CVE-2026-32775

libexif: libexif: Buffer overwrite via integer underflow in MakerNotes decoding

Published Mar 16, 2026 CVSS 3.1 · 7.4 High EPSS < 1% KEV · Not listed
Description
libexif through 0.6.25 has a flaw in decoding MakerNotes. If the exif_mnote_data_get_value function gets passed in a 0 size, the passed in-buffer would be overwritten due to an integer underflow.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
Debian DLA Debian DLA DLA-4558-1 libexif security update
Ubuntu USN Ubuntu USN USN-8531-1 libexif vulnerabilities
History
Type Values Removed Values Added
First Time appeared Libexif Project
Libexif Project libexif
CPEs cpe:2.3:a:libexif_project:libexif:*:*:*:*:*:*:*:*
Vendors & Products Libexif Project
Libexif Project libexif
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
First Time appeared Libexif
Libexif libexif
Vendors & Products Libexif
Libexif libexif
Type Values Removed Values Added
Title libexif: libexif: Buffer overwrite via integer underflow in MakerNotes decoding
References
Metrics threat_severity

None

threat_severity

Moderate

Type Values Removed Values Added
Description libexif through 0.6.25 has a flaw in decoding MakerNotes. If the exif_mnote_data_get_value function gets passed in a 0 size, the passed in-buffer would be overwritten due to an integer underflow.
Weaknesses CWE-191
References
Metrics cvssV3_1

{'score': 7.4, 'vector': 'CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
mitre
Published
Updated
Apr 12, 2026, 6:23 PM
Reserved
Mar 16, 2026, 6:31 AM
Status
Analyzed
Published
Mar 16, 2026, 2:19 PM
Modified
Jun 17, 2026, 10:36 AM
Severity
Moderate
Public date
Mar 16, 2026, 6:31 AM