Exiv2 0.27.99.0 has a global buffer over-read in Exiv2::Internal::Nikon1MakerNote::print0x0088 in nikonmn_int.cpp which can result in an information leak.

Affected: Ubuntu:Pro:16.04:LTS: exiv2, Ubuntu:Pro:18.04:LTS: exiv2, Ubuntu:Pro:20.04:LTS: exiv2, Ubuntu:22.04:LTS: exiv2, Ubuntu:24.04:LTS: exiv2, Ubuntu:25.10: exiv2

It was discovered that Exiv2 did not correctly handle reading certain buffers. An attacker could possibly use this issue to leak sensitive information. This issue only affected Ubuntu 16.04 LTS and Ubuntu 18.04 LTS. (CVE-2020-18771)

Wen Cheng discovered that Exiv2 did not correctly handle certain memory allocation. If a user or system were tricked into opening a specially crafted file, an attacker could possibly use this issue to cause a denial of service. This issue only affected Ubuntu 16.04 LTS and Ubuntu 18.04 LTS. (CVE-2020-18899)

It was discovered that Exiv2 did not correctly handle writing certain metadata. If a user or system were tricked into opening a specially crafted file, an attacker could possibly use this issue to cause a denial of service. (CVE-2025-54080)

It was discovered that Exiv2 did not correctly handle parsing certain metadata. If a user or system were tricked into opening a specially crafted file, an attacker could possibly use this issue to cause a denial of service. This issue only affected Ubuntu 20.04 LTS, Ubuntu 22.04 LTS, Ubuntu 24.04 LTS and Ubuntu 25.10. (CVE-2025-55304)

It was discovered that Exiv2 did not correctly handle parsing certain images. If a user or system were tricked into opening a specially crafted file, an attacker could possibly use this issue to cause a denial of service. (CVE-2026-25884)

It was discovered that Exiv2 did not correctly handle previewing certain images. An attacker could possibly use this issue to cause a d…