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Mon, 14 Sep 2026 21:00:00 +0000
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ssvc
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Sun, 13 Sep 2026 20:30:00 +0000
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Arduino
Arduino arduinocore-avr |
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| Vendors & Products |
Arduino
Arduino arduinocore-avr |
Fri, 11 Sep 2026 23:45:00 +0000
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| Description | ArduinoCore-avr contains the source code and configuration files of the Arduino AVR Boards platform. A vulnerability in versions prior to 1.8.8 allows an attacker to trigger a stack-based buffer overflow when concatenating floating-point values of sufficiently large magnitude onto an Arduino String object. By passing values near the extremes of the float or double range to `String::concat(float)`, `String::concat(double)`, `String::operator+=()`, or the `+` operator with a float/double operand, `dtostrf()` writes beyond the fixed-size stack buffer, causing memory corruption and denial of service. Under specific conditions, this could enable arbitrary code execution on AVR-based Arduino boards. The fix is included starting from the `1.8.8 `release. | |
| Title | ArduinoCore-AVR: Stack-Based Buffer Overflow in String float/double concatenation handler | |
| Weaknesses | CWE-120 | |
| References |
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| Metrics |
cvssV4_0
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Projects
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Status: PUBLISHED
Assigner: GitHub_M
Published:
Updated: 2026-09-14T18:17:38.993Z
Reserved: 2026-05-21T15:33:08.291Z
Link: CVE-2026-48490
Updated: 2026-09-14T17:06:23.978Z
Status : Received
Published: 2026-09-11T21:17:10.100
Modified: 2026-09-14T19:17:23.083
Link: CVE-2026-48490
No data.
OpenCVE Enrichment
Updated: 2026-09-15T20:15:14Z