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CVE-2026-10642

The Zephyr PL011 UART driver (drivers/serial/uart_pl011.c) contains an unbounded software loop in pl011_irq_tx_enable() that repeatedly invokes the interrupt-driven application callback while the TX interrupt mask bit (PL011_IMSC_TXIM) is set, to work around the controller's level-transition TX-interrupt behavior. When CTS hardware flow control is enabled (devicetree hw-flow-control or runtime UART_CFG_FLOW_CTRL_RTS_CTS) and the wired serial peer de-asserts CTS, the controller stops draining th
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:b7fac4d55ea8301357579b8844738ecb899c76b248a278b5a0d5e8b9d8cd48ab
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-835","description":"dos","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:509bee28910ba340a927b3621b3485aa808d11c8f96006139a60d5f809eb5e99 · sha256:153ea1f359dc8edc… · /containers/cna/problemTypes/0/descriptions/0

{"cweId":"CWE-835","description":"CWE-835 Loop with Unreachable Exit Condition ('Infinite Loop')","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:509bee28910ba340a927b3621b3485aa808d11c8f96006139a60d5f809eb5e99 · sha256:153ea1f359dc8edc… · /containers/adp/0/problemTypes/0/descriptions/0

Affected products and versions

1 source assertion
{"collectionURL":"https://github.com/zephyrproject-rtos/zephyr","defaultStatus":"unaffected","packageName":"zephyr","product":"zephyr","programFiles":["drivers/serial/uart_pl011.c"],"vendor":"zephyrproject","versions":[{"lessThan":"4.5.0","status":"affected","version":"4.1.0","versionType":"semver"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:509bee28910ba340a927b3621b3485aa808d11c8f96006139a60d5f809eb5e99 · sha256:153ea1f359dc8edc… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"baseScore":4.6,"baseSeverity":"MEDIUM","vectorString":"CVSS:3.1/AV:P/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:v2:509bee28910ba340a927b3621b3485aa808d11c8f96006139a60d5f809eb5e99 · sha256:153ea1f359dc8edc… · /containers/cna/metrics/0/cvssV3_1

CWE assertions

2 source assertions
{"cweId":"CWE-835","description":"dos","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:509bee28910ba340a927b3621b3485aa808d11c8f96006139a60d5f809eb5e99 · sha256:153ea1f359dc8edc… · /containers/cna/problemTypes/0/descriptions/0
{"cweId":"CWE-835","description":"CWE-835 Loop with Unreachable Exit Condition ('Infinite Loop')","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:509bee28910ba340a927b3621b3485aa808d11c8f96006139a60d5f809eb5e99 · sha256:153ea1f359dc8edc… · /containers/adp/0/problemTypes/0/descriptions/0

Source references

2 source assertions
{"name":"Fix commit","tags":["patch"],"url":"https://github.com/zephyrproject-rtos/zephyr/commit/68e702294b711eadfe7b4fadedd46d7c87fe8f3d"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:509bee28910ba340a927b3621b3485aa808d11c8f96006139a60d5f809eb5e99 · sha256:153ea1f359dc8edc… · /containers/cna/references/0
{"name":"GHSA-3fgh-73jh-2q5j","url":"https://github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-3fgh-73jh-2q5j"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:509bee28910ba340a927b3621b3485aa808d11c8f96006139a60d5f809eb5e99 · sha256:153ea1f359dc8edc… · /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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