CVE-2026-48029

HIGHPre-NVD 7.17.1—
EchelonGraph scoreMEDIUM confidence

This high-severity CVE scores 7.1 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.3%, top 77% 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
7.1EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 7.1Exploit: Elevated riskExposed: 0

A fix is available — apply it.

libheif is a HEIF and AVIF file format decoder and encoder. Versions 1.19.0 through 1.21.2 have a heap OOB read in ImageItem_Grid::decode_grid_tile via irot-induced tile-coordinate underflow. Version 1.22.0 fixes the issue.

CVSS v3
7.1
EG Score
7.1(medium)
EG Risk
48(Track)
EG Risk 48/100SSVC: 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
Severity71% × 45%
Exploitation40% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
23%
KEV
Not listed

Published

July 22, 2026

Last Modified

August 6, 2026

Advisory Details (2)

Auto-updated Jul 22, 2026
Patch available. Sources: github_commit, github.
github Patch Available

libheif 1.21.2: heap OOB read in ImageItem_Grid::decode_grid_tile via irot-induced tile-coordinate underflow · Advisory · strukturag/libheif · GitHub

https://github.com/strukturag/libheif/security/advisories/GHSA-6x5f-qchq-cxqv
github_commit Patch Available

commit e523ec0bf379 (strukturag/libheif)

Patch available: strukturag/libheif v1.22.0 (contains commit e523ec0bf379)

https://github.com/strukturag/libheif/commit/e523ec0bf379110b7c33d4c159f8b1202d332157

Patch Availability(1)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntulibheif1 (1.21.2-3ubuntu0.3) @ resolute2026-09-18ubuntu

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.

Affected Packages

(4 across 4 ecosystems)
Debian:11(1)
PackageVulnerable rangeFixed inDependents
libheif1.11.0-1 ... 1.23.1-1 (39 versions)——
Debian:12(1)
PackageVulnerable rangeFixed inDependents
libheif1.15.1-1 ... 1.23.2-1 (34 versions)——
Debian:13(1)
PackageVulnerable rangeFixed inDependents
libheif1.19.8-11.19.8-1+deb13u1—
Debian:14(1)
PackageVulnerable rangeFixed inDependents
libheif1.19.8-1 ... 1.21.2-4 (8 versions)1.23.1-1—

Weakness Classification(2)

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 16× in last 7d / 76× 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.

Showing the most recent 100 of 186 total refreshes for this CVE.

  1. 2026-09-18 22:41 UTCEG score recompute
  2. 2026-09-18 22:41 UTCVendor advisory
  3. 2026-09-18 19:28 UTCEPSS rescore
  4. 2026-09-18 03:11 UTCEG score recompute
  5. 2026-09-18 03:11 UTCVendor advisory
  6. 2026-09-17 02:10 UTCEG score recompute
  7. 2026-09-17 02:10 UTCVendor advisory
  8. 2026-09-16 14:08 UTCEPSS rescore
  9. 2026-09-16 07:02 UTCEG score recompute
  10. 2026-09-16 07:02 UTCVendor advisory
  11. 2026-09-16 05:15 UTCEPSS rescore
  12. 2026-09-14 11:01 UTCVendor advisory
  13. 2026-09-13 22:26 UTCEG score recompute
  14. 2026-09-13 22:26 UTCVendor advisory
  15. 2026-09-13 16:47 UTCEPSS rescore
  16. 2026-09-13 07:51 UTCVendor advisory
  17. 2026-09-12 19:16 UTCEG score recompute
  18. 2026-09-12 19:16 UTCVendor advisory
  19. 2026-09-12 06:40 UTCVendor advisory
  20. 2026-09-11 17:52 UTCEG score recompute
  21. 2026-09-11 17:52 UTCVendor advisory
  22. 2026-09-11 14:53 UTCEPSS rescore
  23. 2026-09-10 21:33 UTCEG score recompute
  24. 2026-09-10 21:33 UTCVendor advisory
  25. 2026-09-10 09:35 UTCEPSS rescore
Show 75 more
  1. 2026-09-09 09:15 UTCEG score recompute
  2. 2026-09-09 09:15 UTCVendor advisory
  3. 2026-09-08 22:01 UTCEPSS rescore
  4. 2026-09-07 21:41 UTCEG score recompute
  5. 2026-09-07 21:41 UTCVendor advisory
  6. 2026-09-07 16:01 UTCEPSS rescore
  7. 2026-09-06 13:47 UTCEPSS rescore
  8. 2026-09-06 08:42 UTCVendor advisory
  9. 2026-09-05 19:49 UTCEG score recompute
  10. 2026-09-05 19:49 UTCVendor advisory
  11. 2026-09-05 07:15 UTCEG score recompute
  12. 2026-09-05 07:15 UTCVendor advisory
  13. 2026-09-04 13:54 UTCEG score recompute
  14. 2026-09-04 05:06 UTCEPSS rescore
  15. 2026-09-02 14:12 UTCEPSS rescore
  16. 2026-09-01 23:40 UTCEG score recompute
  17. 2026-09-01 23:40 UTCVendor advisory
  18. 2026-09-01 13:54 UTCEPSS rescore
  19. 2026-08-31 02:05 UTCEG score recompute
  20. 2026-08-30 19:17 UTCEPSS rescore
  21. 2026-08-30 13:29 UTCEG score recompute
  22. 2026-08-30 13:29 UTCVendor advisory
  23. 2026-08-30 01:22 UTCEPSS rescore
  24. 2026-08-30 00:53 UTCEG score recompute
  25. 2026-08-30 00:53 UTCVendor advisory
  26. 2026-08-28 21:41 UTCEPSS rescore
  27. 2026-08-27 22:54 UTCEG score recompute
  28. 2026-08-27 22:54 UTCVendor advisory
  29. 2026-08-27 14:25 UTCEPSS rescore
  30. 2026-08-27 10:19 UTCVendor advisory
  31. 2026-08-26 21:18 UTCEG score recompute
  32. 2026-08-26 14:46 UTCEPSS rescore
  33. 2026-08-25 19:27 UTCEG score recompute
  34. 2026-08-25 19:27 UTCVendor advisory
  35. 2026-08-25 13:49 UTCEPSS rescore
  36. 2026-08-25 06:50 UTCVendor advisory
  37. 2026-08-24 18:15 UTCEG score recompute
  38. 2026-08-24 18:15 UTCVendor advisory
  39. 2026-08-24 03:30 UTCVendor advisory
  40. 2026-08-23 13:14 UTCVendor advisory
  41. 2026-08-23 00:37 UTCEG score recompute
  42. 2026-08-23 00:37 UTCVendor advisory
  43. 2026-08-23 00:19 UTCEPSS rescore
  44. 2026-08-22 12:01 UTCEG score recompute
  45. 2026-08-22 12:01 UTCVendor advisory
  46. 2026-08-21 23:49 UTCEPSS rescore
  47. 2026-08-21 23:05 UTCVendor advisory
  48. 2026-08-21 10:29 UTCEG score recompute
  49. 2026-08-21 10:29 UTCVendor advisory
  50. 2026-08-20 22:55 UTCEPSS rescore
  51. 2026-08-20 21:54 UTCVendor advisory
  52. 2026-08-20 09:19 UTCVendor advisory
  53. 2026-08-19 20:44 UTCEG score recompute
  54. 2026-08-19 20:44 UTCVendor advisory
  55. 2026-08-19 17:04 UTCEPSS rescore
  56. 2026-08-19 07:53 UTCVendor advisory
  57. 2026-08-18 19:12 UTCEG score recompute
  58. 2026-08-18 19:12 UTCVendor advisory
  59. 2026-08-18 13:48 UTCEPSS rescore
  60. 2026-08-18 02:29 UTCVendor advisory
  61. 2026-08-17 13:54 UTCEG score recompute
  62. 2026-08-17 13:54 UTCVendor advisory
  63. 2026-08-17 13:47 UTCEPSS rescore
  64. 2026-08-17 01:19 UTCEG score recompute
  65. 2026-08-17 01:19 UTCVendor advisory
  66. 2026-08-16 14:56 UTCEPSS rescore
  67. 2026-08-16 12:44 UTCEG score recompute
  68. 2026-08-16 12:44 UTCVendor advisory
  69. 2026-08-16 02:14 UTCEPSS rescore
  70. 2026-08-16 00:09 UTCVendor advisory
  71. 2026-08-15 11:34 UTCEG score recompute
  72. 2026-08-15 11:34 UTCVendor advisory
  73. 2026-08-15 01:30 UTCEPSS rescore
  74. 2026-08-14 22:58 UTCVendor advisory
  75. 2026-08-14 10:23 UTCEG score recompute

Frequently asked(5)

What is CVE-2026-48029?
CVE-2026-48029 is a high vulnerability published on July 22, 2026. libheif is a HEIF and AVIF file format decoder and encoder. Versions 1.19.0 through 1.21.2 have a heap OOB read in ImageItemGrid::decodegrid_tile via irot-induced tile-coordinate underflow. Version 1.22.0 fixes the issue.
When was CVE-2026-48029 disclosed?
CVE-2026-48029 was first published in the National Vulnerability Database on July 22, 2026, with the most recent update on August 6, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-48029 actively exploited?
CVE-2026-48029 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 76.6% of all scored CVEs.
What is the CVSS score of CVE-2026-48029?
CVE-2026-48029 has a CVSS v3 base score of 7.1 (NVD).
How do I remediate CVE-2026-48029?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-48029, 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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