Buf Overflow in libexif <=0.6.25 MakerNotes Decoding
CVE-2026-32775 Published on March 16, 2026
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.
Vulnerability Analysis
CVE-2026-32775 can be exploited with local system access, and does not require authorization privileges or user interaction. This vulnerability is consided to have a high level of attack complexity. Public availability of a proof of concept (POC) exploit exists for CVE-2026-32775. The potential impact of an exploit of this vulnerability is considered to be very high.
Weakness Type
What is an Integer underflow Vulnerability?
The product subtracts one value from another, such that the result is less than the minimum allowable integer value, which produces a value that is not equal to the correct result. This can happen in signed and unsigned cases.
CVE-2026-32775 has been classified to as an Integer underflow vulnerability or weakness.
Affected Versions
libexif:- Before and including 0.6.25 is affected.
Exploit Probability
EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.