VulnSocial

CVE-2026-56022Active Exploitation(webmin / webmin)

LOWCVSS 6.9 · MEDIUM

Exploitation ongoing with high activity in latest observed window (1 mentions)

Immediate actions

  • Prioritize remediation for webmin webmin systems immediately
  • Assume compromise if assets are exposed
  • Track advisory updates for patch or workaround availability

Recommended action window: Immediate (within 24h)

NVD description

Webmin accepts basic authentication without session cookies when an attacker provides the 'User-Agent: webmin' header, allowing bypass of additional MFA requirements. Fixed in 2.640.

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3.5/ 10 priority

Sources & remediation

Vendor / third-party advisories
Other references
Weakness type (CWE)
CWE-308

Priority

LOW

Exploitation

ACTIVE

PoC

NONE

Patch

NONE

Momentum

NONE

Are you affected?

If you run products in this scope, you should treat this CVE as relevant to your environment.

  • webmin

Threat summary

  • Active exploitation appears in 1 classified signals
  • 1 mentions across 1 observed day

What's happening

  • Active exploitation reported across 1 signal
  • 1 total mentions across 1 day

Affected systems

Vendors
webmin
Products
webmin

Deep dive

Activity timeline1 mentions / 1d
00111Mentions · 2026-06-19: 1Active Exploitation · 2026-06-19: 106-19
Signal classification1 categories
Active Exploitation
1100.0%
Referenced assets1 URL
By indicator
Full discourse1 post
  • VulDB 🛡@vuldb
    Active Exploitation

    Some increased actor activities are shown targeting Webmin (CVE-2026-56022) https://vuldb.com/vuln/372259/cti

    Post summary

    The text indicates that threat actors are actively targeting Webmin CVE-2026-56022, suggesting ongoing exploitation in the wild.

    0000051
    2.2K followersView on X
CPE platform detail1 entries

1 of 1 entries

PartVendorProductVersionTarget SWTarget HW
Appwebminwebmin---

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