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CVE-2026-45160

ESF-IDF is the Espressif Internet of Things (IOT) Development Framework. In versions 5.2.7, 5.3.5, 5.4.4, 5.5.4, and 6.0.1, an out-of-bounds read flaw exists in the DHCP server option parser (parse_options() in components/lwip/apps/dhcpserver/dhcpserver.c) shipped with ESP-IDF's lwIP component. The parser walks the BOOTP/DHCP options field without validating that each option's length byte and declared payload length stay within the received packet buffer. A crafted DHCP request can cause the par
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:ac6093d9df80ae462bda274c68a73404450e7cf2b431cd715ff9495cd95d3efe
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
0

Affected products and versions

1 source assertion
{"product":"esp-idf","vendor":"espressif","versions":[{"status":"affected","version":"= 5.2.7"},{"status":"affected","version":"= 5.3.5"},{"status":"affected","version":"= 5.4.4"},{"status":"affected","version":"= 5.5.4"},{"status":"affected","version":"= 6.0.1"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:7adce9bd9a1ac44d973161f6098000ff244f610c6fd93d01938b5a396166b39b · sha256:1febba6c61489ee2… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"attackComplexity":"LOW","attackVector":"ADJACENT_NETWORK","availabilityImpact":"HIGH","baseScore":6.5,"baseSeverity":"MEDIUM","confidentialityImpact":"NONE","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:A/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:v2:7adce9bd9a1ac44d973161f6098000ff244f610c6fd93d01938b5a396166b39b · sha256:1febba6c61489ee2… · /containers/cna/metrics/0/cvssV3_1

CWE assertions

1 source assertion
{"cweId":"CWE-125","description":"CWE-125: Out-of-bounds Read","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:7adce9bd9a1ac44d973161f6098000ff244f610c6fd93d01938b5a396166b39b · sha256:1febba6c61489ee2… · /containers/cna/problemTypes/0/descriptions/0

Source references

7 source assertions
{"name":"https://github.com/espressif/esp-idf/commit/2bf4dd12002dbae60a4b21abff010ecb2b8ee82b","tags":["x_refsource_MISC"],"url":"https://github.com/espressif/esp-idf/commit/2bf4dd12002dbae60a4b21abff010ecb2b8ee82b"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:7adce9bd9a1ac44d973161f6098000ff244f610c6fd93d01938b5a396166b39b · sha256:1febba6c61489ee2… · /containers/cna/references/1
{"name":"https://github.com/espressif/esp-idf/commit/2da2db43fd7e0bcff9e7b95f54f388296bb6f911","tags":["x_refsource_MISC"],"url":"https://github.com/espressif/esp-idf/commit/2da2db43fd7e0bcff9e7b95f54f388296bb6f911"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:7adce9bd9a1ac44d973161f6098000ff244f610c6fd93d01938b5a396166b39b · sha256:1febba6c61489ee2… · /containers/cna/references/2
{"name":"https://github.com/espressif/esp-idf/commit/8b4b5d5301815198d177974ffc24848f47748248","tags":["x_refsource_MISC"],"url":"https://github.com/espressif/esp-idf/commit/8b4b5d5301815198d177974ffc24848f47748248"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:7adce9bd9a1ac44d973161f6098000ff244f610c6fd93d01938b5a396166b39b · sha256:1febba6c61489ee2… · /containers/cna/references/3
{"name":"https://github.com/espressif/esp-idf/commit/9f713dbc94982d917f2d12964b233cd9efa4aeba","tags":["x_refsource_MISC"],"url":"https://github.com/espressif/esp-idf/commit/9f713dbc94982d917f2d12964b233cd9efa4aeba"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:7adce9bd9a1ac44d973161f6098000ff244f610c6fd93d01938b5a396166b39b · sha256:1febba6c61489ee2… · /containers/cna/references/4
{"name":"https://github.com/espressif/esp-idf/commit/d51b1076092487e533eadf8b48c9c8579d3a6712","tags":["x_refsource_MISC"],"url":"https://github.com/espressif/esp-idf/commit/d51b1076092487e533eadf8b48c9c8579d3a6712"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:7adce9bd9a1ac44d973161f6098000ff244f610c6fd93d01938b5a396166b39b · sha256:1febba6c61489ee2… · /containers/cna/references/5
{"name":"https://github.com/espressif/esp-idf/commit/fba5f995436a3e3139f768b6d8f1a74d5ce1d318","tags":["x_refsource_MISC"],"url":"https://github.com/espressif/esp-idf/commit/fba5f995436a3e3139f768b6d8f1a74d5ce1d318"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:7adce9bd9a1ac44d973161f6098000ff244f610c6fd93d01938b5a396166b39b · sha256:1febba6c61489ee2… · /containers/cna/references/6
{"name":"https://github.com/espressif/esp-idf/security/advisories/GHSA-g764-gwc3-75m5","tags":["x_refsource_CONFIRM"],"url":"https://github.com/espressif/esp-idf/security/advisories/GHSA-g764-gwc3-75m5"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:7adce9bd9a1ac44d973161f6098000ff244f610c6fd93d01938b5a396166b39b · sha256:1febba6c61489ee2… · /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.

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