CVE-2026-98247: linux
Vulnerability summary
CVE-2026-98247 is a vulnerability in linux with no CVSS score yet. EPSS estimates a 0.21% chance of exploitation in the next 30 days, higher than 10% of scored vulnerabilities.
Advisory lineage
Upstream 0 · Downstream 1 · Related 1Timeline
- 06-10-2026PublishedVulnerability first disclosed.
- 19-10-2026Last modifiedVulnerability information updated.
Description
In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hci_codec: validate vendor codec count length The Read Local Supported Codecs parsers consume the variable-sized standard codec array before parsing the vendor codec count. Although the initial reply-size check includes a vendor count byte in the fixed layout, it does not guarantee that the byte remains after the standard codec array. If a controller reply ends immediately after that array, calculating the vendor codec array size reads vnd_codecs->num beyond the skb data. Use skb_pull_data() to validate and consume each codec header before using its count in both command variants.
CVSS metrics
Risk metrics not yet published.
EPSS trend
Probability
0.21%
Chance of exploitation in the next 30 days
Percentile
10%
Versus all other CVEs
30-day change
Change unavailable
Change unavailable
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeNo weakness data has been published for this record.
Affected systems
Ubuntu142 products
- linuxAll versions (No fix recorded)
- linux-allwinner-5.19All versions (No fix recorded)
- linux-awsAll versions (No fix recorded)
- linux-aws-5.0All versions (No fix recorded)
- linux-aws-5.11All versions (No fix recorded)
Debian1 product
- linuxAll versions (No fix recorded) | < 6.1.190-1 | < 6.12.113-1 | < 7.2.8-1
Linux1 product
- linux≥ 8961987f3f5fa2f2618e72304d013c8dd5e604a6, < 9c04b9a4d08b95dee901d24b7607c4cbd65fa0a8 | ≥ 8961987f3f5fa2f2618e72304d013c8dd5e604a6, < a6da782fefae611e68a1aa79644065fc8ca5abcd | ≥ 8961987f3f5fa2f2618e72304d013c8dd5e604a6, < e4cfd3c4299105237458b27958bd7b0aa4c60795 | ≥ 8961987f3f5fa2f2618e72304d013c8dd5e604a6, < f49a543d76d48f184b34225d9c0e2fc4cbdea8ec | ≥ 8961987f3f5fa2f2618e72304d013c8dd5e604a6, < 12a82819b0cada6e304790b1097f8f9006eb6123 | ≥ 8961987f3f5fa2f2618e72304d013c8dd5e604a6, < d0795cfd6f655f4de84868a4f4bb41a03f037b3d | 5.16
3 vendors · 144 products