Medium4.0Red Hat & Ubuntu Linux
Denial of Service and information disclosure via integer underflow in MakerNote decoding
CVE-2026-40386 Published Apr 12, 2026
CVE-2026-40386
Affected products & platforms
Red Hat & Ubuntu LinuxUnclassified
Summary
Denial of Service and information disclosure via integer underflow in MakerNote decoding. Red Hat rates this moderate (CVSS 4). Weakness: CWE-191. Affected package(s): libexif. Resolved in Red Hat advisory RHSA-2026:26276 — update the affected packages (`sudo dnf update`).
Affected versions
- libexif-0:0.6.22-6.el9_8.1
- libexif-0:0.6.22-5.el8_6.1
- libexif-0:0.6.22-5.el8_8.1
- libexif-0:0.6.22-3.el7_9
- libexif-0:0.6.22-5.el8_4.1
- libexif-0:0.6.22-6.el8_10
- libexif-0:0.6.22-6.el9_2.1
- libexif-0:0.6.22-6.el9_4.1
- libexif-0:0.6.24-9.el10_0.1
- libexif-0:0.6.22-6.el9_6.1
- libexif-0:0.6.24-9.el10_2.1
Official advisory · high-confidence parse· fetched 2 hours ago·verify at source
Fixed versions
- RHSA-2026:26276
Official advisory · high-confidence parse· fetched 2 hours ago·verify at source
Mitigation checklist
Recommended fix / mitigation
- Update the affected package(s) to the fixed version shipped in RHSA-2026:26276 (`sudo dnf update` / `yum update`).
Official advisory · high-confidence parse· fetched 2 hours ago·verify at source
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