Baitaphish
Security intelligence
SearchLatest briefing
CVE Explorer

CVE-2026-41502

BACnet Stack is a BACnet open source protocol stack C library for embedded systems. Prior to 1.4.3, an off-by-one out-of-bounds read vulnerability in bacnet-stack's ReadPropertyMultiple service decoder allows unauthenticated remote attackers to read one byte past an allocated buffer boundary by sending a crafted RPM request with a truncated object identifier. The vulnerability is in rpm_decode_object_id(), which checks apdu_len < 5 but then accesses all 6 byte positions (indices 0-5) — consuming
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:01896f2d3e6834af8bb3efdc83a3bcb17c78b3f0396ff548e251c3b40c497e2f
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-125","description":"CWE-125: Out-of-bounds Read","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:a316e97a51f48293086536301013fd3ec175facc3e094f755401de240e96f9ab · sha256:3f8752a8b982b6db… · /containers/cna/problemTypes/0/descriptions/0

{"cweId":"CWE-193","description":"CWE-193: Off-by-one Error","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:a316e97a51f48293086536301013fd3ec175facc3e094f755401de240e96f9ab · sha256:3f8752a8b982b6db… · /containers/cna/problemTypes/1/descriptions/0

Affected products and versions

1 source assertion
{"product":"bacnet-stack","vendor":"bacnet-stack","versions":[{"status":"affected","version":">= 1.4.0, < 1.4.3"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:a316e97a51f48293086536301013fd3ec175facc3e094f755401de240e96f9ab · sha256:3f8752a8b982b6db… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"attackComplexity":"LOW","attackRequirements":"NONE","attackVector":"NETWORK","baseScore":8.7,"baseSeverity":"HIGH","privilegesRequired":"NONE","subAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","userInteraction":"NONE","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","version":"4.0","vulnAvailabilityImpact":"HIGH","vulnConfidentialityImpact":"NONE","vulnIntegrityImpact":"NONE"},"metric_type":"cvssV4_0"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:a316e97a51f48293086536301013fd3ec175facc3e094f755401de240e96f9ab · sha256:3f8752a8b982b6db… · /containers/cna/metrics/0/cvssV4_0

CWE assertions

2 source assertions
{"cweId":"CWE-125","description":"CWE-125: Out-of-bounds Read","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:a316e97a51f48293086536301013fd3ec175facc3e094f755401de240e96f9ab · sha256:3f8752a8b982b6db… · /containers/cna/problemTypes/0/descriptions/0
{"cweId":"CWE-193","description":"CWE-193: Off-by-one Error","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:a316e97a51f48293086536301013fd3ec175facc3e094f755401de240e96f9ab · sha256:3f8752a8b982b6db… · /containers/cna/problemTypes/1/descriptions/0

Source references

2 source assertions
{"tags":["exploit"],"url":"https://github.com/bacnet-stack/bacnet-stack/security/advisories/GHSA-7545-3fpx-4xw3"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:a316e97a51f48293086536301013fd3ec175facc3e094f755401de240e96f9ab · sha256:3f8752a8b982b6db… · /containers/adp/0/references/0
{"name":"https://github.com/bacnet-stack/bacnet-stack/security/advisories/GHSA-7545-3fpx-4xw3","tags":["x_refsource_CONFIRM"],"url":"https://github.com/bacnet-stack/bacnet-stack/security/advisories/GHSA-7545-3fpx-4xw3"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:a316e97a51f48293086536301013fd3ec175facc3e094f755401de240e96f9ab · sha256:3f8752a8b982b6db… · /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.

← Back to CVE Explorer