Liblouis through 3.21.0 has a buffer overflow in compilePassOpcode in…
Priority LOW 37CWE-120Published · Updated
Key facts
- Attack vector
- Local
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Deferred Red Hat: fix deferred
Attack profile from CVSS 3.1 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-120 and the CVSS impact.
Summary
Liblouis through 3.21.0 has a buffer overflow in compilePassOpcode in compileTranslationTable.c (called, indirectly, by tools/lou_checktable.c).
Why it matters now
EPSS 0.01451 73rd percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Deferred Red Hat: fix deferred
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 7
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:liblouis:liblouis:*:*:*:*:*:*:*:* | up to 3.21.0 | Vulnerable | Liblouis |
| cpe:2.3:o:fedoraproject:fedora:36:*:*:*:*:*:*:* | 36 | Vulnerable | Fedoraproject |
| cpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:* | before 15.6 | Vulnerable | Apple |
| cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:* | before 15.6 | Vulnerable | Apple |
| cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:* | 12.0 to before 12.5 | Vulnerable | Apple |
| cpe:2.3:o:apple:tvos:*:*:*:*:*:*:*:* | before 15.6 | Vulnerable | Apple |
| cpe:2.3:o:apple:watchos:*:*:*:*:*:*:*:* | before 8.7 | Vulnerable | Apple |
- cpe:2.3:a:liblouis:liblouis:*:*:*:*:*:*:*:* Versions up to 3.21.0 Vulnerable ·Liblouis
- cpe:2.3:o:fedoraproject:fedora:36:*:*:*:*:*:*:* Versions 36 Vulnerable ·Fedoraproject
- cpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:* Versions before 15.6 Vulnerable ·Apple
- cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:* Versions before 15.6 Vulnerable ·Apple
- cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:* Versions 12.0 to before 12.5 Vulnerable ·Apple
- cpe:2.3:o:apple:tvos:*:*:*:*:*:*:*:* Versions before 15.6 Vulnerable ·Apple
- cpe:2.3:o:apple:watchos:*:*:*:*:*:*:*:* Versions before 8.7 Vulnerable ·Apple
Remediation
No fixed version listed by the sources yet.
Vendor assessments
Red Hat
Red Hat rating: Low. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux 7 | Affected | No fix planned: Out of support scope |
| Red Hat Enterprise Linux 8 | Affected | No fix yet: Fix deferred |
| Red Hat Enterprise Linux 9 | Affected | No fix yet: Fix deferred |
Timeline
- 2026-10-02 Threatist record created from CVE-2022-26981
- 2026-10-03 Alias added: GHSA-xrp8-mw8v-p6mq
References
Advisory 10
- FEDORA-2022-81110193e5
- https://support.apple.com/kb/HT213340
- https://support.apple.com/kb/HT213345
- https://support.apple.com/kb/HT213342
- https://support.apple.com/kb/HT213346
- 20220721 APPLE-SA-2022-07-20-5 tvOS 15.6
- 20220721 APPLE-SA-2022-07-20-2 macOS Monterey 12.5
- 20220721 APPLE-SA-2022-07-20-1 iOS 15.6 and iPadOS 15.6
- 20220721 APPLE-SA-2022-07-20-6 watchOS 8.7
- GLSA-202301-06
Sources
- CVE-2022-26981 · CVE Program
- CVE-2022-26981 · NVD
- FIRST EPSS
- GHSA-xrp8-mw8v-p6mq · GitHub Advisory Database · CC BY 4.0
- CVE-2022-26981 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences