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CVE-2026-51540

OpENer 2.3.0 (master branch up to commit 76b95cf) is vulnerable to a severe memory corruption issue caused by an integer underflow in the processing of connected explicit messages (SendUnitData).
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:10307717f77cf13c1e3e5267d5a8acb2cb8db2e30c514ae65e1823e5dd5531c6
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-191","description":"CWE-191 Integer Underflow (Wrap or Wraparound)","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:96b89de8f52eb92f6b49e80dc286f225c05031ace8e610947b94c50e2f8c5268 · sha256:eb782bfae3d0f941… · /containers/adp/0/problemTypes/0/descriptions/0

{"description":"n/a","lang":"en","type":"text"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:96b89de8f52eb92f6b49e80dc286f225c05031ace8e610947b94c50e2f8c5268 · sha256:eb782bfae3d0f941… · /containers/cna/problemTypes/0/descriptions/0

Affected products and versions

1 source assertion
{"product":"n/a","vendor":"n/a","versions":[{"status":"affected","version":"n/a"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:96b89de8f52eb92f6b49e80dc286f225c05031ace8e610947b94c50e2f8c5268 · sha256:eb782bfae3d0f941… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":9.8,"baseSeverity":"CRITICAL","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:96b89de8f52eb92f6b49e80dc286f225c05031ace8e610947b94c50e2f8c5268 · sha256:eb782bfae3d0f941… · /containers/adp/0/metrics/0/cvssV3_1

CWE assertions

2 source assertions
{"cweId":"CWE-191","description":"CWE-191 Integer Underflow (Wrap or Wraparound)","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:96b89de8f52eb92f6b49e80dc286f225c05031ace8e610947b94c50e2f8c5268 · sha256:eb782bfae3d0f941… · /containers/adp/0/problemTypes/0/descriptions/0
{"description":"n/a","lang":"en","type":"text"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:96b89de8f52eb92f6b49e80dc286f225c05031ace8e610947b94c50e2f8c5268 · sha256:eb782bfae3d0f941… · /containers/cna/problemTypes/0/descriptions/0

Source references

3 source assertions
{"url":"https://gist.github.com/MrAlaskan/5e0c2af7f4a1d188814c7fa8f812c8da"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:96b89de8f52eb92f6b49e80dc286f225c05031ace8e610947b94c50e2f8c5268 · sha256:eb782bfae3d0f941… · /containers/cna/references/1
{"url":"https://github.com/EIPStackGroup/OpENer/issues/568"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:96b89de8f52eb92f6b49e80dc286f225c05031ace8e610947b94c50e2f8c5268 · sha256:eb782bfae3d0f941… · /containers/cna/references/0
{"tags":["exploit"],"url":"https://github.com/EIPStackGroup/OpENer/issues/568"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:96b89de8f52eb92f6b49e80dc286f225c05031ace8e610947b94c50e2f8c5268 · sha256:eb782bfae3d0f941… · /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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