Operator access via unchanged default C2 credentials
Published Jul 30, 2026 · Updated Jul 30, 2026
Use of default credentials in grisuno LazyOwn before 0.2.154 allows remote attackers to gain C2 operator access over the network. payload.json and core/payload_schema.py supply the same public username and password, and lazyc2.py accepts them through a plain equality check without rejecting known defaults. Exposure requires a reachable C2 dashboard whose operator has retained the shipped values; successful authentication grants control of beacons, listeners, campaign data, and reports.
Summary
What happened
Use of default credentials in grisuno LazyOwn before 0.2.154 allows remote attackers to gain C2 operator access over the network. payload.json and core/payload_schema.py supply the same public username and password, and lazyc2.py accepts them through a plain equality check without rejecting known defaults. Exposure requires a reachable C2 dashboard whose operator has retained the shipped values; successful authentication grants control of beacons, listeners, campaign data, and reports.
The record
- CVE
- CVE-2026-68503
- Published
- Jul 30, 2026
- Updated
- Jul 30, 2026
- Vendor
- grisuno
- Product
- LazyOwn
- Classifications
- CWE-1392, T1078.001
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Jul 30, 2026CVE publishedPublication date reported by the CVE source.
- Jul 30, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=< 0.2.154
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Public exploit references
- LazyOwn default C2 credentials proof of conceptproof of concept · demonstrated
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Technologies
Your stack
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Your stack
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