libheif is a HEIF and AVIF file format decoder and encoder. In versions 1.21.2 and prior, a crafted HEIF sequence file where the saiz box declares more samples than actually exist in the track's chunk table causes a heap-buffer-overflow (out-of-bounds read) in the SampleAuxInfoReader constructor. The SampleAuxInfoReader constructor iterates over saiz->get_num_samples() samples but doesn't validate that this count is consistent with the number of chunks in the chunks vector. When saiz declares more samples than the chunks cover, the loop increments current_chunk past chunks.size(), causing an out-of-bounds read on the chunks vector. The vulnerability is triggered during file parsing (heif_context_read_from_file) without any additional user interaction. Any application using libheif to open untrusted HEIF files is affected. This issue has been fixed in version 1.22.0.
総合評価: CVE-2026-41071 は公開エクスプロイトあり(50/100)。CVSS 深刻度は中。悪用される可能性が高い(EPSS 0.34%、25 パーセンタイル) 根拠: 公開エクスプロイトが 1 件参照されています(Exploit-DB)。 推奨対応: 公開エクスプロイトが確認されています。影響範囲の確認、緩和策の適用、パッチ適用を優先してください。
リスクは変動します。再評価に基づき、本ページの表示内容を更新しています。
| EDB-ID | ソース | 種別 | 公開 | リンク |
|---|---|---|---|---|
| — | nvd_ref | exploit_tag | Exploit-DB ↗ |
EPSS は日次で悪用されやすさの相対度合いを推定します。パーセンタイルは採点済み CVE の中での相対位置(高いほど相対的に深刻)を示します。
| # | 日付 | 旧 EPSS スコア | 新 EPSS スコア | Δ(新 − 旧) |
|---|---|---|---|---|
| 1 | 2026-06-15 | 0.04% | 0.34% | +0.30% |
| 2 | 2026-05-23 | — | 0.04% | — |
EPSS の全履歴 (全 2 件)
この CVE の CVSS 指標。
| ベーススコア | バージョン | 深刻度 | ベクトル | 悪用しやすさ | 影響 | スコアの出典 |
|---|---|---|---|---|---|---|
| 5.1 | 4.0 | MEDIUM |
|
— | — | [email protected] |
| 8.1 | 3.1 | HIGH |
|
2.8 | 5.2 | [email protected] |
| vendor | priority | summary | link |
|---|---|---|---|
debian
|
not yet assigned | CVE-2026-41071 not yet assigned priority: Debian including 1 source packages (libheif), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): open 4, resolved 1. | https://security-tracker.debian.org/tracker/CVE-2026-41071 |
suse
|
medium | CVE-2026-41071 severity moderate: SUSE including 11 source package names (gdk-pixbuf-loader-libheif, libheif, …), 48 product×package rows across 14 product lines (SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS, SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS, … (14 product lines)): Known Not Affected 48. | https://www.suse.com/security/cve/CVE-2026-41071/ |
ubuntu
|
medium | CVE-2026-41071 medium priority: Ubuntu including 1 source packages (libheif), 7 status rows across 7 suites (bionic, focal, jammy, noble, questing, resolute, upstream): needs-triage 7. | https://ubuntu.com/security/CVE-2026-41071 |
| URL | タグ |
|---|---|
| https://github.com/strukturag/libheif/releases/tag/v1.22.0 | Product Release Notes |
| https://github.com/strukturag/libheif/security/advisories/GHSA-xj92-xjff-h8w3 | Exploit Mitigation Vendor Advisory |