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CVE-2026-38755

A heap overflow in the evalcommand() function (shell/ash.c) of Busybox v1.38.0 allows attackers to cause a Denial of Service (DoS) via supplying a crafted input.
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:a27b4875ee9001dcda254cdb8877bde7f3ffc63134d98be3627835b74b0000b4
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
2

Preserved source conflicts

No provider value was silently selected as the winner.

cvss · 2 assertions

{"metric":{"attackComplexity":"HIGH","attackVector":"LOCAL","availabilityImpact":"LOW","baseScore":2.9,"baseSeverity":"LOW","confidentialityImpact":"NONE","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L","version":"3.1"},"metric_type":"cvssV3_1"}

  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:8201dfd007e2c6059a06f87bd4aec1aa528c7785d46a1041c49d4121520b09ff · sha256:7d20261b198a7c02… · /containers/cna/metrics/0/cvssV3_1

{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":7.5,"baseSeverity":"HIGH","confidentialityImpact":"NONE","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","version":"3.1"},"metric_type":"cvssV3_1"}

  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:8201dfd007e2c6059a06f87bd4aec1aa528c7785d46a1041c49d4121520b09ff · sha256:7d20261b198a7c02… · /containers/adp/0/metrics/0/cvssV3_1
cwe · 2 assertions

{"cweId":"CWE-674","description":"CWE-674 Uncontrolled Recursion","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:8201dfd007e2c6059a06f87bd4aec1aa528c7785d46a1041c49d4121520b09ff · sha256:7d20261b198a7c02… · /containers/cna/problemTypes/0/descriptions/0

{"cweId":"CWE-122","description":"CWE-122 Heap-based Buffer Overflow","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:8201dfd007e2c6059a06f87bd4aec1aa528c7785d46a1041c49d4121520b09ff · sha256:7d20261b198a7c02… · /containers/adp/0/problemTypes/0/descriptions/0

Affected products and versions

1 source assertion
{"defaultStatus":"unknown","product":"BusyBox","vendor":"BusyBox","versions":[{"lessThanOrEqual":"1.38.0","status":"affected","version":"0.52","versionType":"custom"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:8201dfd007e2c6059a06f87bd4aec1aa528c7785d46a1041c49d4121520b09ff · sha256:7d20261b198a7c02… · /containers/cna/affected/0

Provider-owned CVSS observations

2 source assertions
{"metric":{"attackComplexity":"HIGH","attackVector":"LOCAL","availabilityImpact":"LOW","baseScore":2.9,"baseSeverity":"LOW","confidentialityImpact":"NONE","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:8201dfd007e2c6059a06f87bd4aec1aa528c7785d46a1041c49d4121520b09ff · sha256:7d20261b198a7c02… · /containers/cna/metrics/0/cvssV3_1
{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":7.5,"baseSeverity":"HIGH","confidentialityImpact":"NONE","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:8201dfd007e2c6059a06f87bd4aec1aa528c7785d46a1041c49d4121520b09ff · sha256:7d20261b198a7c02… · /containers/adp/0/metrics/0/cvssV3_1

CWE assertions

2 source assertions
{"cweId":"CWE-674","description":"CWE-674 Uncontrolled Recursion","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:8201dfd007e2c6059a06f87bd4aec1aa528c7785d46a1041c49d4121520b09ff · sha256:7d20261b198a7c02… · /containers/cna/problemTypes/0/descriptions/0
{"cweId":"CWE-122","description":"CWE-122 Heap-based Buffer Overflow","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:8201dfd007e2c6059a06f87bd4aec1aa528c7785d46a1041c49d4121520b09ff · sha256:7d20261b198a7c02… · /containers/adp/0/problemTypes/0/descriptions/0

Source references

2 source assertions
{"url":"https://busybox.net"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:8201dfd007e2c6059a06f87bd4aec1aa528c7785d46a1041c49d4121520b09ff · sha256:7d20261b198a7c02… · /containers/cna/references/0
{"url":"https://lists.busybox.net/pipermail/busybox/2026-June/092354.html"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:8201dfd007e2c6059a06f87bd4aec1aa528c7785d46a1041c49d4121520b09ff · sha256:7d20261b198a7c02… · /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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