority.

Full vendor description

An authentication enforcement vulnerability in SonicOS SSLVPN service may allow a user with valid credentials for an alternate authentication method to bypass SAML authentication controls. Successful exploitation may also bypass SAML-enforced multi-factor authentication (MFA).

Scoring and exploitation

7.5/ 10
CVSS 3.1 base scoreHigh

Exploitable over the network without any account, under specific conditions, and no one has to click or open anything. High impact on confidentiality; low on integrity, and it can reach beyond the vulnerable system.

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:L/A:N

Exploitability

Longer bar: easier to attack

Attack vectorNetworkAV:N
Attack complexityHighAC:H
Privileges requiredNonePR:N
User interactionNoneUI:N
ScopeChangedS:C

Impact

Longer bar: more harm

ConfidentialityHighC:H
IntegrityLowI:L
AvailabilityNoneA:N
~0.6% estimated chance of attack in 30 daysModel estimate (): a probability signal, not confirmed exploitation
Exploited in the wild
Yes — confirmed exploitation (US CISA )
Not reported
Listed product
SonicWall SonicOS SSLVPN

Weaknesses

CWE-308

References

2 links from the CVE record, grouped by site.

Related feed events

  • SonicWall SonicOS SSLVPN Use of Single-factor Authentication Vulnerability

    Type Vulnerability

    A vulnerability in SonicWall SonicOS SSLVPN allows attackers with credentials from a different login method to bypass SAML checks, including SAML-enforced MFA. Known-exploited catalogue reports exploitation in the wild.

    Next step: Confirm whether SonicWall SonicOS SSLVPN is in your estate.

    Who's reporting

    1 of 3 perspectives

    Official authority: Official 2Vendor statement missing. no VendorResearcher coverage missing. no Researcher2 signals

    Only official coverage so far. Treat as an early signal.

    SonicWall SonicOS SSLVPN
    CVE-2026-19868