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Vulnerability record · CVE-2020-19499 · published 21 July 2021

CVE-2020-19499: Struktur libheif out-of-bounds read vulnerability

Struktur · Libheif

An issue was discovered in heif::Box_iref::get_references in libheif 1.4.0, allows attackers to cause a Denial of Service or possibly other unspecified impact due to an invalid memory read.

8.8 CVSS 3.1 High EPSS 1.4% · top 29.2% CWE-125 · Out-of-bounds read
8.8CVSS 3.1 base score, v2 6.8
1.4%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
4References, 2 tagged exploit
17 Jun 2026Last modified by NVD

Description

An issue was discovered in heif::Box_iref::get_references in libheif 1.4.0, allows attackers to cause a Denial of Service or possibly other unspecified impact due to an invalid memory read.

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://github.com/strukturag/libheif/commit/f7399b62d7fbc596f1b2871578c1d2053bedf1dd PatchThird Party Advisory
https://github.com/strukturag/libheif/issues/138 ExploitThird Party Advisory
https://github.com/strukturag/libheif/commit/f7399b62d7fbc596f1b2871578c1d2053bedf1dd PatchThird Party Advisory
https://github.com/strukturag/libheif/issues/138 ExploitThird Party Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

8.8CVE-2026-32740Struktur libheif out-of-bounds write vulnerabilitylibheif is a HEIF and AVIF file format decoder and encoder. Versions 1.21.2 and prior contain a heap-buffer-overflow (write) vulnerability in the gri…EPSS 0.56%8.8CVE-2023-49460Struktur libheif vulnerabilitylibheif v1.17.5 was discovered to contain a segmentation violation via the function UncompressedImageCodec::decode_uncompressed_image.EPSS 0.76%8.8CVE-2023-49462Struktur libheif vulnerabilitylibheif v1.17.5 was discovered to contain a segmentation violation via the component /libheif/exif.cc.EPSS 0.80%8.8CVE-2023-49463Struktur libheif vulnerabilitylibheif v1.17.5 was discovered to contain a segmentation violation via the function find_exif_tag at /libheif/exif.cc.EPSS 0.77%8.8CVE-2023-49464Struktur libheif vulnerabilitylibheif v1.17.5 was discovered to contain a segmentation violation via the function UncompressedImageCodec::get_luma_bits_per_pixel_from_configuratio…EPSS 0.76%8.8CVE-2020-19498Struktur libheif vulnerabilityFloating point exception in function Fraction in libheif 1.4.0, allows attackers to cause a Denial of Service or possibly other unspecified impacts.EPSS 1.4%8.8CVE-2019-11471Struktur libheif use after free vulnerabilitylibheif 1.4.0 has a use-after-free in heif::HeifContext::Image::set_alpha_channel in heif_context.h because heif_context.cc mishandles references to …EPSS 1.8%8.1CVE-2024-41311Struktur libheif out-of-bounds read vulnerabilityIn Libheif 1.17.6, insufficient checks in ImageOverlay::parse() decoding a heif file containing an overlay image with forged offsets can lead to an o…EPSS 0.77%

Source: NIST National Vulnerability Database (record CVE-2020-19499), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.