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CVE Record

CVE-2026-4775: Libtiff: libtiff: arbitrary code execution or denial of service via signed integer overflow in tiff file processing

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.

HighCVSS 7.8Not KEV-listedUpdated
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Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.

ATT&CK lookup starting points

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cwe · low confidence lookup

CWE-190: Exact CWE lookup

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Execution behavior lookup

The CVE wording references code or command execution, so execution technique review may help defensive triage. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.

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CVE-2026-4775 mapping review

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Vulnerability profileCVE Program record
Severity
High
CVSS
7.8 (3.1)
Known Exploited
No
Published

Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

2CVSS vectors
7Timeline events
3ADP providers
33Source links

SSVC decision data

CISA-ADPCISA Coordinator
Timestamp
Version
2.0.3
Exploitation: noneAutomatable: noTechnical Impact: total

CVSS vector scores

2 official scores

We collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.

ScoreVersionSeverityVectorExploitImpactSource
7.8CVSS 3.1HighCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H1.85.9redhat
7.8CVSS 3.1HighCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H1.85.9redhat-SADP

Vulnerability scoring details

Base CVSS 3.1 score

7.8High
CVSS 3.1 vector shape for CVE-2026-4775Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Attack Vector
NetworkAdjacentLocalPhysical
Attack Complexity
LowHigh
Privileges Required
NoneLowHigh
User Interaction
NoneRequired
Scope
ChangedUnchanged
Confidentiality Impact
HighLowNone
Integrity Impact
HighLowNone
Availability Impact
HighLowNone

Vulnerability timeline

Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.

  1. ADP timelineredhat-SADP

    Reported to Red Hat.

  2. Source timelineredhat

    Reported to Red Hat.

  3. CVE reservedCVE Program

    The CVE ID was reserved by the assigning CNA.

  4. ADP timelineredhat-SADP

    Made public.

  5. Source timelineredhat

    Made public.

  6. CVE publishedCVE Program

    The CVE record was published.

  7. CVE updatedCVE Program

    The CVE record metadata indicates this as the latest update time.

ADP provider summaries

CISA-ADPCISA ADP Vulnrichment
other:ssvc
CVECVE Program Container
redhat-SADPlibtiff: libtiff: Arbitrary code execution or denial of service via signed integer overflow in TIFF file processing
other:Red Hat severity ratingcvssV3_1
  • 2026-03-24T14:23:23.826Z: Reported to Red Hat.
  • 2026-03-24T14:33:35.730Z: Made public.

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
Red HatRed Hat Enterprise Linux 10libtiff, 0:4.6.0-6.el10_1.3affected
Red HatRed Hat Enterprise Linux 10libtiff, 0:4.6.0-8.el10_2.1affected
Red HatRed Hat Enterprise Linux 10.0 Extended Update Supportlibtiff, 0:4.6.0-6.el10_0.3affected
Red HatRed Hat Enterprise Linux 7 Extended Lifecycle Supportcompat-libtiff3, 0:3.9.4-12.el7_9.2affected
Red HatRed Hat Enterprise Linux 7 Extended Lifecycle Supportlibtiff, 0:4.0.3-35.el7_9.2affected
Red HatRed Hat Enterprise Linux 8libtiff, 0:4.0.9-37.el8_10affected
Red HatRed Hat Enterprise Linux 8compat-libtiff3, 0:3.9.4-15.el8_10affected
Red HatRed Hat Enterprise Linux 8mingw-libtiff, 0:4.0.9-4.el8_10affected
Red HatRed Hat Enterprise Linux 8.4 Advanced Mission Critical Update Supportlibtiff, 0:4.0.9-18.el8_4.2affected
Red HatRed Hat Enterprise Linux 8.4 Advanced Mission Critical Update Supportcompat-libtiff3, 0:3.9.4-13.el8_4.2affected
Red HatRed Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-Onlibtiff, 0:4.0.9-18.el8_4.2affected
Red HatRed Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-Oncompat-libtiff3, 0:3.9.4-13.el8_4.2affected
Red HatRed Hat Enterprise Linux 8.6 Advanced Mission Critical Update Supportlibtiff, 0:4.0.9-21.el8_6.2affected
Red HatRed Hat Enterprise Linux 8.6 Advanced Mission Critical Update Supportcompat-libtiff3, 0:3.9.4-13.el8_6.2affected
Red HatRed Hat Enterprise Linux 8.6 Telecommunications Update Servicelibtiff, 0:4.0.9-21.el8_6.2affected
Red HatRed Hat Enterprise Linux 8.6 Telecommunications Update Servicecompat-libtiff3, 0:3.9.4-13.el8_6.2affected
Red HatRed Hat Enterprise Linux 8.6 Update Services for SAP Solutionslibtiff, 0:4.0.9-21.el8_6.2affected
Red HatRed Hat Enterprise Linux 8.6 Update Services for SAP Solutionscompat-libtiff3, 0:3.9.4-13.el8_6.2affected
Red HatRed Hat Enterprise Linux 8.8 Telecommunications Update Servicelibtiff, 0:4.0.9-29.el8_8.2affected
Red HatRed Hat Enterprise Linux 8.8 Telecommunications Update Servicecompat-libtiff3, 0:3.9.4-13.el8_8.2affected
Red HatRed Hat Enterprise Linux 8.8 Update Services for SAP Solutionslibtiff, 0:4.0.9-29.el8_8.2affected
Red HatRed Hat Enterprise Linux 8.8 Update Services for SAP Solutionscompat-libtiff3, 0:3.9.4-13.el8_8.2affected
Red HatRed Hat Enterprise Linux 9libtiff, 0:4.4.0-15.el9_7.3affected
Red HatRed Hat Enterprise Linux 9libtiff, 0:4.4.0-18.el9_8affected
Red HatRed Hat Enterprise Linux 9.0 Update Services for SAP Solutionslibtiff, 0:4.2.0-3.el9_0.3affected
Red HatRed Hat Enterprise Linux 9.2 Update Services for SAP Solutionslibtiff, 0:4.4.0-8.el9_2.5affected
Red HatRed Hat Enterprise Linux 9.4 Extended Update Supportlibtiff, 0:4.4.0-12.el9_4.5affected
Red HatRed Hat Enterprise Linux 9.6 Extended Update Supportlibtiff, 0:4.4.0-13.el9_6.4affected
Red HatRed Hat AI Inference Server 3.2rhaiis/model-opt-cuda-rhel9, 1780681984affected
Red HatRed Hat AI Inference Server 3.3rhaiis/model-opt-cuda-rhel9, 1782352950affected
Weakness

CWE details

CWE-190

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.

CWE-190 · source CWE mapping

Integer Overflow or Wraparound

Integer Overflow or Wraparound represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.

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