CVE-2026-101887
Tenable Plugin
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Threat Intelligence Pending
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Description
BlueALSA (bluez-alsa/bluealsad) contains a division-by-zero vulnerability in the LC3plus sink decoder (a2dp-lc3plus.c, a2dp_lc3plus_dec_thread) that allows a Bluetooth-adjacent attacker to crash the daemon by sending a crafted RTP media header with an attacker-controlled frame count field set to zero. Attackers can establish an A2DP source connection with an LC3plus session negotiated against a victim running bluealsad as an A2DP sink and transmit a non-fragmented LC3plus media header with a zero frame count to trigger a SIGFPE in the decoding thread, causing a denial of service on builds compiled with LC3plus support enabled.
Quick Facts
| CVE ID | CVE-2026-101887 |
| CVSS Score | 3.5 |
| Vector | CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N |
| Published | 2026-10-01 |
| Exploited | No |
| CISA KEV | No |
| PoC | Not public |