BlackTreeCVE Intelligence
← Back to the CVE catalogue
Full vulnerability report · 2023
CVE-2023-30086High confidence

Buffer Overflow vulnerability found in Libtiff V.4.0.7 allows a local attacker to cause a denial of service via the tiffcp function in tiffcp.c

Unknown · Unknown

Official source article: Siemens SSA-806742 ↗. Check the applicable product and release in the original source.

5.5MediumCVSS 3.1
Recommended action
Patch only the product branches with a verified fix

Medium technical severity with public exploit material referenced by a structured source; prioritise exposed affected systems while verifying vendor guidance. Verified remediation exists for at least one product or source, but 11 structured product or package states remain unresolved. Apply remediation only to the exact product branch confirmed by its source.

Fix availability varies by product
R
Operational reassessment

Published severity in operational context

Open reassessment dashboard →
Published severityMediumOperational priority:Medium, unchanged from published severity.unchanged

Evidence used

  • No CISA KEV confirmation is currently recorded.
  • A structured source references public exploit or proof-of-concept material.
  • Exploitation requires an existing local or physical foothold with privileges.
  • EPSS is 0.31% for the current model date.

Compensating controls

  • Validate the affected product branch and deploy the verified fixed release.
  • Restrict local access and enforce least privilege on affected hosts.
  • Increase monitoring for the attack path and post-exploitation behaviour described in the report.

Verification

  1. Confirm that the asset runs Unknown Unknown and falls inside the recorded affected range.
  2. Verify the installed build against the product-specific fixed version after deployment.
  3. Validate exposure, authentication requirements and compensating controls in the actual environment.
  4. Reopen this reassessment when CVSS, KEV, EPSS, exploit evidence or remediation changes.
Mitigation target: As exposure requiresRemediation target: Within 365 days

This automated reassessment organises public evidence. It does not know asset exposure, business impact or control effectiveness and does not replace CVSS or a human risk decision.

Cross-source reconciliation

Remediation availability differs by product scope

Verified remediation exists for at least one product or source, but 11 structured product or package states remain unresolved. Apply remediation only to the exact product branch confirmed by its source.

Distribution package intelligence

Release-specific package status

Debian findings are scoped to the named distribution, release and source package. An absent finding does not mean a package is unaffected.

4 package states
Repository candidate not checked

A published vendor fix does not prove that a matching update is enabled and installable on a particular asset. Confirm the local package candidate before scheduling remediation.

Distribution releaseSource packageVendor stateFixed versionEvidence
Debian trixietrixie · sourcetiffVendor fix publishedDebian records a fixed source-package version for this release.4.4.0-5Debian Security Tracker ↗Source updated 5 Oct 2026
Debian bookwormbookworm · sourcetiffVendor fix publishedDebian records a fixed source-package version for this release.4.4.0-5Debian Security Tracker ↗Source updated 5 Oct 2026
Debian forkyforky · sourcetiffVendor fix publishedDebian records a fixed source-package version for this release.4.4.0-5Debian Security Tracker ↗Source updated 5 Oct 2026
Debian sidsid · sourcetiffVendor fix publishedDebian records a fixed source-package version for this release.4.4.0-5Debian Security Tracker ↗Source updated 5 Oct 2026
Direct vendor intelligence

Authoritative vendor CSAF and VEX advisories

Structured product status and remediation from the issuing vendor. Product-state explanations are always visible; large lists can be searched or downloaded.

1 current
SSA-806742 · CSAF 2.0 · revision 1 · interimSiemens ProductCERTSSA-806742: Multiple Vulnerabilities in SCALANCE XCM-/XRM-300 before V2.4
11 known affected

The vendor explicitly identifies these products as affected by this CVE.

  • SCALANCE XCH328 (6GK5328-4TS01-2EC2)
  • SCALANCE XCM324 (6GK5324-8TS01-2AC2)
  • SCALANCE XCM328 (6GK5328-4TS01-2AC2)
  • SCALANCE XCM332 (6GK5332-0GA01-2AC2)
  • SCALANCE XRH334 (24 V DC, 8xFO, CC) (6GK5334-2TS01-2ER3)
  • SCALANCE XRM334 (230 V AC, 12xFO) (6GK5334-3TS01-3AR3)
  • SCALANCE XRM334 (230 V AC, 8xFO) (6GK5334-2TS01-3AR3)
  • SCALANCE XRM334 (24 V DC, 12xFO) (6GK5334-3TS01-2AR3)
  • SCALANCE XRM334 (24 V DC, 8xFO) (6GK5334-2TS01-2AR3)
  • SCALANCE XRM334 (2x230 V AC, 12xFO) (6GK5334-3TS01-4AR3)
  • SCALANCE XRM334 (2x230 V AC, 8xFO) (6GK5334-2TS01-4AR3)
Summary
Buffer Overflow vulnerability found in Libtiff V.4.0.7 allows a local attacker to cause a denial of service via the tiffcp function in tiffcp.c.
Remediation
Update to V2.4 or later version
Optional official sources

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

Choose official national sources for this report. Each advisory shows its original language. Your selection is remembered on this device and included in shared links.

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-2023-34519

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 actionPatch only the product branches with a verified fix

Medium technical severity with public exploit material referenced by a structured source; prioritise exposed affected systems while verifying vendor guidance. Verified remediation exists for at least one product or source, but 11 structured product or package states remain unresolved. Apply remediation only to the exact product branch confirmed by its source.

Fix availability varies by product
01

What, why and how

Buffer Overflow vulnerability found in Libtiff V.4.0.7 allows a local attacker to cause a denial of service via the tiffcp function in tiffcp.c.

What

Buffer Overflow vulnerability found in Libtiff V.4.0.7 allows a local attacker to cause a denial of service via the tiffcp function in tiffcp.c.

Why

A bounds error lets data be written beyond the intended memory region, potentially corrupting control data.

How

An attacker operating through local access may attempt exploitation with low privileges. If successful, the issue may disrupt the affected service.

What

Buffer Overflow vulnerability found in Libtiff V.4.0.7 allows a local attacker to cause a denial of service via the tiffcp function in tiffcp.c.

Why

A bounds error lets data be written beyond the intended memory region, potentially corrupting control data.

How

An attacker operating through local access may attempt exploitation with low privileges. If successful, the issue may disrupt the affected service.

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.
Reference recorded

A structured CVE source labels at least one public reference as exploit material. BlackTree has not independently validated that it is safe, reliable or weaponised.

Likely attack path
local access → Out-of-bounds Write → disrupt the affected service
Attack surface
Local
Privileges required
Low: a basic authenticated account is required
User interaction
None
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-787 ↗

CWE-787: Out-of-bounds Write. The product writes data past the end, or before the beginning, of the intended buffer.

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

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

AVLocalAttack vector: The attacker needs local access to the vulnerable system.ACLowAttack complexity: No specialised conditions are required beyond attacker-controlled input.PRLowPrivileges required: The attacker needs basic user-level privileges.UINoneUser interaction: No action by another user is required.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
The issue can support a local privilege or sandbox boundary transition; normal system utilities may then be available in the gained context.
Denial of serviceCWE-787Public exploit reference
A

Official authority intelligence

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

BSI · German · WID-SEC-2023-2031Xerox 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-2023-1182libTIFF: Schwachstelle ermöglicht Denial of Service

Ein lokaler Angreifer kann eine Schwachstelle in libTIFF ausnutzen, um einen Denial of Service Angriff durchzuführen.

Official advisory ↗
Cyber Security Agency of Singapore · English · CSA-SB-20230510Security Bulletin 10 May 2023

The Cyber Security Agency of Singapore included this CVE in its official Security Bulletin 10 May 2023, published on 10 May 2023. Open the linked bulletin for the product, severity and reference information published in that issue.

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

ecord?id=CVE-2023-28321 Référence CVE CVE-2023-28322 https://www.cve.org/CVERecord?id=CVE-2023-28322 Référence CVE CVE-2023-28484 https://www.cve.org/CVERecord?id=CVE-2023-28484 Référence CVE CVE-2023-2908 https://www.cve.org/CVERecord?id=CVE-2023-2908 Référence CVE CVE-2023-29383 https://www.cve.org/CVERecord?id=CVE-2023-29383 Référence CVE CVE-2023-29469 https://www.cve.org/CVERecord?id=CVE-2023-29469 Référence CVE CVE-2023-29491 https://www.cve.org/CVERecord?id=CVE-2023-29491 Référence CVE CVE-2023-29499 https://www.cve.org/CVERecord?id=CVE-2023-29499 Référence CVE CVE-2023-2953 https://www.cve.org/CVERecord?id=CVE-2023-2953 Référence CVE CVE-2023-30086 https://www.cve.org/CVERecord?id=CVE-2023-30086 Référence CVE CVE-2023-30571 https://www.cve.org/CVERecord?id=CVE-2023-30571 Référence CVE CVE-2023-30774 https://www.cve.org/CVERecord?id=CVE-2023-30774 Référence CVE CVE-2023-30775 https://www.cve.org/CVERecord?id=CVE-2023-30775 Référence CVE CVE-2023-31484 https://www.cve.org/CVERecord?id=CVE-2023-31484 Référence CVE CVE-2023-31486 https://www.cve.org/CVERecord?id=CVE-2023-31486 Référence CVE CVE-2023-3164 https://www.cve.org/CVERecord?id=CVE-2023-3164 Référence CVE CVE-2023-32181 https://www.cve.org/CVERecord?id=CVE-2023-32181 Référence CVE CVE-2023-32573 https://www.cve.org/CVERecord?id=CV

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

ecord?id=CVE-2023-29404 Référence CVE CVE-2023-29405 https://www.cve.org/CVERecord?id=CVE-2023-29405 Référence CVE CVE-2023-29406 https://www.cve.org/CVERecord?id=CVE-2023-29406 Référence CVE CVE-2023-29409 https://www.cve.org/CVERecord?id=CVE-2023-29409 Référence CVE CVE-2023-29469 https://www.cve.org/CVERecord?id=CVE-2023-29469 Référence CVE CVE-2023-29491 https://www.cve.org/CVERecord?id=CVE-2023-29491 Référence CVE CVE-2023-29499 https://www.cve.org/CVERecord?id=CVE-2023-29499 Référence CVE CVE-2023-2975 https://www.cve.org/CVERecord?id=CVE-2023-2975 Référence CVE CVE-2023-2976 https://www.cve.org/CVERecord?id=CVE-2023-2976 Référence CVE CVE-2023-30086 https://www.cve.org/CVERecord?id=CVE-2023-30086 Référence CVE CVE-2023-30571 https://www.cve.org/CVERecord?id=CVE-2023-30571 Référence CVE CVE-2023-30774 https://www.cve.org/CVERecord?id=CVE-2023-30774 Référence CVE CVE-2023-31437 https://www.cve.org/CVERecord?id=CVE-2023-31437 Référence CVE CVE-2023-31438 https://www.cve.org/CVERecord?id=CVE-2023-31438 Référence CVE CVE-2023-31439 https://www.cve.org/CVERecord?id=CVE-2023-31439 Référence CVE CVE-2023-31484 https://www.cve.org/CVERecord?id=CVE-2023-31484 Référence CVE CVE-2023-31486 https://www.cve.org/CVERecord?id=CVE-2023-31486 Référence CVE CVE-2023-3164 https://www.cve.org/CVERecord?id=C

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

ERecord?id=CVE-2023-23931 Référence CVE CVE-2023-24816 https://www.cve.org/CVERecord?id=CVE-2023-24816 Référence CVE CVE-2023-25194 https://www.cve.org/CVERecord?id=CVE-2023-25194 Référence CVE CVE-2023-25434 https://www.cve.org/CVERecord?id=CVE-2023-25434 Référence CVE CVE-2023-25435 https://www.cve.org/CVERecord?id=CVE-2023-25435 Référence CVE CVE-2023-2650 https://www.cve.org/CVERecord?id=CVE-2023-2650 Référence CVE CVE-2023-26965 https://www.cve.org/CVERecord?id=CVE-2023-26965 Référence CVE CVE-2023-2731 https://www.cve.org/CVERecord?id=CVE-2023-2731 Référence CVE CVE-2023-2908 https://www.cve.org/CVERecord?id=CVE-2023-2908 Référence CVE CVE-2023-30086 https://www.cve.org/CVERecord?id=CVE-2023-30086 Référence CVE CVE-2023-30774 https://www.cve.org/CVERecord?id=CVE-2023-30774 Référence CVE CVE-2023-30775 https://www.cve.org/CVERecord?id=CVE-2023-30775 Référence CVE CVE-2023-31130 https://www.cve.org/CVERecord?id=CVE-2023-31130 Référence CVE CVE-2023-3164 https://www.cve.org/CVERecord?id=CVE-2023-3164 Référence CVE CVE-2023-32067 https://www.cve.org/CVERecord?id=CVE-2023-32067 Référence CVE CVE-2023-32681 https://www.cve.org/CVERecord?id=CVE-2023-32681 Référence CVE CVE-2023-3316 https://www.cve.org/CVERecord?id=CVE-2023-3316 Référence CVE CVE-2023-3446 https://www.cve.org/CVERecord?id=CVE-2

Official advisory ↗
CERT-FR · French · CERTFR-2024-AVI-0119Multiples vulnérabilités dans les produits Siemens

ERecord?id=CVE-2023-28709 Référence CVE CVE-2023-29402 https://www.cve.org/CVERecord?id=CVE-2023-29402 Référence CVE CVE-2023-29404 https://www.cve.org/CVERecord?id=CVE-2023-29404 Référence CVE CVE-2023-29405 https://www.cve.org/CVERecord?id=CVE-2023-29405 Référence CVE CVE-2023-29406 https://www.cve.org/CVERecord?id=CVE-2023-29406 Référence CVE CVE-2023-29409 https://www.cve.org/CVERecord?id=CVE-2023-29409 Référence CVE CVE-2023-2953 https://www.cve.org/CVERecord?id=CVE-2023-2953 Référence CVE CVE-2023-2975 https://www.cve.org/CVERecord?id=CVE-2023-2975 Référence CVE CVE-2023-3006 https://www.cve.org/CVERecord?id=CVE-2023-3006 Référence CVE CVE-2023-30086 https://www.cve.org/CVERecord?id=CVE-2023-30086 Référence CVE CVE-2023-30456 https://www.cve.org/CVERecord?id=CVE-2023-30456 Référence CVE CVE-2023-30581 https://www.cve.org/CVERecord?id=CVE-2023-30581 Référence CVE CVE-2023-30582 https://www.cve.org/CVERecord?id=CVE-2023-30582 Référence CVE CVE-2023-30583 https://www.cve.org/CVERecord?id=CVE-2023-30583 Référence CVE CVE-2023-30584 https://www.cve.org/CVERecord?id=CVE-2023-30584 Référence CVE CVE-2023-30585 https://www.cve.org/CVERecord?id=CVE-2023-30585 Référence CVE CVE-2023-30586 https://www.cve.org/CVERecord?id=CVE-2023-30586 Référence CVE CVE-2023-30587 https://www.cve.org/CVERecord?id=

Official advisory ↗
JVN iPedia · Japanese · JVNDB-2023-010105LibTIFF における境界外書き込みに関する脆弱性

LibTIFF には、境界外書き込みに関する脆弱性が存在します。

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.
Fix availability varies by product
Affected
Fixed
No fixed version is explicitly recorded in the structured CVE data.
Action
Use the product-specific evidence above. Patch only products with a verified fixed release, and keep every affected or under-investigation state without a matching fix in the remediation queue.
Workaround
No verified workaround is recorded. Limit untrusted access and use least privilege until authoritative guidance is available.
04

Evidence and provenance

Published 9 May 2023 · Last source change 9 Jul 2026, 00:25 UTC · CWE-787 · Out-of-bounds Write

CVE recordCVE.org · 5.2
CVSS sourceNIST NVD
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-2023-34519
Product sourceVendor CSAF · Siemens ProductCERT
Remediation sourceVendor CSAF · Siemens ProductCERT
CWE sourceCISA ADP
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 ↗
  1. Remediation statusRemediation status changed from Awaiting fix to Mitigation available.
    Before
    Awaiting fix
    After
    Mitigation available
    Siemens ProductCERT ↗
Material fields only · duplicate refreshes suppressed · history retained for the configured operational retention period
CVE published
Remediation guidance recorded
ENISA EUVD · EUVD-2023-34519↗Siemens ProductCERT security advisory · Siemens SSA-806742↗Public exploit reference↗Official CVE record (CNA and ADP data)↗NVD record↗
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-2023-30086 · cve.blacktree.nl