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
Trending — 4 sources updated this week
7.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 1%CVSS: 7.8Exploit: None knownExposed: 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)
EG Risk
35(Track)
EG Risk 35/100SSVC: 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
Severity78% × 45%
Exploitation1% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
1%
EPSS %ILE
44%
KEV
Not listed

Published

March 24, 2026

Last Modified

July 15, 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(27)

Vendor / EcosystemFixed in / PatchReleasedSource
redhatlibtiff-main-4.7.1-2.3.hum12026-06-30redhat
redhatlibtiff-main-4.7.1-2.2.hum12026-06-26redhat
redhatrhaiis/vllm-spyre-rhel9:17823529192026-06-25redhat
redhatrhaiis/vllm-cuda-rhel9:17823528472026-06-25redhat
redhatrhaiis/vllm-rocm-rhel9:17823530932026-06-25redhat
redhatrhaiis/model-opt-cuda-rhel9:17823529502026-06-25redhat
redhatlibtiff-0:4.0.3-35.el7_9.22026-06-15redhat
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_8.22026-05-26redhat
redhatcompat-libtiff3-0:3.9.4-15.el8_102026-05-26redhat
redhatcompat-libtiff3-0:3.9.4-13.el8_4.22026-05-26redhat
redhatcompat-libtiff3-0:3.9.4-13.el8_6.22026-05-26redhat
redhatlibtiff-0:4.6.0-6.el10_0.32026-05-20redhat
redhatlibtiff-0:4.0.9-18.el8_4.22026-05-20redhat
redhatlibtiff-0:4.4.0-13.el9_6.42026-05-20redhat
redhatlibtiff-0:4.0.9-29.el8_8.22026-05-20redhat
redhatlibtiff-0:4.2.0-3.el9_0.32026-05-20redhat
redhatlibtiff-0:4.0.9-21.el8_6.22026-05-20redhat
redhatlibtiff-0:4.4.0-12.el9_4.52026-05-20redhat
redhatlibtiff-0:4.4.0-8.el9_2.52026-05-20redhat
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-0:4.6.0-6.el10_1.32026-04-30redhat
redhatlibtiff-0:4.4.0-15.el9_7.32026-04-30redhat

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.

Affected Packages

(4 across 4 ecosystems)
Debian:11(1)
PackageVulnerable rangeFixed inDependents
tiff4.2.0-1 ... 4.2.0-1+deb11u7 (8 versions)4.2.0-1+deb11u8—
Debian:12(1)
PackageVulnerable rangeFixed inDependents
tiff4.5.0-6, 4.5.0-6+deb12u1, 4.5.0-6+deb12u2, 4.5.0-6+deb12u34.5.0-6+deb12u4—
Debian:13(1)
PackageVulnerable rangeFixed inDependents
tiff4.7.0-3, 4.7.0-3+deb13u14.7.0-3+deb13u2—
Debian:14(1)
PackageVulnerable rangeFixed inDependents
tiff4.7.0-3, 4.7.0-4, 4.7.0-5, 4.7.1-14.7.1-2—

Weakness Classification(1)

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

Additional Vendor Advisories

(8)

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 12× in last 7d / 70× 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 173 total refreshes for this CVE.

  1. 2026-08-20 22:55 UTCEPSS rescore
  2. 2026-08-19 17:04 UTCEPSS rescore
  3. 2026-08-18 13:48 UTCEPSS rescore
  4. 2026-08-17 13:47 UTCEPSS rescore
  5. 2026-08-16 14:56 UTCEPSS rescore
  6. 2026-08-16 10:38 UTCEG score recompute
  7. 2026-08-16 10:38 UTCVendor advisory
  8. 2026-08-16 10:38 UTCGHSA enrichment
  9. 2026-08-16 02:14 UTCEPSS rescore
  10. 2026-08-15 01:30 UTCEPSS rescore
  11. 2026-08-14 19:41 UTCVendor advisory
  12. 2026-08-14 19:41 UTCGHSA enrichment
  13. 2026-08-14 06:51 UTCEG score recompute
  14. 2026-08-14 06:51 UTCVendor advisory
  15. 2026-08-14 06:51 UTCGHSA enrichment
  16. 2026-08-13 22:00 UTCEPSS rescore
  17. 2026-08-12 21:30 UTCEG score recompute
  18. 2026-08-12 21:30 UTCVendor advisory
  19. 2026-08-12 21:30 UTCGHSA enrichment
  20. 2026-08-12 13:51 UTCEPSS rescore
  21. 2026-08-11 21:08 UTCEG score recompute
  22. 2026-08-11 21:08 UTCVendor advisory
  23. 2026-08-11 21:08 UTCGHSA enrichment
  24. 2026-08-11 04:10 UTCEG score recompute
  25. 2026-08-11 04:10 UTCVendor advisory
Show 75 more
  1. 2026-08-11 04:10 UTCGHSA enrichment
  2. 2026-08-11 00:00 UTCEPSS rescore
  3. 2026-08-10 06:22 UTCVendor advisory
  4. 2026-08-10 06:22 UTCGHSA enrichment
  5. 2026-08-09 18:18 UTCEG score recompute
  6. 2026-08-09 18:18 UTCVendor advisory
  7. 2026-08-09 18:18 UTCGHSA enrichment
  8. 2026-08-09 13:46 UTCEPSS rescore
  9. 2026-08-09 06:27 UTCEG score recompute
  10. 2026-08-09 06:27 UTCVendor advisory
  11. 2026-08-09 06:27 UTCGHSA enrichment
  12. 2026-08-08 16:37 UTCEPSS rescore
  13. 2026-08-08 04:38 UTCVendor advisory
  14. 2026-08-08 04:38 UTCGHSA enrichment
  15. 2026-08-07 16:47 UTCEG score recompute
  16. 2026-08-07 16:47 UTCVendor advisory
  17. 2026-08-07 16:47 UTCGHSA enrichment
  18. 2026-08-06 19:04 UTCEG score recompute
  19. 2026-08-06 19:04 UTCVendor advisory
  20. 2026-08-06 19:04 UTCGHSA enrichment
  21. 2026-08-06 13:47 UTCEPSS rescore
  22. 2026-08-06 01:11 UTCEG score recompute
  23. 2026-08-06 01:11 UTCVendor advisory
  24. 2026-08-06 01:11 UTCGHSA enrichment
  25. 2026-08-05 19:17 UTCEPSS rescore
  26. 2026-08-04 15:10 UTCEPSS rescore
  27. 2026-08-04 10:39 UTCEPSS rescore
  28. 2026-08-03 23:55 UTCEG score recompute
  29. 2026-08-03 23:55 UTCVendor advisory
  30. 2026-08-03 23:55 UTCGHSA enrichment
  31. 2026-08-03 10:36 UTCEPSS rescore
  32. 2026-08-02 15:45 UTCEG score recompute
  33. 2026-08-02 15:45 UTCVendor advisory
  34. 2026-08-02 15:45 UTCGHSA enrichment
  35. 2026-08-02 02:27 UTCEPSS rescore
  36. 2026-08-01 04:16 UTCEPSS rescore
  37. 2026-07-30 16:28 UTCEPSS rescore
  38. 2026-07-30 01:30 UTCEPSS rescore
  39. 2026-07-28 15:37 UTCEPSS rescore
  40. 2026-07-26 14:54 UTCEPSS rescore
  41. 2026-07-25 14:18 UTCEPSS rescore
  42. 2026-07-24 14:18 UTCEPSS rescore
  43. 2026-07-23 14:18 UTCEPSS rescore
  44. 2026-07-23 03:17 UTCEG score recompute
  45. 2026-07-22 14:08 UTCEPSS rescore
  46. 2026-07-21 15:25 UTCEPSS rescore
  47. 2026-07-20 17:08 UTCEPSS rescore
  48. 2026-07-19 14:31 UTCEPSS rescore
  49. 2026-07-19 14:31 UTCEPSS rescore
  50. 2026-07-19 02:29 UTCEPSS rescore
  51. 2026-07-18 10:04 UTCEPSS rescore
  52. 2026-07-16 17:03 UTCEPSS rescore
  53. 2026-07-15 16:57 UTCEPSS rescore
  54. 2026-07-15 16:57 UTCEPSS rescore
  55. 2026-07-15 02:00 UTCEPSS rescore
  56. 2026-07-15 02:00 UTCEPSS rescore
  57. 2026-07-13 22:31 UTCEPSS rescore
  58. 2026-07-13 06:13 UTCEPSS rescore
  59. 2026-07-13 06:13 UTCEPSS rescore
  60. 2026-07-12 05:46 UTCEPSS rescore
  61. 2026-07-11 08:27 UTCEPSS rescore
  62. 2026-07-11 08:27 UTCEPSS rescore
  63. 2026-07-09 19:10 UTCEPSS rescore
  64. 2026-07-08 15:16 UTCEPSS rescore
  65. 2026-07-07 13:46 UTCEPSS rescore
  66. 2026-07-06 16:27 UTCEPSS rescore
  67. 2026-07-06 02:23 UTCEPSS rescore
  68. 2026-07-05 02:30 UTCEPSS rescore
  69. 2026-07-04 06:31 UTCEPSS rescore
  70. 2026-07-01 15:07 UTCEPSS rescore
  71. 2026-06-30 23:22 UTCEPSS rescore
  72. 2026-06-29 14:06 UTCEPSS rescore
  73. 2026-06-29 14:06 UTCEPSS rescore
  74. 2026-06-28 14:07 UTCEPSS rescore
  75. 2026-06-28 04:56 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 July 15, 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 1% probability of exploitation in the next 30 days, which ranks it in the top 56.1% of all scored CVEs.
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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