BlackTreeCVE Intelligence
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Full vulnerability report · 2017
CVE-2017-6455High confidence

NTP before 4.2.8p10 and 4.3.x before 4.3.94, when using PPSAPI, allows local users to gain privileges via a DLL in the PPSAPI_DLLS environment variable

n/a · n/a

7.0HighCVSS 3.0
Recommended action
Within 7 days

High technical severity; prioritise exposed affected systems while verifying vendor guidance.

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-2017-15512

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 actionWithin 7 days

High technical severity; prioritise exposed affected systems while verifying vendor guidance.

Patch available
01

What, why and how

NTP before 4.2.8p10 and 4.3.x before 4.3.94, when using PPSAPI, allows local users to gain privileges via a DLL in the PPSAPI_DLLS environment variable.

What

NTP before 4.2.8p10 and 4.3.x before 4.3.94, when using PPSAPI, allows local users to gain privileges via a DLL in the PPSAPI_DLLS environment variable.

Why

Untrusted data can cross into a code-evaluation path and be interpreted as executable instructions.

How

An attacker operating through local access may attempt exploitation with low privileges. If successful, the issue may cause the confidentiality, integrity or availability impact described by the vendor.

What

NTP before 4.2.8p10 and 4.3.x before 4.3.94, when using PPSAPI, allows local users to gain privileges via a DLL in the PPSAPI_DLLS environment variable.

Why

Untrusted data can cross into a code-evaluation path and be interpreted as executable instructions.

How

An attacker operating through local access may attempt exploitation with low privileges. If successful, the issue may cause the confidentiality, integrity or availability impact described by the vendor.

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
local access → Improper Control of Generation of Code ('Code Injection') → cause the confidentiality, integrity or availability impact described by the vendor
Attack surface
Local
Privileges required
Low: a basic authenticated account is required
User interaction
None
Attack complexity
High: exploitation depends on specific conditions
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-94 ↗

CWE-94: Improper Control of Generation of Code ('Code Injection'). The product constructs all or part of a code segment using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the syntax or behavior of the intended code segment.

CVSS vector
?CVSS means Common Vulnerability Scoring System. The vector records the metric values used to calculate technical severity.
CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

Common Vulnerability Scoring System 3.0: the compact vector below is decoded into plain language.

AVLocalAttack vector: The attacker needs local access to the vulnerable system.ACHighAttack complexity: Successful exploitation depends on specific conditions outside the attacker's direct control.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.CHighConfidentiality impact: A successful attack can cause a major loss.IHighIntegrity impact: A successful attack can cause a major loss.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.
CWE-94
A

Official authority intelligence

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

BSI · German · WID-SEC-2025-0370Apple Mac OS: Mehrere Schwachstellen

Ein entfernter, anonymer Angreifer kann mehrere Schwachstelle in Apple Mac OS ausnutzen, um Code mit Kernel Privilegien auszuführen, Sicherheitsvorkehrungen zu umgehen, einen Denial of Service Angriff durchzuführen oder vertrauliche Daten einzusehen.

Official advisory ↗
Canadian Centre for Cyber Security · English · AV17-143Apple security updates

Number: AV17-143 Date: 26 September 2017 Purpose The purpose of this advisory is to bring attention to multiple Apple system security updates for iCloud for Windows, macOS High Sierra and macOS Server. Assessment Apple has released the following support articles addressing security vulnerabilities in various products: iCloud for Windows 7.0 macOS High Sierra 10.13 macOS Server 5.4 CVE Reference: CVE-2017-6451,  CVE-2017-7080,  CVE-2017-7092,  CVE-2017-7130, CVE-2016-9042, CVE-2016-9063, CVE-2016-9840, CVE-2016-9841, CVE-2016-9842, CVE-2016-9843, CVE-2017-0381, CVE-2017-6452, CVE-2017-6455, CVE-2017-6458, CVE-2017-6459, CVE-2017-6460, CVE-2017-6462, CVE-2017-6463, CVE-2017-6464, CVE-2017-7074, CVE-2017-7077, CVE-2017-7078, CVE-2017-7081, CVE-2017-7082, CVE-2017-7083, CVE-2017-7084, CVE-2017-7087, CVE-2017-7090, CVE-2017-7091, CVE-2017-7093, CVE-2017-7094, CVE-2017-7095, CVE-2017-7096, CVE-2017-7097, CVE-2017-7098, CVE-2017-7099, CVE-2017-7100, CVE-2017-7102, CVE-2017-7104, CVE-2017-7106, CVE-2017-7107, CVE-2017-7109, CVE-2017-7111, CVE-2017-7114; CVE-2017-7086, CVE-2017-7117, CVE-2017-7119, CVE-2017-7120, CVE-2017-7121, CVE-2017-7122, CVE-2017-7123, CVE-2017-7124, CVE-2017-7125, CVE-2017-7126, CVE-2017-7127, CVE-2017-7128, CVE

Official advisory ↗
CERT-FR · French · CERTFR-2026-AVI-1124Multiples vulnérabilités dans les produits Juniper Networks

De multiples vulnérabilités ont été découvertes dans les produits Juniper Networks. Certaines d'entre elles permettent à un attaquant de provoquer une exécution de code arbitraire, une élévation de privilèges et un déni de service à distance.

Official advisory ↗
CERT-FR · French · CERTFR-2017-AVI-320Multiples vulnérabilités dans les produits Apple

cord?id=CVE-2016-9843 Référence CVE CVE-2017-0381 https://www.cve.org/CVERecord?id=CVE-2017-0381 Référence CVE CVE-2017-1000373 https://www.cve.org/CVERecord?id=CVE-2017-1000373 Référence CVE CVE-2017-10978 https://www.cve.org/CVERecord?id=CVE-2017-10978 Référence CVE CVE-2017-10979 https://www.cve.org/CVERecord?id=CVE-2017-10979 Référence CVE CVE-2017-10989 https://www.cve.org/CVERecord?id=CVE-2017-10989 Référence CVE CVE-2017-11103 https://www.cve.org/CVERecord?id=CVE-2017-11103 Référence CVE CVE-2017-6451 https://www.cve.org/CVERecord?id=CVE-2017-6451 Référence CVE CVE-2017-6452 https://www.cve.org/CVERecord?id=CVE-2017-6452 Référence CVE CVE-2017-6455 https://www.cve.org/CVERecord?id=CVE-2017-6455 Référence CVE CVE-2017-6458 https://www.cve.org/CVERecord?id=CVE-2017-6458 Référence CVE CVE-2017-6459 https://www.cve.org/CVERecord?id=CVE-2017-6459 Référence CVE CVE-2017-6460 https://www.cve.org/CVERecord?id=CVE-2017-6460 Référence CVE CVE-2017-6462 https://www.cve.org/CVERecord?id=CVE-2017-6462 Référence CVE CVE-2017-6463 https://www.cve.org/CVERecord?id=CVE-2017-6463 Référence CVE CVE-2017-6464 https://www.cve.org/CVERecord?id=CVE-2017-6464 Référence CVE CVE-2017-7074 https://www.cve.org/CVERecord?id=CVE-2017-7074 Référence CVE CVE-2017-7077 https://www.cve.org/CVERecord?id=CVE-2017-7077 Ré

Official advisory ↗
JVN iPedia · Japanese · JVNDB-2017-002166NTP における権限を取得される脆弱性

NTP には、PPSAPI を使用する場合、権限を取得され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.
Patch available
Affected
n/a: n/a
Fixed
An authoritative update reference is available, but the fixed version is not recorded in the structured CVE fields. Check the linked vendor advisory for the applicable release.
Action
Review the linked authoritative reference and apply the recorded fixed release appropriate to the affected product branch.
Workaround
No verified workaround is recorded. Limit untrusted access and use least privilege until authoritative guidance is available.
04

Evidence and provenance

Published 27 Mar 2017 · Last source change 5 Aug 2024, 15:33 UTC · CWE-94 · Improper Control of Generation of Code ('Code Injection')

CVE recordCVE.org · 5.1
CVSS sourceNIST NVD
EPSS source
?The date BlackTree first stored a score for this CVE from the daily FIRST EPSS feed.
FIRST · tracked since 2026-09-01
European sourceENISA EUVD · EUVD-2017-15512
Product sourceCNA
Remediation sourceCVE/CNA references
CWE sourceNIST NVD
NVD statusNVD modified after enrichment

Core structured fields are present and their contributing authorities are shown above.

Material change intelligence

What changed after publication

View recent updates ↗
  1. Vendor guidanceAuthoritative vendor guidance changed from no authoritative guidance recorded to authoritative remediation link · patch, vendor advisory.
    Before
    no authoritative guidance recorded
    After
    authoritative remediation link · patch, vendor advisory
    af854a3a-2127-422b-91ae-364da2661108 ↗
  2. Affected versionsThe structured affected or fixed version information changed.
    Before
    n/a · Fixed: No fixed version is explicitly recorded in the structured CVE data.
    After
    n/a · Fixed: An authoritative update reference is available, but the fixed version is not recorded in the structured CVE fields. Check the linked vendor advisory for the applicable release.
    CNA ↗
  3. Remediation statusRemediation status changed from Awaiting fix to Patch available.
    Before
    Awaiting fix
    After
    Patch available
    af854a3a-2127-422b-91ae-364da2661108 ↗
  4. SeveritySeverity changed from Unknown to High.
    Before
    Unknown
    After
    High
    NIST NVD ↗
  5. CVSS scoreCVSS score changed from not recorded to 7.0 (CVSS 3.0 · NIST NVD · CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H).
    Before
    not recorded
    After
    7.0 (CVSS 3.0 · NIST NVD · CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H)
    NIST NVD ↗
  6. ENISA EUVD mappingEUVD-2017-15512 was added to the official ENISA EUVD mapping for this CVE.
    Before
    not recorded
    After
    {"euvdId":"EUVD-2017-15512"}
    ENISA EUVD ↗
  7. Catalogue recordCVE added to the BlackTree catalogue.
    CNA ↗
Material fields only · duplicate refreshes suppressed · history retained for the configured operational retention period
CVE published
Fixed release or patch reference recorded
ENISA EUVD · EUVD-2017-15512↗Patch or update reference↗Vendor advisory↗CVE authority or vendor 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-2017-6455 · cve.blacktree.nl