Description
Speex (libspeex) through 1.2.1 contains an out-of-bounds write vulnerability in speex_bits_read_whole_bytes() in libspeex/bits.c that mishandles length truncation for non-owned SpeexBits buffers. Attackers can stream crafted Speex data into buffers set up with speex_bits_init_buffer() or speex_bits_set_bit_buffer() to corrupt heap or stack memory and crash applications.
Metrics
CVSS 3.1 6.5/10
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:HWeakness enumeration
Affected software
Source: the vendor's advisory (CNA). NVD analysis pending.
| Vendor | Product | Versions |
|---|---|---|
| xiph | speex | <= 1.2.1 |
References
- https://github.com/xiph/speex
- https://github.com/xiph/speex/blob/Speex-1.2.1/libspeex/bits.c#L177
- https://github.com/xiph/speex/issues/42
- https://gitlab.xiph.org/xiph/speex/-/merge_requests/32
- https://hackmd.io/@haindpwn/speex-bits-read-whole-bytes-oob-write
- https://www.vulncheck.com/advisories/speex-through-1.2.1-out-of-bounds-write-via-speex-bits-read-whole-bytes
- https://hackmd.io/@haindpwn/cve-2026-116741-speex-bits-read-whole-bytes-oob-write
Timeline
- Published
- Oct 26, 2026
- Last modified
- Nov 2, 2026
- NVD status
- Awaiting Analysis