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CVE-2026-116741

Speex through 1.2.1 Out-of-Bounds Write via speex_bits_read_whole_bytes

8.3 HighFix available

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.

Attack profile

How easy it is to exploit

Attack vector
Network
Complexity
Low
Privileges needed
None
User interaction
None

What an attacker can affect

Confidentiality
None
Integrity
Low
Availability
High

Exploit likelihood

0.42%Unchanged since Oct 27, 2026
90%50%10%1%

What each source reports

CVE List Score used 8.3

Speex through 1.2.1 Out-of-Bounds Write via speex_bits_read_whole_bytes

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.

Record
CVE-2026-116741
CVSS 4.0
8.3 HighCVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:L/VA:H/SC:N/SI:N/SA:N
CVSS 3.1
6.5 MediumCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:H
Weakness
CWE-787
Updated
2026-11-02
EUVDEUVD-2026-110489 8.3

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.

Record
EUVD-2026-110489
CVSS 4.0
8.3 HighCVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:L/VA:H/SC:N/SI:N/SA:N
Updated
2026-11-03
GitHub AdvisoriesGHSA-jmfj-jxhf-c4c3 8.3

Speex (libspeex) through 1.2.1 contains an out-of-bounds write vulnerability in...

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.

Record
GHSA-jmfj-jxhf-c4c3
CVSS 4.0
8.3 HighCVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:L/VA:H/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/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
CVSS 3.1
6.5 MediumCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:H
Weakness
CWE-787
Updated
2026-11-03
NVD 8.3

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.

Record
CVE-2026-116741
CVSS 4.0
8.3 HighCVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:L/VA:H/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/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
CVSS 3.1
6.5 MediumCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:H
Weakness
CWE-787
Updated
2026-11-03
OSV 8.3

Speex through 1.2.1 Out-of-Bounds Write via speex_bits_read_whole_bytes

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.

Record
CVE-2026-116741
CVSS 4.0
8.3 HighCVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:L/VA:H/SC:N/SI:N/SA:N
Weakness
CWE-787
Updated
2026-11-04
OSVDEBIAN-CVE-2026-116741 8.3

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.

Record
DEBIAN-CVE-2026-116741
CVSS 4.0
8.3 HighCVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:L/VA:H/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/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Updated
2026-11-03
OSVUBUNTU-CVE-2026-116741 8.3

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.

Record
UBUNTU-CVE-2026-116741
CVSS 4.0
8.3 HighCVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:L/VA:H/SC:N/SI:N/SA:N
CVSS 3.1
6.5 MediumCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:H
Updated
2026-11-02
OSVAZL-111115 No score

CVE-2026-116741 affecting package speex 1.2.0-6

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.

Record
AZL-111115
Updated
2026-11-05
OSVopenSUSE-SU-2026:12336-1 No score

libspeex1-1.2.1-3.1 on GA media

These are all security issues fixed in the libspeex1-1.2.1-3.1 package on the GA media of openSUSE Tumbleweed.

Record
openSUSE-SU-2026:12336-1
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
speex
Azure Linux:3
 through 1.2.0-6 None known
speex
Debian:12
 All versions, plus listed versions
1.2.1-21.2.1-3
 None known
speex
Debian:13
 All versions, plus listed versions
1.2.1-3
 None known
speex
Debian:14
 All versions, plus listed versions
1.2.1-3
 None known
speex
Ubuntu:Pro:16.04:LTS
 All versions, plus listed versions
1.2~rc1.2-1ubuntu11.2~rc1.2-1ubuntu1+esm1
 None known
speex
Ubuntu:18.04:LTS
 All versions, plus listed versions
1.2~rc1.2-1ubuntu11.2~rc1.2-1ubuntu21.2~rc1.2-1ubuntu2.1
 None known
speex
Ubuntu:20.04:LTS
 All versions, plus listed versions
1.2~rc1.2-1ubuntu21.2~rc1.2-1.1ubuntu11.2~rc1.2-1.1ubuntu1.20.04.1
 None known
speex
Ubuntu:22.04:LTS
 All versions, plus listed versions
1.2~rc1.2-1.1ubuntu11.2~rc1.2-1.1ubuntu21.2~rc1.2-1.1ubuntu3
 None known
speex
Ubuntu:24.04:LTS
 All versions, plus listed versions
1.2.1-2ubuntu11.2.1-2ubuntu21.2.1-2ubuntu2.24.04.1
 None known
speex
Ubuntu:26.10
 All versions, plus listed versions
1.2.1-3build1
 None known
speex
Ubuntu:26.04:LTS
 All versions, plus listed versions
1.2.1-31.2.1-3build1
 None known
speex
openSUSE:Tumbleweed
 before 1.2.1-3.1
1.2.1-3.1

History

History
RecordedChangedSources
factsOSV
referencesEUVD, GitHub Advisories, NVD, OSV
first indexedCVE List, EUVD, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2026-116741 is a high vulnerability (CVSS 8.3) in Xiph Speex, published October 26, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.42%, the 36th percentile. Fixed in speex 1.2.1-3.1.

References

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