CVE-2026-38427

An issue in fetchjpg in xdrv10scripter.ino in Tasmota through 15.3.0.3 allows a remote attacker to cause heap buffer overflow. The Content-Length from a JPEG stream is stored in a uint16t variable; values above 65535 wrap around, causing allocation of a smaller buffer than the data actually read...

PT-2026-43711

An issue in fetch jpg in xdrv 10 scripter.ino in Tasmota through 15.3.0.3 allows a remote attacker to cause heap buffer overflow. The Content-Length from a JPEG stream is stored in a uint16 t variable; values above 65535 wrap around, causing allocation of a smaller buffer than the data actually...

CVE-2026-38427

CVE-2026-38427 : In Tasmota up to 15.3.0.3, fetch_jpg() in xdrv_10_scripter.ino stores the JPEG Content-Length in a uint16_t. Values > 65535 wrap around, causing allocation of a smaller heap buffer than the data read and a heap buffer overflow. This enables a remote attacker over the network t...