Every CVE Search/ Get API key

CVE-2023-26767

Buffer Overflow vulnerability found in Liblouis v.3.24.0 allows a remote attacker to cause a...

7.5 HighFix available

Buffer Overflow vulnerability found in Liblouis v.3.24.0 allows a remote attacker to cause a denial of service via the lou_logFile function at logginc.c endpoint.

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
None
Availability
High

Exploit likelihood

1.36%Up 1.3 points since Mar 17, 2023
90%50%10%1%

What each source reports

NVD Score used 7.5

Buffer Overflow vulnerability found in Liblouis v.3.24.0 allows a remote attacker to cause a denial of service via the lou_logFile function at logginc.c endpoint.

Record
CVE-2023-26767
CVSS 3.1
7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness
CWE-120
Updated
2026-11-02
CVE List No score

Buffer Overflow vulnerability found in Liblouis v.3.24.0 allows a remote attacker to cause a denial of service via the lou_logFile function at logginc.c endpoint.

Record
CVE-2023-26767
Updated
2026-11-02
EUVDEUVD-2023-30560 0.0

Buffer Overflow vulnerability found in Liblouis v.3.24.0 allows a remote attacker to cause a denial of service via the lou_logFile function at logginc.c endpoint.

Record
EUVD-2023-30560
CVSS
0.0 NoneCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Updated
2026-11-02
GitHub AdvisoriesGHSA-ppv9-9pfj-8j4q 7.5

Buffer Overflow vulnerability found in Liblouis v.3.24.0 allows a remote attacker to cause a...

Buffer Overflow vulnerability found in Liblouis v.3.24.0 allows a remote attacker to cause a denial of service via the lou_logFile function at logginc.c endpoint.

Record
GHSA-ppv9-9pfj-8j4q
CVSS 3.1
7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness
CWE-120
Updated
2026-11-02
OSVAZL-25654 7.5

CVE-2023-26767 affecting package liblouis for versions less than 3.26.0-1

Buffer Overflow vulnerability found in Liblouis v.3.24.0 allows a remote attacker to cause a denial of service via the lou_logFile function at logginc.c endpoint.

Record
AZL-25654
CVSS 3.1
7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Updated
2026-11-02
OSVDEBIAN-CVE-2023-26767 7.5

Buffer Overflow vulnerability found in Liblouis v.3.24.0 allows a remote attacker to cause a denial of service via the lou_logFile function at logginc.c endpoint.

Record
DEBIAN-CVE-2023-26767
CVSS 3.1
7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Updated
2026-11-02
Show 12 moreShow less
OSVRHSA-2023:6385 7.5

Red Hat Security Advisory: liblouis security update

Record
RHSA-2023:6385
CVSS 3.1
7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Updated
2026-11-02
OSVRLSA-2023:6385 7.5

Moderate: liblouis security update

Liblouis is an open source braille translator and back-translator named in honor of Louis Braille. It features support for computer and literary braille, supports contracted and uncontracted translation for many languages and has support for hyphenation. New languages can easily be added through tables that support a rule or dictionary based approach. Liblouis also supports math braille (Nemeth and Marburg).

Security Fix(es):

  • liblouis: buffer overflow in lou_logFile function at logginc.c (CVE-2023-26767)

  • liblouis: buffer overflow in lou_setDataPath (CVE-2023-26768)

  • liblouis: buffer overflow in Lou_Trace (CVE-2023-26769)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Additional Changes:

For detailed information on changes in this release, see the Rocky Linux 9.3 Release Notes linked from the References section.

Record
RLSA-2023:6385
CVSS 3.1
7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Updated
2026-11-02
OSVUBUNTU-CVE-2023-26767 7.5

Buffer Overflow vulnerability found in Liblouis v.3.24.0 allows a remote attacker to cause a denial of service via the lou_logFile function at logginc.c endpoint.

Record
UBUNTU-CVE-2023-26767
CVSS 3.1
7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Updated
2026-11-02
OSVALSA-2023:6385 No score

Moderate: liblouis security update

Liblouis is an open source braille translator and back-translator named in honor of Louis Braille. It features support for computer and literary braille, supports contracted and uncontracted translation for many languages and has support for hyphenation. New languages can easily be added through tables that support a rule or dictionary based approach. Liblouis also supports math braille (Nemeth and Marburg).

Security Fix(es):

  • liblouis: buffer overflow in lou_logFile function at logginc.c (CVE-2023-26767)
  • liblouis: buffer overflow in lou_setDataPath (CVE-2023-26768)
  • liblouis: buffer overflow in Lou_Trace (CVE-2023-26769)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Additional Changes:

For detailed information on changes in this release, see the AlmaLinux Release Notes linked from the References section.

Record
ALSA-2023:6385
Updated
2026-11-02
OSVCLSA-2025-1746183800 No score

liblouis: Fix of CVE-2023-26767

  • CVE-2023-26767: fix buffer overflow in lou_setDataPath function
Record
CLSA-2025-1746183800
Updated
2026-11-02
OSV No score

Buffer Overflow vulnerability found in Liblouis v.3.24.0 allows a remote attacker to cause a denial of service via the lou_logFile function at logginc.c endpoint.

Record
CVE-2023-26767
Updated
2026-11-02
OSVopenSUSE-SU-2024:12815-1 No score

liblouis-data-3.25.0-1.1 on GA media

These are all security issues fixed in the liblouis-data-3.25.0-1.1 package on the GA media of openSUSE Tumbleweed.

Record
openSUSE-SU-2024:12815-1
Updated
2026-11-02
OSVSUSE-SU-2023:1771-1 No score

Security update for liblouis

This update for liblouis fixes the following issues:

  • CVE-2023-26767: Fixed buffer overflow vulnerability in lou_logFile function (bsc#1209429).
  • CVE-2023-26769: Fixed buffer Overflow vulnerability in resolveSubtable function (bsc#1209432).
Record
SUSE-SU-2023:1771-1
Updated
2026-11-02
OSVSUSE-SU-2023:1772-1 No score

Security update for liblouis

This update for liblouis fixes the following issues:

  • CVE-2023-26767: Fixed buffer overflow vulnerability in lou_logFile function (bsc#1209429).
  • CVE-2023-26769: Fixed buffer Overflow vulnerability in resolveSubtable function (bsc#1209432).
Record
SUSE-SU-2023:1772-1
Updated
2026-11-02
OSVSUSE-SU-2023:1773-1 No score

Security update for liblouis

This update for liblouis fixes the following issues:

  • CVE-2023-26767: Fixed buffer overflow vulnerability in lou_logFile function (bsc#1209429).
  • CVE-2023-26769: Fixed buffer Overflow vulnerability in resolveSubtable function (bsc#1209432).
Record
SUSE-SU-2023:1773-1
Updated
2026-11-02
OSVSUSE-SU-2023:1824-1 No score

Security update for liblouis

This update for liblouis fixes the following issues:

  • CVE-2023-26767: Fixed buffer overflow vulnerability in lou_logFile function (bsc#1209429).
  • CVE-2023-26768: Fixed buffer overflow in lou_logFile() (bsc#1209431).
  • CVE-2023-26769: Fixed buffer Overflow vulnerability in resolveSubtable function (bsc#1209432).
Record
SUSE-SU-2023:1824-1
Updated
2026-11-02
OSVUSN-5996-1 No score

liblouis vulnerabilities

It was discovered that Liblouis incorrectly handled certain files. An attacker could possibly use this issue to cause a denial of service. (CVE-2023-26767, CVE-2023-26768, CVE-2023-26769)

Record
USN-5996-1
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
liblouis
AlmaLinux:9
From an advisory covering 3 CVEs
 before 3.16.1-5.el9
3.16.1-5.el9
python3-louis
AlmaLinux:9
From an advisory covering 3 CVEs
 before 3.16.1-5.el9
3.16.1-5.el9
liblouis
Azure Linux:2
 before 3.26.0-1
3.26.0-1
liblouis
TuxCare:AlmaLinux:9.2
 before 3.16.1-4.el9_2.tuxcare.els3
3.16.1-4.el9_2.tuxcare.els3
liblouis-devel
TuxCare:AlmaLinux:9.2
 before 3.16.1-4.el9_2.tuxcare.els3
3.16.1-4.el9_2.tuxcare.els3
liblouis-doc
TuxCare:AlmaLinux:9.2
 before 3.16.1-4.el9_2.tuxcare.els3
3.16.1-4.el9_2.tuxcare.els3
liblouis-utils
TuxCare:AlmaLinux:9.2
 before 3.16.1-4.el9_2.tuxcare.els3
3.16.1-4.el9_2.tuxcare.els3
python3-louis
TuxCare:AlmaLinux:9.2
 before 3.16.1-4.el9_2.tuxcare.els3
3.16.1-4.el9_2.tuxcare.els3
liblouis
Debian:12
 All versions, plus listed versions
3.24.0-13.24.0-23.26.0-13.26.0-1~bpo12+13.27.0-1
Show 27 moreShow less
3.27.0-1~bpo12+13.27.0-1~bpo12+23.28.0-13.28.0-1~bpo12+23.29.0-13.29.0-1~bpo12+23.30.0-13.30.0-23.30.0-2~bpo12+13.31.0-13.31.0-23.31.0-2~bpo12+13.32.0-13.32.0-1~bpo12+13.33.0-13.33.0-1~bpo12+13.34.0-13.35.0-13.35.0-23.35.0-2~bpo13+13.36.0-13.36.0-1~bpo13+13.37.0-13.37.0-1~bpo13+13.38.0-13.38.0-1~bpo13+13.39.0-1
 None known
liblouis
Debian:13
 before 3.24.0-2
3.24.0-2
Show 59 moreShow less
Affected packages
PackageAffectedFixed
liblouis
Debian:14
 before 3.24.0-2
3.24.0-2
liblouis
Red Hat:enterprise_linux:9::appstream
From an advisory covering 3 CVEs
 before 0:3.16.1-5.el9
0:3.16.1-5.el9
liblouis-debuginfo
Red Hat:enterprise_linux:9::appstream
From an advisory covering 3 CVEs
 before 0:3.16.1-5.el9
0:3.16.1-5.el9
liblouis-debugsource
Red Hat:enterprise_linux:9::appstream
From an advisory covering 3 CVEs
 before 0:3.16.1-5.el9
0:3.16.1-5.el9
liblouis-utils-debuginfo
Red Hat:enterprise_linux:9::appstream
From an advisory covering 3 CVEs
 before 0:3.16.1-5.el9
0:3.16.1-5.el9
python3-louis
Red Hat:enterprise_linux:9::appstream
From an advisory covering 3 CVEs
 before 0:3.16.1-5.el9
0:3.16.1-5.el9
liblouis
Rocky Linux:9
From an advisory covering 3 CVEs
 before 0:3.16.1-5.el9
0:3.16.1-5.el9
liblouis
SUSE:Linux Enterprise Module for Desktop Applications 15 SP4
From an advisory covering 2 CVEs
 before 3.20.0-150400.3.8.1
3.20.0-150400.3.8.1
liblouis
openSUSE:Leap 15.4
From an advisory covering 2 CVEs
 before 3.20.0-150400.3.8.1
3.20.0-150400.3.8.1
liblouis
SUSE:Linux Enterprise High Performance Computing 15 SP1-LTSS
From an advisory covering 2 CVEs
 before 3.3.0-150000.4.13.1
3.3.0-150000.4.13.1
liblouis
SUSE:Linux Enterprise Server 15 SP1-LTSS
From an advisory covering 2 CVEs
 before 3.3.0-150000.4.13.1
3.3.0-150000.4.13.1
liblouis
SUSE:Linux Enterprise Server for SAP Applications 15 SP1
From an advisory covering 2 CVEs
 before 3.3.0-150000.4.13.1
3.3.0-150000.4.13.1
liblouis
openSUSE:Leap 15.4
From an advisory covering 2 CVEs
 before 3.3.0-150000.4.13.1
3.3.0-150000.4.13.1
liblouis
SUSE:Linux Enterprise High Performance Computing 15 SP2-LTSS
From an advisory covering 2 CVEs
 before 3.11.0-150200.3.8.1
3.11.0-150200.3.8.1
liblouis
SUSE:Linux Enterprise High Performance Computing 15 SP3-ESPOS
From an advisory covering 2 CVEs
 before 3.11.0-150200.3.8.1
3.11.0-150200.3.8.1
liblouis
SUSE:Linux Enterprise High Performance Computing 15 SP3-LTSS
From an advisory covering 2 CVEs
 before 3.11.0-150200.3.8.1
3.11.0-150200.3.8.1
liblouis
SUSE:Linux Enterprise Real Time 15 SP3
From an advisory covering 2 CVEs
 before 3.11.0-150200.3.8.1
3.11.0-150200.3.8.1
liblouis
SUSE:Linux Enterprise Server 15 SP2-LTSS
From an advisory covering 2 CVEs
 before 3.11.0-150200.3.8.1
3.11.0-150200.3.8.1
liblouis
SUSE:Linux Enterprise Server 15 SP3-LTSS
From an advisory covering 2 CVEs
 before 3.11.0-150200.3.8.1
3.11.0-150200.3.8.1
liblouis
SUSE:Linux Enterprise Server for SAP Applications 15 SP2
From an advisory covering 2 CVEs
 before 3.11.0-150200.3.8.1
3.11.0-150200.3.8.1
liblouis
SUSE:Linux Enterprise Server for SAP Applications 15 SP3
From an advisory covering 2 CVEs
 before 3.11.0-150200.3.8.1
3.11.0-150200.3.8.1
liblouis
SUSE:Enterprise Storage 7
From an advisory covering 2 CVEs
 before 3.11.0-150200.3.8.1
3.11.0-150200.3.8.1
liblouis
SUSE:Enterprise Storage 7.1
From an advisory covering 2 CVEs
 before 3.11.0-150200.3.8.1
3.11.0-150200.3.8.1
liblouis
openSUSE:Leap 15.4
From an advisory covering 2 CVEs
 before 3.11.0-150200.3.8.1
3.11.0-150200.3.8.1
liblouis
SUSE:OpenStack Cloud 9
From an advisory covering 3 CVEs
 before 2.6.4-6.14.2
2.6.4-6.14.2
python-louis
SUSE:OpenStack Cloud 9
From an advisory covering 3 CVEs
 before 2.6.4-6.14.3
2.6.4-6.14.3
python3-louis
SUSE:OpenStack Cloud 9
From an advisory covering 3 CVEs
 before 2.6.4-6.16.1
2.6.4-6.16.1
liblouis
SUSE:OpenStack Cloud Crowbar 9
From an advisory covering 3 CVEs
 before 2.6.4-6.14.2
2.6.4-6.14.2
python-louis
SUSE:OpenStack Cloud Crowbar 9
From an advisory covering 3 CVEs
 before 2.6.4-6.14.3
2.6.4-6.14.3
python3-louis
SUSE:OpenStack Cloud Crowbar 9
From an advisory covering 3 CVEs
 before 2.6.4-6.16.1
2.6.4-6.16.1
python3-louis
SUSE:Linux Enterprise Module for Web and Scripting 12
From an advisory covering 3 CVEs
 before 2.6.4-6.16.1
2.6.4-6.16.1
liblouis
SUSE:Linux Enterprise Server for SAP Applications 12 SP4
From an advisory covering 3 CVEs
 before 2.6.4-6.14.2
2.6.4-6.14.2
python-louis
SUSE:Linux Enterprise Server for SAP Applications 12 SP4
From an advisory covering 3 CVEs
 before 2.6.4-6.14.3
2.6.4-6.14.3
python3-louis
SUSE:Linux Enterprise Server for SAP Applications 12 SP4
From an advisory covering 3 CVEs
 before 2.6.4-6.16.1
2.6.4-6.16.1
liblouis
SUSE:Linux Enterprise Software Development Kit 12 SP5
From an advisory covering 3 CVEs
 before 2.6.4-6.14.2
2.6.4-6.14.2
liblouis
SUSE:Linux Enterprise Server 12 SP2-BCL
From an advisory covering 3 CVEs
 before 2.6.4-6.14.2
2.6.4-6.14.2
python-louis
SUSE:Linux Enterprise Server 12 SP2-BCL
From an advisory covering 3 CVEs
 before 2.6.4-6.14.3
2.6.4-6.14.3
python3-louis
SUSE:Linux Enterprise Server 12 SP2-BCL
From an advisory covering 3 CVEs
 before 2.6.4-6.16.1
2.6.4-6.16.1
liblouis
SUSE:Linux Enterprise Server 12 SP4-ESPOS
From an advisory covering 3 CVEs
 before 2.6.4-6.14.2
2.6.4-6.14.2
python-louis
SUSE:Linux Enterprise Server 12 SP4-ESPOS
From an advisory covering 3 CVEs
 before 2.6.4-6.14.3
2.6.4-6.14.3
python3-louis
SUSE:Linux Enterprise Server 12 SP4-ESPOS
From an advisory covering 3 CVEs
 before 2.6.4-6.16.1
2.6.4-6.16.1
liblouis
SUSE:Linux Enterprise Server 12 SP4-LTSS
From an advisory covering 3 CVEs
 before 2.6.4-6.14.2
2.6.4-6.14.2
python-louis
SUSE:Linux Enterprise Server 12 SP4-LTSS
From an advisory covering 3 CVEs
 before 2.6.4-6.14.3
2.6.4-6.14.3
python3-louis
SUSE:Linux Enterprise Server 12 SP4-LTSS
From an advisory covering 3 CVEs
 before 2.6.4-6.16.1
2.6.4-6.16.1
liblouis
SUSE:Linux Enterprise Server 12 SP5
From an advisory covering 3 CVEs
 before 2.6.4-6.14.2
2.6.4-6.14.2
python-louis
SUSE:Linux Enterprise Server 12 SP5
From an advisory covering 3 CVEs
 before 2.6.4-6.14.3
2.6.4-6.14.3
python3-louis
SUSE:Linux Enterprise Server 12 SP5
From an advisory covering 3 CVEs
 before 2.6.4-6.16.1
2.6.4-6.16.1
liblouis
SUSE:Linux Enterprise Server for SAP Applications 12 SP5
From an advisory covering 3 CVEs
 before 2.6.4-6.14.2
2.6.4-6.14.2
python-louis
SUSE:Linux Enterprise Server for SAP Applications 12 SP5
From an advisory covering 3 CVEs
 before 2.6.4-6.14.3
2.6.4-6.14.3
python3-louis
SUSE:Linux Enterprise Server for SAP Applications 12 SP5
From an advisory covering 3 CVEs
 before 2.6.4-6.16.1
2.6.4-6.16.1
liblouis
Ubuntu:Pro:16.04:LTS
 before 2.6.4-2ubuntu0.4+esm1, plus listed versions
2.6.2-22.6.4-22.6.4-2ubuntu0.12.6.4-2ubuntu0.22.6.4-2ubuntu0.32.6.4-2ubuntu0.4
2.6.4-2ubuntu0.4+esm1
liblouis
Ubuntu:18.04:LTS
 before 3.5.0-1ubuntu0.5, plus listed versions
3.0.0-3ubuntu13.3.0-13.4.1-13.5.0-13.5.0-1ubuntu0.13.5.0-1ubuntu0.23.5.0-1ubuntu0.33.5.0-1ubuntu0.4
3.5.0-1ubuntu0.5
liblouis
Ubuntu:20.04:LTS
 before 3.12.0-3ubuntu0.2, plus listed versions
3.10.0-13.11.0-23.11.0-33.12.0-23.12.0-33.12.0-3ubuntu0.1
3.12.0-3ubuntu0.2
liblouis
Ubuntu:22.04:LTS
 before 3.20.0-2ubuntu0.2, plus listed versions
3.18.0-13.18.0-1build13.19.0-23.20.0-23.20.0-2ubuntu0.1
3.20.0-2ubuntu0.2
liblouis
Ubuntu:Pro:16.04:LTS
From an advisory covering 3 CVEs
 before 2.6.4-2ubuntu0.4+esm1, plus listed versions
2.6.2-22.6.4-22.6.4-2ubuntu0.12.6.4-2ubuntu0.22.6.4-2ubuntu0.32.6.4-2ubuntu0.4
2.6.4-2ubuntu0.4+esm1
liblouis
Ubuntu:18.04:LTS
From an advisory covering 3 CVEs
 before 3.5.0-1ubuntu0.5, plus listed versions
3.0.0-3ubuntu13.3.0-13.4.1-13.5.0-13.5.0-1ubuntu0.13.5.0-1ubuntu0.23.5.0-1ubuntu0.33.5.0-1ubuntu0.4
3.5.0-1ubuntu0.5
liblouis
Ubuntu:20.04:LTS
From an advisory covering 3 CVEs
 before 3.12.0-3ubuntu0.2, plus listed versions
3.10.0-13.11.0-23.11.0-33.12.0-23.12.0-33.12.0-3ubuntu0.1
3.12.0-3ubuntu0.2
liblouis
Ubuntu:22.04:LTS
From an advisory covering 3 CVEs
 before 3.20.0-2ubuntu0.2, plus listed versions
3.18.0-13.18.0-1build13.19.0-23.20.0-23.20.0-2ubuntu0.1
3.20.0-2ubuntu0.2
liblouis
openSUSE:Tumbleweed
 before 3.25.0-1.1
3.25.0-1.1

History

History
RecordedChangedSources
affected, facts
first indexedCVE List, EUVD, GitHub Advisories, NVD, OSV

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

In short

CVE-2023-26767 is a high vulnerability (CVSS 7.5) in Liblouis, published March 16, 2023. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.36%, the 71st percentile. Fixed in liblouis 3.26.0-1.

References

Show 37 moreShow less
Pages All vulnerabilities Browse Docs Sources Guide Get API key
MoveEnter Open