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CVE-2026-55687

ESF-IDF is the Espressif Internet of Things (IOT) Development Framework. Versions 6.0.1, 5.5.4, 5.4.4, 5.3.5, and possibly prior contain an out-of-bounds write in jpeg_parse_dqt_marker() in components/esp_driver_jpeg/jpeg_parse_marker.c because the attacker-controlled DQT marker Tq nibble is used as an index into the qt_tbl array without validating that it is in the range 0..3, allowing malformed JPEG input to corrupt stack memory and reliably trigger a denial of service. This issue is fixed in
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:3cb30d9106bbadf3fa896bc23fe33c5f926737e0f9fe64bc5714e5c30520db37
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-121","description":"CWE-121: Stack-based Buffer Overflow","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:52a3f623cb25931e2031ac8386b09ac19640467b187b33ca6fd25dc232b763f3 · sha256:c18ed4f1757bd48f… · /containers/cna/problemTypes/0/descriptions/0

{"cweId":"CWE-787","description":"CWE-787: Out-of-bounds Write","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:52a3f623cb25931e2031ac8386b09ac19640467b187b33ca6fd25dc232b763f3 · sha256:c18ed4f1757bd48f… · /containers/cna/problemTypes/1/descriptions/0

Affected products and versions

1 source assertion
{"product":"esp-idf","vendor":"espressif","versions":[{"status":"affected","version":">= 6.0.0, < 6.0.2"},{"status":"affected","version":">= 5.5.0, <= 5.5.4"},{"status":"affected","version":">= 5.4.0, <= 5.4.4"},{"status":"affected","version":"<= 5.3.5"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:52a3f623cb25931e2031ac8386b09ac19640467b187b33ca6fd25dc232b763f3 · sha256:c18ed4f1757bd48f… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"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:v2:52a3f623cb25931e2031ac8386b09ac19640467b187b33ca6fd25dc232b763f3 · sha256:c18ed4f1757bd48f… · /containers/cna/metrics/0/cvssV3_1

CWE assertions

2 source assertions
{"cweId":"CWE-121","description":"CWE-121: Stack-based Buffer Overflow","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:52a3f623cb25931e2031ac8386b09ac19640467b187b33ca6fd25dc232b763f3 · sha256:c18ed4f1757bd48f… · /containers/cna/problemTypes/0/descriptions/0
{"cweId":"CWE-787","description":"CWE-787: Out-of-bounds Write","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:52a3f623cb25931e2031ac8386b09ac19640467b187b33ca6fd25dc232b763f3 · sha256:c18ed4f1757bd48f… · /containers/cna/problemTypes/1/descriptions/0

Source references

7 source assertions
{"name":"https://github.com/espressif/esp-idf/commit/303c01305acb8ae5c4eb24a1786300681b4822a4","tags":["x_refsource_MISC"],"url":"https://github.com/espressif/esp-idf/commit/303c01305acb8ae5c4eb24a1786300681b4822a4"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:52a3f623cb25931e2031ac8386b09ac19640467b187b33ca6fd25dc232b763f3 · sha256:c18ed4f1757bd48f… · /containers/cna/references/1
{"name":"https://github.com/espressif/esp-idf/commit/6ffafe8e93142ef8ffe51a6311d4abfc0f10fe77","tags":["x_refsource_MISC"],"url":"https://github.com/espressif/esp-idf/commit/6ffafe8e93142ef8ffe51a6311d4abfc0f10fe77"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:52a3f623cb25931e2031ac8386b09ac19640467b187b33ca6fd25dc232b763f3 · sha256:c18ed4f1757bd48f… · /containers/cna/references/2
{"name":"https://github.com/espressif/esp-idf/commit/7ccfc00f39faf1b7e5919f45b56fe44ba699d7c1","tags":["x_refsource_MISC"],"url":"https://github.com/espressif/esp-idf/commit/7ccfc00f39faf1b7e5919f45b56fe44ba699d7c1"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:52a3f623cb25931e2031ac8386b09ac19640467b187b33ca6fd25dc232b763f3 · sha256:c18ed4f1757bd48f… · /containers/cna/references/3
{"name":"https://github.com/espressif/esp-idf/commit/82c5c2dad45313786fb7e973059bc9094d95c3b2","tags":["x_refsource_MISC"],"url":"https://github.com/espressif/esp-idf/commit/82c5c2dad45313786fb7e973059bc9094d95c3b2"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:52a3f623cb25931e2031ac8386b09ac19640467b187b33ca6fd25dc232b763f3 · sha256:c18ed4f1757bd48f… · /containers/cna/references/4
{"name":"https://github.com/espressif/esp-idf/commit/f2df45bcedef11354e83c31a9718d680a68422c4","tags":["x_refsource_MISC"],"url":"https://github.com/espressif/esp-idf/commit/f2df45bcedef11354e83c31a9718d680a68422c4"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:52a3f623cb25931e2031ac8386b09ac19640467b187b33ca6fd25dc232b763f3 · sha256:c18ed4f1757bd48f… · /containers/cna/references/5
{"name":"https://github.com/espressif/esp-idf/releases/tag/v6.0.2","tags":["x_refsource_MISC"],"url":"https://github.com/espressif/esp-idf/releases/tag/v6.0.2"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:52a3f623cb25931e2031ac8386b09ac19640467b187b33ca6fd25dc232b763f3 · sha256:c18ed4f1757bd48f… · /containers/cna/references/6
{"name":"https://github.com/espressif/esp-idf/security/advisories/GHSA-v6r2-f6p2-88cj","tags":["x_refsource_CONFIRM"],"url":"https://github.com/espressif/esp-idf/security/advisories/GHSA-v6r2-f6p2-88cj"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:52a3f623cb25931e2031ac8386b09ac19640467b187b33ca6fd25dc232b763f3 · sha256:c18ed4f1757bd48f… · /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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