What is CVE-2023-26769?

CVE-2023-26769 is a high-severity vulnerability in Liblouis, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 7.5/10. Published 2023-03-16.

How severe is CVE-2023-26769?

High severity. CVSS v3 base score is 7.5 out of 10.

Is CVE-2023-26769 known to be exploited?

3 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Buffer overflow in Liblouis

CVE-2023-26769

Buffer Overflow vulnerability found in Liblouis Lou_Trace v.3.24.0 allows a remote attacker to cause a denial of service via the resolveSubtable function at compileTranslationTabel.c.

Vulnerability class: Buffer Overflow

Published 2023-03-16 · last modified 2026-07-09.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

EPSS exploit prediction

EPSS: 0.012 (65.8th percentile), scored 2026-10-01.

Low probability of exploitation in the next 30 days, but still tracked. 66th percentile — 65.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.012 · newest: 0.012 · change: 0.000

Affected products

Liblouis — versions 3.24.0

Weakness classification (CWE)

CWE-120 — Buffer Copy without Checking Size of Input (Classic Buffer Overflow)

Public proof-of-concept exploits

References

af854a3a-2127-422b-91ae-364da2661108 (Broken Link)
github.com/liblouis/liblouis (Product)
github.com/liblouis/liblouis/pull/1300 (Patch, Issue Tracking)

Frequently asked questions

What is CVE-2023-26769?: CVE-2023-26769 is a high-severity vulnerability in Liblouis, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 7.5/10. Published 2023-03-16.
How severe is CVE-2023-26769?: High severity. CVSS v3 base score is 7.5 out of 10.
Is CVE-2023-26769 known to be exploited?: 3 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.