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CVE-2026-2743

Arbitrary File Write via Path Traversal upload to Remote Code Execution in SeppMail User Web Interface. The affected feature is the large file transfer (LFT). This issue affects SeppMail: 15.0.2.1 and before
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:b8ef7cbe09da2f01bab11c2a7652f980c926c9defba6195ac512be883365a1cb
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
1

Preserved source conflicts

No provider value was silently selected as the winner.

cwe · 2 assertions

{"cweId":"CWE-434","description":"CWE-434 Unrestricted Upload of File with Dangerous Type","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:f293e66d00be783dabee5bc8199202ba4f429d733eaafacac3047978be73a381 · sha256:8605557d6a686399… · /containers/cna/problemTypes/1/descriptions/0

{"cweId":"CWE-22","description":"CWE-22 Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:f293e66d00be783dabee5bc8199202ba4f429d733eaafacac3047978be73a381 · sha256:8605557d6a686399… · /containers/cna/problemTypes/0/descriptions/0

Affected products and versions

1 source assertion
{"defaultStatus":"unknown","modules":["GINA User Web Interface"],"platforms":["Linux"],"product":"SeppMail","vendor":"SeppMail","versions":[{"lessThanOrEqual":"15.0.2.1","status":"affected","version":"unknown","versionType":"-"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:f293e66d00be783dabee5bc8199202ba4f429d733eaafacac3047978be73a381 · sha256:8605557d6a686399… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"Automatable":"YES","Recovery":"NOT_DEFINED","Safety":"NOT_DEFINED","attackComplexity":"LOW","attackRequirements":"NONE","attackVector":"NETWORK","baseScore":10,"baseSeverity":"CRITICAL","exploitMaturity":"ATTACKED","privilegesRequired":"NONE","providerUrgency":"NOT_DEFINED","subAvailabilityImpact":"HIGH","subConfidentialityImpact":"HIGH","subIntegrityImpact":"HIGH","userInteraction":"NONE","valueDensity":"NOT_DEFINED","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:A/AU:Y","version":"4.0","vulnAvailabilityImpact":"HIGH","vulnConfidentialityImpact":…
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:f293e66d00be783dabee5bc8199202ba4f429d733eaafacac3047978be73a381 · sha256:8605557d6a686399… · /containers/cna/metrics/0/cvssV4_0

CWE assertions

2 source assertions
{"cweId":"CWE-434","description":"CWE-434 Unrestricted Upload of File with Dangerous Type","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:f293e66d00be783dabee5bc8199202ba4f429d733eaafacac3047978be73a381 · sha256:8605557d6a686399… · /containers/cna/problemTypes/1/descriptions/0
{"cweId":"CWE-22","description":"CWE-22 Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:f293e66d00be783dabee5bc8199202ba4f429d733eaafacac3047978be73a381 · sha256:8605557d6a686399… · /containers/cna/problemTypes/0/descriptions/0

Source references

3 source assertions
{"url":"https://downloads.seppmail.com/extrelnotes/150/ERN15.0.html"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:f293e66d00be783dabee5bc8199202ba4f429d733eaafacac3047978be73a381 · sha256:8605557d6a686399… · /containers/cna/references/0
{"url":"https://labs.infoguard.ch/posts/seppmail_secure_e-mail_gateway_rce_vulnerabilities_cve-2026-2743_cve-2026-7864_cve-2026-44127_cve-2026-44128/"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:f293e66d00be783dabee5bc8199202ba4f429d733eaafacac3047978be73a381 · sha256:8605557d6a686399… · /containers/cna/references/1
{"tags":["exploit"],"url":"https://labs.infoguard.ch/posts/seppmail_secure_e-mail_gateway_rce_vulnerabilities_cve-2026-2743_cve-2026-7864_cve-2026-44127_cve-2026-44128/"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:f293e66d00be783dabee5bc8199202ba4f429d733eaafacac3047978be73a381 · sha256:8605557d6a686399… · /containers/adp/0/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.

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