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CVE-2026-14629

A flaw has been found in RT-Thread up to 5.2.2. Affected is the function read/write/sys_ioctl of the file components/lwp/lwp_syscall.c of the component Parameter Handler. Executing a manipulation can lead to divide by zero. The attack may be launched remotely. The exploit has been published and may be used. The pull request to fix this issue awaits acceptance.
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:3b4f65f002c80d8ad8888660b02951d0dd4f5fa3e7f45cf4dd4d6c2238d3c697
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
2

Preserved source conflicts

No provider value was silently selected as the winner.

cvss · 4 assertions

{"metric":{"baseScore":4.3,"baseSeverity":"MEDIUM","vectorString":"CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:P/RL:X/RC:R","version":"3.0"},"metric_type":"cvssV3_0"}

  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:3e623dbd463576e3fbd9b83953c4c1d4f148ba8aff421a0749cee17f37f44117 · sha256:0aa3234c8ebb806d… · /containers/cna/metrics/2/cvssV3_0

{"metric":{"baseScore":4,"vectorString":"AV:N/AC:L/Au:S/C:N/I:N/A:P/E:POC/RL:ND/RC:UR","version":"2.0"},"metric_type":"cvssV2_0"}

  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:3e623dbd463576e3fbd9b83953c4c1d4f148ba8aff421a0749cee17f37f44117 · sha256:0aa3234c8ebb806d… · /containers/cna/metrics/3/cvssV2_0

{"metric":{"baseScore":5.3,"baseSeverity":"MEDIUM","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P","version":"4.0"},"metric_type":"cvssV4_0"}

  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:3e623dbd463576e3fbd9b83953c4c1d4f148ba8aff421a0749cee17f37f44117 · sha256:0aa3234c8ebb806d… · /containers/cna/metrics/0/cvssV4_0

{"metric":{"baseScore":4.3,"baseSeverity":"MEDIUM","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:P/RL:X/RC:R","version":"3.1"},"metric_type":"cvssV3_1"}

  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:3e623dbd463576e3fbd9b83953c4c1d4f148ba8aff421a0749cee17f37f44117 · sha256:0aa3234c8ebb806d… · /containers/cna/metrics/1/cvssV3_1
cwe · 2 assertions

{"cweId":"CWE-369","description":"Divide By Zero","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:3e623dbd463576e3fbd9b83953c4c1d4f148ba8aff421a0749cee17f37f44117 · sha256:0aa3234c8ebb806d… · /containers/cna/problemTypes/0/descriptions/0

{"cweId":"CWE-404","description":"Denial of Service","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:3e623dbd463576e3fbd9b83953c4c1d4f148ba8aff421a0749cee17f37f44117 · sha256:0aa3234c8ebb806d… · /containers/cna/problemTypes/1/descriptions/0

Affected products and versions

1 source assertion
{"cpes":["cpe:2.3:a:rt-thread:rt-thread:*:*:*:*:*:*:*:*"],"modules":["Parameter Handler"],"product":"RT-Thread","vendor":"n/a","versions":[{"status":"affected","version":"5.2.0"},{"status":"affected","version":"5.2.1"},{"status":"affected","version":"5.2.2"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:3e623dbd463576e3fbd9b83953c4c1d4f148ba8aff421a0749cee17f37f44117 · sha256:0aa3234c8ebb806d… · /containers/cna/affected/0

Provider-owned CVSS observations

4 source assertions
{"metric":{"baseScore":4.3,"baseSeverity":"MEDIUM","vectorString":"CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:P/RL:X/RC:R","version":"3.0"},"metric_type":"cvssV3_0"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:3e623dbd463576e3fbd9b83953c4c1d4f148ba8aff421a0749cee17f37f44117 · sha256:0aa3234c8ebb806d… · /containers/cna/metrics/2/cvssV3_0
{"metric":{"baseScore":4,"vectorString":"AV:N/AC:L/Au:S/C:N/I:N/A:P/E:POC/RL:ND/RC:UR","version":"2.0"},"metric_type":"cvssV2_0"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:3e623dbd463576e3fbd9b83953c4c1d4f148ba8aff421a0749cee17f37f44117 · sha256:0aa3234c8ebb806d… · /containers/cna/metrics/3/cvssV2_0
{"metric":{"baseScore":5.3,"baseSeverity":"MEDIUM","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P","version":"4.0"},"metric_type":"cvssV4_0"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:3e623dbd463576e3fbd9b83953c4c1d4f148ba8aff421a0749cee17f37f44117 · sha256:0aa3234c8ebb806d… · /containers/cna/metrics/0/cvssV4_0
{"metric":{"baseScore":4.3,"baseSeverity":"MEDIUM","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:P/RL:X/RC:R","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:3e623dbd463576e3fbd9b83953c4c1d4f148ba8aff421a0749cee17f37f44117 · sha256:0aa3234c8ebb806d… · /containers/cna/metrics/1/cvssV3_1

CWE assertions

2 source assertions
{"cweId":"CWE-369","description":"Divide By Zero","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:3e623dbd463576e3fbd9b83953c4c1d4f148ba8aff421a0749cee17f37f44117 · sha256:0aa3234c8ebb806d… · /containers/cna/problemTypes/0/descriptions/0
{"cweId":"CWE-404","description":"Denial of Service","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:3e623dbd463576e3fbd9b83953c4c1d4f148ba8aff421a0749cee17f37f44117 · sha256:0aa3234c8ebb806d… · /containers/cna/problemTypes/1/descriptions/0

Source references

7 source assertions
{"tags":["product"],"url":"https://github.com/RT-Thread/rt-thread/"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:3e623dbd463576e3fbd9b83953c4c1d4f148ba8aff421a0749cee17f37f44117 · sha256:0aa3234c8ebb806d… · /containers/cna/references/6
{"tags":["exploit","issue-tracking"],"url":"https://github.com/RT-Thread/rt-thread/issues/11429"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:3e623dbd463576e3fbd9b83953c4c1d4f148ba8aff421a0749cee17f37f44117 · sha256:0aa3234c8ebb806d… · /containers/cna/references/4
{"tags":["issue-tracking","patch"],"url":"https://github.com/RT-Thread/rt-thread/pull/11453"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:3e623dbd463576e3fbd9b83953c4c1d4f148ba8aff421a0749cee17f37f44117 · sha256:0aa3234c8ebb806d… · /containers/cna/references/5
{"name":"CVE-2026-14629 | CVE Analysis and Report","tags":["third-party-advisory"],"url":"https://vuldb.com/cve/CVE-2026-14629"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:3e623dbd463576e3fbd9b83953c4c1d4f148ba8aff421a0749cee17f37f44117 · sha256:0aa3234c8ebb806d… · /containers/cna/references/2
{"name":"Submit #845610 | RT-Thread v5.2.2 Improper Handling of Parameters","tags":["third-party-advisory"],"url":"https://vuldb.com/submit/845610"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:3e623dbd463576e3fbd9b83953c4c1d4f148ba8aff421a0749cee17f37f44117 · sha256:0aa3234c8ebb806d… · /containers/cna/references/3
{"name":"VDB-376145 | RT-Thread Parameter lwp_syscall.c sys_ioctl divide by zero","tags":["vdb-entry","technical-description"],"url":"https://vuldb.com/vuln/376145"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:3e623dbd463576e3fbd9b83953c4c1d4f148ba8aff421a0749cee17f37f44117 · sha256:0aa3234c8ebb806d… · /containers/cna/references/0
{"name":"VDB-376145 | CTI Indicators (IOB, IOC, TTP, IOA)","tags":["signature","permissions-required"],"url":"https://vuldb.com/vuln/376145/cti"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:3e623dbd463576e3fbd9b83953c4c1d4f148ba8aff421a0749cee17f37f44117 · sha256:0aa3234c8ebb806d… · /containers/cna/references/1

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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