{"id":"CVE-2026-101887","url":"https://www.cyber-defence.io/tools/cve/CVE-2026-101887","generatedAt":"2026-10-28T03:58:37.824Z","title":"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…","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.","published":"2026-10-01T03:16:58.000Z","lastModified":"2026-10-01T20:17:21.000Z","status":"Awaiting Analysis","sourceIdentifier":"disclosure@vulncheck.com","cvss":{"version":"4.0","score":2.1,"severity":"LOW","vector":"CVSS:4.0/AV:A/AC:L/AT:P/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/M"},"cwe":["CWE-369"],"affected":[],"epss":{"score":0.00152,"percentile":0.04343,"date":"2026-10-27","history":[{"date":"2026-10-02","score":0.00152,"percentile":0.03755}]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"low","text":"Lower severity and a low EPSS score (0.15%). Track it; it rarely justifies an emergency change on its own."},"changes":[{"kind":"new","label":"New CVE","at":"2026-10-01T03:16:58.000Z","detail":{"score":"2.1","severity":"LOW","publishedAt":"2026-10-01T03:16:58.493Z"},"summary":"New CVE, low severity (CVSS 2.1)."}],"references":[{"url":"https://github.com/arkq/bluez-alsa/commit/1a84465dd860d1be9dcf62339c6273e9e0632dd2","source":"disclosure@vulncheck.com"},{"url":"https://www.vulncheck.com/advisories/bluealsa-bluealsad-lc3plus-decoder-division-by-zero-dos","source":"disclosure@vulncheck.com"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-101887","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}