CVE-2026-4775

HIGHPre-NVD 7.87.8—
EchelonGraph scoreMEDIUM confidence

Score 7.8 from GitHub Security Advisory (severity: HIGH) published 2026-03-24. a secondary CVSS source baseline 7.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
7.8
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 1%CVSS: 7.8Exploit: NoneExposed: 0

A fix is available — apply it.

A flaw was found in the libtiff library. A remote attacker could exploit a signed integer overflow vulnerability in the putcontig8bitYCbCr44tile function by providing a specially crafted TIFF file. This flaw can lead to an out-of-bounds heap write due to incorrect memory pointer calculations, potentially causing a denial of service (application crash) or arbitrary code execution.

CVSS v3
7.8
EG Score
7.8(medium)
EPSS
42.2%
KEV
Not listed

Published

March 24, 2026

Last Modified

June 30, 2026

Advisory Details (5)

Auto-updated Apr 30, 2026
Patch available. Sources: redhat.
generic Patch Available

[SECURITY] [DLA 4536-1] tiff security update

https://lists.debian.org/debian-lts-announce/2026/04/msg00016.html
redhat Patch Available

2450768 – (CVE-2026-4775) CVE-2026-4775 libtiff: libtiff: Arbitrary code execution or denial of service via signed integer overflow in TIFF file processing

Affected: Red Hat Enterprise Linux 10

https://bugzilla.redhat.com/show_bug.cgi?id=2450768
redhat Patch Available

cve-details

https://access.redhat.com/security/cve/CVE-2026-4775
redhat Patch Available

Affected: Red Hat Enterprise Linux 9.

https://access.redhat.com/errata/RHSA-2026:12271
redhat Patch Available

Affected: Red Hat Enterprise Linux 10.

https://access.redhat.com/errata/RHSA-2026:12265

Vendor Advisories for CVE-2026-4775(20)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Patch Availability(20)

Vendor / EcosystemFixed in / PatchReleasedSource
redhatcompat-libtiff3-0:3.9.4-12.el7_9.22026-06-10redhat
redhatrhaiis/model-opt-cuda-rhel9:17806819842026-06-10redhat
redhatcompat-libtiff3-0:3.9.4-13.el8_4.22026-05-26redhat
redhatcompat-libtiff3-0:3.9.4-15.el8_102026-05-26redhat
redhatcompat-libtiff3-0:3.9.4-13.el8_6.22026-05-26redhat
redhatcompat-libtiff3-0:3.9.4-13.el8_8.22026-05-26redhat
redhatlibtiff-0:4.0.9-18.el8_4.22026-05-20redhat
redhatlibtiff-0:4.4.0-13.el9_6.42026-05-20redhat
redhatlibtiff-0:4.4.0-12.el9_4.52026-05-20redhat
redhatlibtiff-0:4.2.0-3.el9_0.32026-05-20redhat
redhatlibtiff-0:4.4.0-8.el9_2.52026-05-20redhat
redhatlibtiff-0:4.0.9-21.el8_6.22026-05-20redhat
redhatlibtiff-0:4.0.9-29.el8_8.22026-05-20redhat
redhatlibtiff-0:4.6.0-6.el10_0.32026-05-20redhat
redhatlibtiff-0:4.4.0-18.el9_82026-05-19redhat
redhatlibtiff-0:4.6.0-8.el10_2.12026-05-19redhat
redhatlibtiff-0:4.0.9-37.el8_102026-05-11redhat
redhatmingw-libtiff-0:4.0.9-4.el8_102026-05-07redhat
redhatlibtiff-0:4.4.0-15.el9_7.32026-04-30redhat
redhatlibtiff-0:4.6.0-6.el10_1.32026-04-30redhat

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.

Additional Vendor Advisories

(6)

Vendors that published advisories for this CVE beyond the curated set above. Broader coverage but minimal per-row detail — click through for the original advisory.

Data Freshness Timeline

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

Related CVEs(same vendor + same CWE)

Frequently asked(5)

What is CVE-2026-4775?
CVE-2026-4775 is a high vulnerability published on March 24, 2026. A flaw was found in the libtiff library. A remote attacker could exploit a signed integer overflow vulnerability in the putcontig8bitYCbCr44tile function by providing a specially crafted TIFF file. This flaw can lead to an out-of-bounds heap write due to incorrect memory pointer calculations,…
When was CVE-2026-4775 disclosed?
CVE-2026-4775 was first published in the National Vulnerability Database on March 24, 2026, with the most recent update on June 30, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-4775 actively exploited?
CVE-2026-4775 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 42.2% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-4775?
CVE-2026-4775 has a CVSS v3 base score of 7.8 (NVD).
How do I remediate CVE-2026-4775?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-4775, 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.

Dependency Blast Radius

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