Exploitation evidence
Known exploited · CISA KEV listed
Added 2022-02-22. Ransomware campaign use: Unknown.
CISA required action: Apply updates per vendor instructions.
CISA due date: 2022-03-08. This is the catalog’s deadline, not an assessment of your organization’s exposure.
KEV checked 13 Nov 2026, 00:20 Jerusalem · Original catalog ↗Reported products and versions
Zabbix / Frontend
Default status: Not specified
- affected: 5.4.0 - 5.4.8
- unaffected: 5.4.9 to < 5.4.9* (custom)
Fixes and workarounds
To remediate this vulnerability, install the updates or if an immediate update is not possible, follow the presented workarounds.
Reported workarounds: Disable SAML authentication
Sources and related reporting
Observed change timeline
History begins when Egret first downloads each source. It is not the complete upstream CVE history.
12 Nov 2026, 18:20 Jerusalem · EPSS observation updated
Stored EPSS snapshot at this observation.
{
"date": "2026-11-12",
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"percentile": 0.99872
}10 Nov 2026, 18:20 Jerusalem · EPSS observation updated
Stored EPSS snapshot at this observation.
{
"date": "2026-11-10",
"epss": 0.95683,
"percentile": 0.99871
}09 Nov 2026, 18:20 Jerusalem · EPSS observation updated
Stored EPSS snapshot at this observation.
{
"date": "2026-11-09",
"epss": 0.95683,
"percentile": 0.99871
}08 Nov 2026, 18:20 Jerusalem · EPSS observation updated
Stored EPSS snapshot at this observation.
{
"date": "2026-11-08",
"epss": 0.95683,
"percentile": 0.99871
}07 Nov 2026, 18:20 Jerusalem · EPSS observation updated
Stored EPSS snapshot at this observation.
{
"date": "2026-11-07",
"epss": 0.95683,
"percentile": 0.99871
}06 Nov 2026, 18:20 Jerusalem · EPSS observation updated
Stored EPSS snapshot at this observation.
{
"date": "2026-11-06",
"epss": 0.95683,
"percentile": 0.99871
}06 Nov 2026, 06:20 Jerusalem · EPSS observation updated
Stored EPSS snapshot at this observation.
{
"date": "2026-11-05",
"epss": 0.95683,
"percentile": 0.99871
}05 Nov 2026, 06:20 Jerusalem · CVE Program record changed
Stored CNA snapshot at this observation.
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}04 Nov 2026, 18:20 Jerusalem · EPSS observation updated
Stored EPSS snapshot at this observation.
{
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"epss": 0.95683,
"percentile": 0.99871
}03 Nov 2026, 18:20 Jerusalem · EPSS observation updated
Stored EPSS snapshot at this observation.
{
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"epss": 0.95683,
"percentile": 0.99871
}03 Nov 2026, 02:22 Jerusalem · EPSS observation updated
Stored EPSS snapshot at this observation.
{
"date": "2026-11-02",
"epss": 0.95683,
"percentile": 0.99871
}03 Nov 2026, 02:22 Jerusalem · CISA KEV status changed
Stored KEV snapshot at this observation.
{
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"cwes": [
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],
"dateAdded": "2022-02-22",
"dueDate": "2022-03-08",
"forensicTriage": "No",
"knownRansomwareCampaignUse": "Unknown",
"notes": "https://nvd.nist.gov/vuln/detail/CVE-2022-23131",
"product": "Frontend",
"requiredAction": "Apply updates per vendor instructions.",
"shortDescription": "Unsafe client-side session storage leading to authentication bypass/instance takeover via Zabbix Frontend with configured SAML.",
"vendorProject": "Zabbix",
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}