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TI-2023-27020 Aliases CVE-2023-49460GHSA-p36f-mqgp-4pj4

libheif v1.17.5 was discovered to contain a segmentation violation via the function…

Priority HIGH 73Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
Required
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
High · High · High
Fix status
No fix listed

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA.

Summary

libheif v1.17.5 was discovered to contain a segmentation violation via the function UncompressedImageCodec::decode_uncompressed_image.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00762 55th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:struktur:libheif:1.17.5:*:*:*:*:*:*:*1.17.5Vulnerablestrukturag
  • cpe:2.3:a:struktur:libheif:1.17.5:*:*:*:*:*:*:* Versions 1.17.5 Vulnerable ·strukturag

Remediation

No fixed version listed by the sources yet.

Vendor assessments

Red Hat

Red Hat's page for this CVE →

Not affected: 1 product
  • Red Hat

Timeline

  1. 2026-10-02 Threatist record created from CVE-2023-49460
  2. 2026-10-03 Alias added: GHSA-p36f-mqgp-4pj4

References

  • TI-2026-34830 libheif Vulnerable to Heap Information Disclosure via Grid Image Gap + Uninitialized Pixel Plane Allocation CVSS 3.1HIGH 7.5
  • TI-2024-16668 libheif <= 1.17.6 contains a memory leak in the function JpegEncoder::Encode. CVSS 3.1HIGH 7.5
  • TI-2024-27575 In Libheif 1.17.6, insufficient checks in ImageOverlay::parse() decoding a heif file… CVSS 3.1HIGH 8.1
  • TI-2026-35472 libheif: heap OOB read in ImageItem_Grid::decode_grid_tile via irot-induced tile-coordinate underflow CVSS 3.1HIGH 7.1
  • TI-2026-35212 libheif has a NULL pointer dereference in heif_image_handle_get_image_tiling for malformed unci image missing ispe CVSS 4.0MEDIUM 6.9
  • TI-2026-34834 libheif has an incomplete fix for CVE-2026-3949: integer overflow bypass in vvdec_push_data2 CVSS 4.0MEDIUM 6.8
See all 28 →

Sources