CVE Explorer

CVE-2026-47178

libheif is a HEIF and AVIF file format decoder and encoder. In versions 1.19.0 through 1.21.2, a crafted HEIF file (uncompressed `unci` codec, tiled, component-interleaved, 4:2:0) triggers a heap out-of-bounds write in libheif's uncompressed tile decoder. The write overwrites the C++ vtable pointer of an adjacent `unc_decoder_component_interleave` object; the next virtual call dispatches to an attacker-chosen address. Version 1.22.0 patches the issue.

Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:300e7762e533fe423c16b2db46d2107e9eafed52af9efd068016a6003eebf41c

Known exploited

Not asserted

Disputed

Stale source

Conflicts

Affected products and versions

1 source assertion

{"product":"libheif","vendor":"strukturag","versions":[{"status":"affected","version":">= 1.19.0, < 1.22.0"}]}

cve_program_cvelist_v5affected
urn:baitaphish:normalized-source-record:v2:426e4feafa3fb84464418016903da8b0b00ce1d8ff9501512c6f8ccee04cf9b6 · sha256:b6b79113a08bb39a… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion

{"metric":{"attackComplexity":"LOW","attackVector":"LOCAL","availabilityImpact":"HIGH","baseScore":6.1,"baseSeverity":"MEDIUM","confidentialityImpact":"LOW","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"REQUIRED","vectorString":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H","version":"3.1"},"metric_type":"cvssV3_1"}

cve_program_cvelist_v5cvss
urn:baitaphish:normalized-source-record:v2:426e4feafa3fb84464418016903da8b0b00ce1d8ff9501512c6f8ccee04cf9b6 · sha256:b6b79113a08bb39a… · /containers/cna/metrics/0/cvssV3_1

CWE assertions

1 source assertion

{"cweId":"CWE-787","description":"CWE-787: Out-of-bounds Write","lang":"en","type":"CWE"}

cve_program_cvelist_v5cwe
urn:baitaphish:normalized-source-record:v2:426e4feafa3fb84464418016903da8b0b00ce1d8ff9501512c6f8ccee04cf9b6 · sha256:b6b79113a08bb39a… · /containers/cna/problemTypes/0/descriptions/0

Source references

1 source assertion

{"name":"https://github.com/strukturag/libheif/security/advisories/GHSA-5x55-x5pf-9c6g","tags":["x_refsource_CONFIRM"],"url":"https://github.com/strukturag/libheif/security/advisories/GHSA-5x55-x5pf-9c6g"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:426e4feafa3fb84464418016903da8b0b00ce1d8ff9501512c6f8ccee04cf9b6 · sha256:b6b79113a08bb39a… · /containers/cna/references/0

Attribution and limitations

CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

← Back to CVE Explorer