CVE Explorer
CVE-2026-6643
A stack-based buffer overflow vulnerability was found in the VPN Clients on the ADM. The issue stems from the use of unbounded sscanf() and passing user-controlled data directly to printf(). Due to the lack of PIE and Stack Canary protections, an authenticated remote attacker can exploit these to execute arbitrary code as the web server user.
Affected products and versions include: from ADM 4.1.0 through ADM 4.3.3.RR42 as well as from ADM 5.0.0 through ADM 5.1.2.REO1.
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
0
Affected products and versions
1 source assertion{"defaultStatus":"unaffected","packageName":"VPN Clients","platforms":["Linux","x86","ARM","64 bit"],"product":"ADM","vendor":"ASUSTOR Inc.","versions":[{"lessThanOrEqual":"4.3.3.RR42","status":"affected","version":"4.1.0","versionType":"custom"},{"lessThanOrEqual":"5.1.2.REO1","status":"affected","version":"5.0.0","versionType":"custom"}]}
- cve_program_cvelist_v5affectedurn:baitaphish:normalized-source-record:v2:c49c7af475fe65ddb672d4dd00f4fa4eac37e513ffd01d3dfeb37e0dc4439f69 · sha256:bd2fd96e3dee7cab… · /containers/cna/affected/0
Provider-owned CVSS observations
1 source assertion{"metric":{"Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","Safety":"NOT_DEFINED","attackComplexity":"LOW","attackRequirements":"NONE","attackVector":"NETWORK","baseScore":8.6,"baseSeverity":"HIGH","exploitMaturity":"NOT_DEFINED","privilegesRequired":"HIGH","providerUrgency":"NOT_DEFINED","subAvailabilityImpact":"LOW","subConfidentialityImpact":"LOW","subIntegrityImpact":"LOW","userInteraction":"NONE","valueDensity":"NOT_DEFINED","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:L/SI:L/SA:L","version":"4.0","vulnAvailabilityImpact":"HIGH","vulnConfidentialityImpact":"HIG…
- cve_program_cvelist_v5cvssurn:baitaphish:normalized-source-record:v2:c49c7af475fe65ddb672d4dd00f4fa4eac37e513ffd01d3dfeb37e0dc4439f69 · sha256:bd2fd96e3dee7cab… · /containers/cna/metrics/0/cvssV4_0
CWE assertions
1 source assertion{"cweId":"CWE-121","description":"CWE-121 Stack-based buffer overflow","lang":"en","type":"CWE"}
- cve_program_cvelist_v5cweurn:baitaphish:normalized-source-record:v2:c49c7af475fe65ddb672d4dd00f4fa4eac37e513ffd01d3dfeb37e0dc4439f69 · sha256:bd2fd96e3dee7cab… · /containers/cna/problemTypes/0/descriptions/0
Source references
1 source assertion{"tags":["vendor-advisory"],"url":"https://www.asustor.com/security/security_advisory_detail?id=54"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:c49c7af475fe65ddb672d4dd00f4fa4eac37e513ffd01d3dfeb37e0dc4439f69 · sha256:bd2fd96e3dee7cab… · /containers/cna/references/0
Attribution and limitations
- CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →
Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.