CVE-2026-62292

HIGHPre-NVD 8.78.7—
EchelonGraph scoreMEDIUM confidence

This high-severity CVE scores 8.7 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.4%, top 63% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: epss, secondary
Trending — 3 sources updated this weekElevated
8.7EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 8.7Exploit: Elevated riskExposed: 0

A fix is available — apply it.

libheif is a HEIF and AVIF file format decoder and encoder. From 1.19.0 until 1.23.1, a crafted uncompressed HEIF image using generic zlib unci full-item compression can crash an application that decodes an advertised tile with heif_image_handle_decode_image_tile(). In libheif/codecs/uncompressed/unc_decoder.cc, unc_decoder::fetch_tile_data() computes a large tile offset and unc_decoder::get_compressed_image_data_uncompressed() validates it with range_start_offset plus range_size. For the last advertised tile (4095, 4095), the addition can wrap to zero, bypass the bounds check, and pass an invalid source pointer and a one-terabyte length to memcpy. The observed result is an out-of-bounds read and process crash; opening the file alone does not trigger the issue because tile decoding is required. This issue is fixed in version 1.23.1.

CVSS v3
8.7
EG Score
8.7(medium)
EG Risk
55(Track)
EG Risk 55/100SSVC: Track

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity87% × 45%
Exploitation40% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
37%
KEV
Not listed

Published

August 18, 2026

Last Modified

August 25, 2026

Advisory Details (3)

Auto-updated Aug 18, 2026
🔬 Proof of concept available. Patch available. Sources: github_commit, github_release, github.
github Patch Available🟡 PoC Available

Out-of-bounds read in uncompressed unci tile range slicing · Advisory · strukturag/libheif · GitHub

https://github.com/strukturag/libheif/security/advisories/GHSA-73p7-m7gg-w2jv
github_release Patch Available

v1.23.1

Patch available: strukturag/libheif v1.23.1

https://github.com/strukturag/libheif/releases/tag/v1.23.1
github_commit Patch Available

commit 089a809bf6be (strukturag/libheif)

Patch available: strukturag/libheif v1.23.1 (contains commit 089a809bf6be)

https://github.com/strukturag/libheif/commit/089a809bf6bed1abae102d5e97b6bb8c4f53b515

Patch Availability(1)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntulibheif1 (1.21.2-3ubuntu0.4) @ resolute2026-08-30ubuntu

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

All Vendor Advisories

(1)

Every vendor that published an advisory referencing this CVE — pulled from our cve_vendor_advisories aggregation. Click any row for the vendor's original advisory page.

Data Freshness Timeline

(refreshed 29× in last 7d / 46× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

  1. 2026-08-30 03:01 UTCEG score recompute
  2. 2026-08-30 03:01 UTCVendor advisory
  3. 2026-08-30 01:22 UTCEPSS rescore
  4. 2026-08-29 02:43 UTCEG score recompute
  5. 2026-08-29 02:43 UTCVendor advisory
  6. 2026-08-28 21:42 UTCEPSS rescore
  7. 2026-08-28 03:13 UTCVendor advisory
  8. 2026-08-27 15:00 UTCEG score recompute
  9. 2026-08-27 15:00 UTCVendor advisory
  10. 2026-08-27 14:25 UTCEPSS rescore
  11. 2026-08-27 02:52 UTCEG score recompute
  12. 2026-08-27 02:52 UTCVendor advisory
  13. 2026-08-26 14:46 UTCEPSS rescore
  14. 2026-08-26 14:45 UTCVendor advisory
  15. 2026-08-26 02:35 UTCVendor advisory
  16. 2026-08-25 14:27 UTCEG score recompute
  17. 2026-08-25 14:27 UTCVendor advisory
  18. 2026-08-25 13:49 UTCEPSS rescore
  19. 2026-08-25 02:20 UTCEG score recompute
  20. 2026-08-25 02:20 UTCVendor advisory
  21. 2026-08-25 01:51 UTCEG score recompute
  22. 2026-08-25 01:51 UTCVendor advisory
  23. 2026-08-25 00:03 UTCEG score recompute
  24. 2026-08-25 00:03 UTCVendor advisory
  25. 2026-08-24 11:55 UTCEG score recompute
Show 21 more
  1. 2026-08-24 11:55 UTCVendor advisory
  2. 2026-08-23 23:46 UTCVendor advisory
  3. 2026-08-23 11:39 UTCEG score recompute
  4. 2026-08-23 11:39 UTCVendor advisory
  5. 2026-08-23 00:19 UTCEPSS rescore
  6. 2026-08-22 23:32 UTCVendor advisory
  7. 2026-08-22 11:24 UTCEG score recompute
  8. 2026-08-22 11:24 UTCVendor advisory
  9. 2026-08-21 23:49 UTCEPSS rescore
  10. 2026-08-21 23:16 UTCVendor advisory
  11. 2026-08-21 11:05 UTCEG score recompute
  12. 2026-08-21 11:05 UTCVendor advisory
  13. 2026-08-20 22:55 UTCEPSS rescore
  14. 2026-08-20 22:53 UTCVendor advisory
  15. 2026-08-20 10:46 UTCVendor advisory
  16. 2026-08-19 22:39 UTCEG score recompute
  17. 2026-08-19 22:39 UTCVendor advisory
  18. 2026-08-19 17:04 UTCEPSS rescore
  19. 2026-08-18 22:23 UTCEG score recompute
  20. 2026-08-18 21:23 UTCEG score recompute
  21. 2026-08-18 21:23 UTCMITRE cvelistV5first tracked

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Frequently asked(5)

What is CVE-2026-62292?
CVE-2026-62292 is a high vulnerability published on August 18, 2026. libheif is a HEIF and AVIF file format decoder and encoder. From 1.19.0 until 1.23.1, a crafted uncompressed HEIF image using generic zlib unci full-item compression can crash an application that decodes an advertised tile with heifimagehandledecodeimagetile(). In…
When was CVE-2026-62292 disclosed?
CVE-2026-62292 was first published in the National Vulnerability Database on August 18, 2026, with the most recent update on August 25, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-62292 actively exploited?
CVE-2026-62292 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 62.6% of all scored CVEs.
What is the CVSS score of CVE-2026-62292?
CVE-2026-62292 has a CVSS v3 base score of 8.7 (NVD).
How do I remediate CVE-2026-62292?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-62292, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

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