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Full vulnerability report · 2023
CVE-2023-40745High confidence

Libtiff: integer overflow in tiffcp.c

Unknown · Unknown

6.5MediumCVSS 3.1
Recommended action
Scheduled

Medium technical severity with no CISA KEV confirmation; remediate through the normal risk-based patch cycle unless local exposure raises the priority.

Patch available
Optional official sources

National CERT insights
?CERT means Computer Emergency Response Team; CSIRT is the closely related term Computer Security Incident Response Team.

Select the national-authority views to include. The exact source language is shown on each matched advisory. Your choice is remembered on this device and encoded in the shareable URL.

Official European source

ENISA European Vulnerability Database

Official EUVD identifiers, advisory evidence and known-exploited context. Missing fields are not treated as evidence of low risk.

1 current
ENISA EUVD identifier

EUVD-2023-45298

No EUVD known-exploited evidence

ENISA has published the identifier mapping but no EUVD description has been stored yet.

EUVD state
Present in the current official mapping
Known exploitation
Not present in the current ENISA EUVD known-exploited dataset. This is not proof of no exploitation.
ENISA score
Not supplied in the stored EUVD record
Advisory evidence
No linked advisory details stored yet
Recommended actionScheduled

Medium technical severity with no CISA KEV confirmation; remediate through the normal risk-based patch cycle unless local exposure raises the priority.

Patch available
01

What, why and how

LibTIFF is vulnerable to an integer overflow. This flaw allows remote attackers to cause a denial of service (application crash) or possibly execute an arbitrary code via a crafted tiff image, which triggers a heap-based buffer overflow.

What

LibTIFF is vulnerable to an integer overflow. This flaw allows remote attackers to cause a denial of service (application crash) or possibly execute an arbitrary code via a crafted tiff image, which triggers a heap-based buffer overflow.

Why

The product performs a calculation that can produce an integer overflow or wraparound when the logic assumes that the resulting value will always be larger than the original value. This occurs when an integer value is incremented to a value that is too large to store in the associated representation. When this occurs, the value may become a very small or negative number.

How

An attacker operating through a network path may attempt exploitation without authentication after a user interaction. If successful, the issue may execute code or commands in the affected security context.

What

LibTIFF is vulnerable to an integer overflow. This flaw allows remote attackers to cause a denial of service (application crash) or possibly execute an arbitrary code via a crafted tiff image, which triggers a heap-based buffer overflow.

Why

The product performs a calculation that can produce an integer overflow or wraparound when the logic assumes that the resulting value will always be larger than the original value. This occurs when an integer value is incremented to a value that is too large to store in the associated representation. When this occurs, the value may become a very small or negative number.

How

An attacker operating through a network path may attempt exploitation without authentication after a user interaction. If successful, the issue may execute code or commands in the affected security context.

02

Exploit reality and attack path

CVSS severity, EPSS forecast probability, public exploit material and CISA-confirmed exploitation are separate signals.

Observed exploitation
?Confirmed exploitation and public exploit material are separate signals. Attacks can occur without public proof-of-concept or exploit code.
No confirmed evidence

No CISA KEV match was present at the last successful refresh. This means no confirmation from that source, not proof of no exploitation.

Public PoC / exploit material
?Confirmed exploitation and public exploit material are separate signals. Attacks can occur without public proof-of-concept or exploit code.
None recorded

No exploit-tagged reference or CISA SSVC proof-of-concept state is currently recorded. Research may still exist outside the structured feeds.

Likely attack path
a network path → Integer Overflow or Wraparound → execute code or commands in the affected security context
Attack surface
Network
Privileges required
None: unauthenticated exploitation is possible
User interaction
Required interaction required
Attack complexity
Low: no specialised conditions are recorded
Security boundary
Unchanged: impact remains within the vulnerable component's security authority
Weakness
?CWE means Common Weakness Enumeration: a standard category for the underlying weakness.
CWE-190

CWE-190: Integer Overflow or Wraparound. The product performs a calculation that can produce an integer overflow or wraparound when the logic assumes that the resulting value will always be larger than the original value. This occurs when an integer value is incremented to a value that is too large to store in the associated representation. When this occurs, the value may become a very small or negative number.

CVSS vector
?CVSS means Common Vulnerability Scoring System. The vector records the metric values used to calculate technical severity.
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Common Vulnerability Scoring System 3.1: the compact vector below is decoded into plain language.

AVNetworkAttack vector: The vulnerable component can be reached over a network.ACLowAttack complexity: No specialised conditions are required beyond attacker-controlled input.PRNonePrivileges required: The attacker does not need an account or existing privileges.UIRequiredUser interaction: Another user must perform an action for exploitation to succeed.SUnchangedScope: The security impact remains within the vulnerable component's authority.CNoneConfidentiality impact: No direct loss is represented by this metric.INoneIntegrity impact: No direct loss is represented by this metric.AHighAvailability impact: A successful attack can cause a major loss.
Post-exploitation / living off the land
After compromise, an attacker may use built-in shells, scripting engines, scheduled tasks and native network utilities for discovery, persistence or movement. This is a plausible LoTL path, not evidence that it has occurred for every attack.
NetworkUnauthenticatedRemote code executionDenial of serviceCWE-190
A

Official authority intelligence

Only matched European and national findings are included. Language selectors and unavailable sources are omitted.

BSI · German · WID-SEC-W-2024-1248Xerox FreeFlow Print Server: Mehrere Schwachstellen

Ein Angreifer kann mehrere Schwachstellen in Xerox FreeFlow Print Server ausnutzen, um die Vertraulichkeit, Verfügbarkeit und Integrität des Systems zu gefährden

Official advisory
BSI · German · WID-SEC-W-2024-1226Red Hat OpenShift: Mehrere Schwachstellen

Ein Angreifer kann mehrere Schwachstellen in Red Hat OpenShift ausnutzen, um Dateien zu manipulieren, einen Denial-of-Service-Zustand zu verursachen, beliebigen Code auszuführen, vertrauliche Informationen offenzulegen, seine Privilegien zu erweitern oder um weitere nicht spezifizierte Angriffe auszuführen.

Official advisory
BSI · German · WID-SEC-W-2023-2193libTIFF: Mehrere Schwachstellen

Ein entfernter, anonymer Angreifer kann mehrere Schwachstellen in libTIFF ausnutzen, um einen Denial of Service Angriff durchzuführen oder Code auszuführen.

Official advisory
CERT-FR · French · CERTFR-2026-AVI-0218Multiples vulnérabilités dans les produits VMware

d?id=CVE-2023-36660 Référence CVE CVE-2023-37369 https://www.cve.org/CVERecord?id=CVE-2023-37369 Référence CVE CVE-2023-38197 https://www.cve.org/CVERecord?id=CVE-2023-38197 Référence CVE CVE-2023-38545 https://www.cve.org/CVERecord?id=CVE-2023-38545 Référence CVE CVE-2023-38546 https://www.cve.org/CVERecord?id=CVE-2023-38546 Référence CVE CVE-2023-39615 https://www.cve.org/CVERecord?id=CVE-2023-39615 Référence CVE CVE-2023-39804 https://www.cve.org/CVERecord?id=CVE-2023-39804 Référence CVE CVE-2023-39810 https://www.cve.org/CVERecord?id=CVE-2023-39810 Référence CVE CVE-2023-40403 https://www.cve.org/CVERecord?id=CVE-2023-40403 Référence CVE CVE-2023-40745 https://www.cve.org/CVERecord?id=CVE-2023-40745 Référence CVE CVE-2023-41175 https://www.cve.org/CVERecord?id=CVE-2023-41175 Référence CVE CVE-2023-4156 https://www.cve.org/CVERecord?id=CVE-2023-4156 Référence CVE CVE-2023-42366 https://www.cve.org/CVERecord?id=CVE-2023-42366 Référence CVE CVE-2023-4527 https://www.cve.org/CVERecord?id=CVE-2023-4527 Référence CVE CVE-2023-45322 https://www.cve.org/CVERecord?id=CVE-2023-45322 Référence CVE CVE-2023-45803 https://www.cve.org/CVERecord?id=CVE-2023-45803 Référence CVE CVE-2023-45853 https://www.cve.org/CVERecord?id=CVE-2023-45853 Référence CVE CVE-2023-46218 https://www.cve.org/CVERecord?id=CVE-

Official advisory
CERT-FR · French · CERTFR-2025-AVI-0969Multiples vulnérabilités dans les produits VMware

ERecord?id=CVE-2023-39328 Référence CVE CVE-2023-39593 https://www.cve.org/CVERecord?id=CVE-2023-39593 Référence CVE CVE-2023-39615 https://www.cve.org/CVERecord?id=CVE-2023-39615 Référence CVE CVE-2023-3978 https://www.cve.org/CVERecord?id=CVE-2023-3978 Référence CVE CVE-2023-39978 https://www.cve.org/CVERecord?id=CVE-2023-39978 Référence CVE CVE-2023-4016 https://www.cve.org/CVERecord?id=CVE-2023-4016 Référence CVE CVE-2023-40217 https://www.cve.org/CVERecord?id=CVE-2023-40217 Référence CVE CVE-2023-4039 https://www.cve.org/CVERecord?id=CVE-2023-4039 Référence CVE CVE-2023-40403 https://www.cve.org/CVERecord?id=CVE-2023-40403 Référence CVE CVE-2023-40745 https://www.cve.org/CVERecord?id=CVE-2023-40745 Référence CVE CVE-2023-4091 https://www.cve.org/CVERecord?id=CVE-2023-4091 Référence CVE CVE-2023-41175 https://www.cve.org/CVERecord?id=CVE-2023-41175 Référence CVE CVE-2023-4154 https://www.cve.org/CVERecord?id=CVE-2023-4154 Référence CVE CVE-2023-42669 https://www.cve.org/CVERecord?id=CVE-2023-42669 Référence CVE CVE-2023-42670 https://www.cve.org/CVERecord?id=CVE-2023-42670 Référence CVE CVE-2023-43887 https://www.cve.org/CVERecord?id=CVE-2023-43887 Référence CVE CVE-2023-44487 https://www.cve.org/CVERecord?id=CVE-2023-44487 Référence CVE CVE-2023-4527 https://www.cve.org/CVERecord?id=CVE-2

Official advisory
CERT-FR · French · CERTFR-2024-AVI-1103Multiples vulnérabilités dans les produits IBM

Record?id=CVE-2023-3316 Référence CVE CVE-2023-3446 https://www.cve.org/CVERecord?id=CVE-2023-3446 Référence CVE CVE-2023-3576 https://www.cve.org/CVERecord?id=CVE-2023-3576 Référence CVE CVE-2023-37536 https://www.cve.org/CVERecord?id=CVE-2023-37536 Référence CVE CVE-2023-38264 https://www.cve.org/CVERecord?id=CVE-2023-38264 Référence CVE CVE-2023-38288 https://www.cve.org/CVERecord?id=CVE-2023-38288 Référence CVE CVE-2023-38289 https://www.cve.org/CVERecord?id=CVE-2023-38289 Référence CVE CVE-2023-38325 https://www.cve.org/CVERecord?id=CVE-2023-38325 Référence CVE CVE-2023-40217 https://www.cve.org/CVERecord?id=CVE-2023-40217 Référence CVE CVE-2023-40745 https://www.cve.org/CVERecord?id=CVE-2023-40745 Référence CVE CVE-2023-41175 https://www.cve.org/CVERecord?id=CVE-2023-41175 Référence CVE CVE-2023-41334 https://www.cve.org/CVERecord?id=CVE-2023-41334 Référence CVE CVE-2023-4421 https://www.cve.org/CVERecord?id=CVE-2023-4421 Référence CVE CVE-2023-4759 https://www.cve.org/CVERecord?id=CVE-2023-4759 Référence CVE CVE-2023-4806 https://www.cve.org/CVERecord?id=CVE-2023-4806 Référence CVE CVE-2023-4807 https://www.cve.org/CVERecord?id=CVE-2023-4807 Référence CVE CVE-2023-4813 https://www.cve.org/CVERecord?id=CVE-2023-4813 Référence CVE CVE-2023-49083 https://www.cve.org/CVERecord?id=CVE-2023-4

Official advisory
03

Patch and workaround

Operational remediation based on structured source evidence.

Status
?Patch availability is based on structured fixed-version fields and authoritative update references. If no fix is verified, check the vendor advisory before making a change.
Patch available
Affected
< 4.6.0
Fixed
0:4.4.0-12.el9 < *
Action
Review the linked authoritative reference and apply the recorded fixed release appropriate to the affected product branch.
Workaround
No verified workaround is recorded. If business-safe, reduce exposure to the affected interface and allow only trusted sources until authoritative guidance is available.
04

Evidence and provenance

Published 5 Oct 2023 · Last source change 22 Jan 2026, 15:42 UTC · CWE-190 · Integer Overflow or Wraparound

CVE recordCVE.org · 5.2
CVSS sourceCNA
EPSS source
?The date BlackTree first stored a score for this CVE from the daily FIRST EPSS feed.
FIRST · tracked since 2026-08-14
European sourceENISA EUVD · EUVD-2023-45298
Product sourceCNA
Remediation sourceCVE/CNA references
CWE sourceCNA
NVD statusNVD modified after enrichment

Missing structured fields: affected product. Missing data is not evidence of low risk; review the primary advisory.

Material change intelligence

What changed after publication

View recent updates →

No material field changes have been recorded since change tracking began. Routine source refreshes and cosmetic edits are intentionally excluded.

Material fields only · duplicate refreshes suppressed · history retained for the configured operational retention period
Technical terms and abbreviations used in this report
CVE
Common Vulnerabilities and Exposures: the public identifier for one disclosed vulnerability.
CVSS
Common Vulnerability Scoring System: a technical severity framework; it is not patching priority by itself.
EPSS
Exploit Prediction Scoring System: FIRST's estimate of the probability that exploitation activity will be observed in the next 30 days; it is a forecast, not confirmation.
CWE
Common Weakness Enumeration: the standard category describing the underlying software or hardware weakness.
CNA
CVE Numbering Authority: an organisation authorised to assign and publish CVE records.
CISA ADP
Cybersecurity and Infrastructure Security Agency Authorized Data Publisher: structured enrichment added to a CVE record.
NVD
National Vulnerability Database: NIST's enrichment service for CVE records.
CERT / CSIRT
A computer security incident response team that publishes warnings or coordinates incident response.
PoC
Proof of concept: public material that demonstrates or helps reproduce exploitation.
CSAF
Common Security Advisory Framework: a machine-readable format for security advisories.
LoTL
Living off the land: abuse of legitimate tools or system functions during an attack.
Free version - for non-commercial use only.CVE-2023-40745 · cve.blacktree.nl