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Full vulnerability report · 2017
CVE-2017-16363High confidence

The vulnerability is caused by a buffer over-read in the module that handles character codes for certain textual representations

Unknown · Adobe Acrobat Reader 2017.012.20098 and earlier versions, 2017.011.30066 and earlier versions, 2015.006.30355 and earlier versions, 11.0.22 and earlier versions

Official source article: Adobe APSB17-36 ↗. Check the applicable product and release in the original source.

8.8HighCVSS 3.0
Recommended action
Within 7 days

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

Fix not verified
R
Operational reassessment

Published severity in operational context

Open reassessment dashboard →
Published severityHighOperational priority:High, unchanged from published severity.unchanged

Evidence used

  • No CISA KEV confirmation is currently recorded.
  • EPSS is 6.88% for the current model date.

Compensating controls

  • Restrict the affected network interface to trusted sources where business-safe.
  • Monitor vendor guidance and exploitation sources for a material change.

Verification

  1. Confirm that the asset runs Unknown Adobe Acrobat Reader 2017.012.20098 and earlier versions, 2017.011.30066 and earlier versions, 2015.006.30355 and earlier versions, 11.0.22 and earlier versions and falls inside the recorded affected range.
  2. Recheck the vendor advisory before scheduling a change because no verified fixed version is currently retained.
  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: Within 30 daysRemediation target: Within 180 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.

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-2017-7557

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.

Fix not verified
01

What, why and how

An issue was discovered in Adobe Acrobat and Reader: 2017.012.20098 and earlier versions, 2017.011.30066 and earlier versions, 2015.006.30355 and earlier versions, and 11.0.22 and earlier versions. The vulnerability is caused by a buffer over-read in the module that handles character codes for certain textual representations. Invalid input leads to a computation where the pointer arithmetic results in a location outside valid memory locations belonging to the buffer. An attack can be used to obtain sensitive information, such as object heap addresses, etc.

What

An issue was discovered in Adobe Acrobat and Reader: 2017.012.20098 and earlier versions, 2017.011.30066 and earlier versions, 2015.006.30355 and earlier versions, and 11.0.22 and earlier versions. The vulnerability is caused by a buffer over-read in the module that handles character codes for certain textual representations. Invalid input leads to a computation where the pointer arithmetic results in a location outside valid memory locations belonging to the buffer. An attack can be used to obtain sensitive information, such as object heap addresses, etc.

Why

The product reads data past the end, or before the beginning, of the intended buffer.

How

An attacker operating through a network path may attempt exploitation without authentication after a user interaction. If successful, the issue may obtain information outside the intended access boundary.

What

An issue was discovered in Adobe Acrobat and Reader: 2017.012.20098 and earlier versions, 2017.011.30066 and earlier versions, 2015.006.30355 and earlier versions, and 11.0.22 and earlier versions. The vulnerability is caused by a buffer over-read in the module that handles character codes for certain textual representations. Invalid input leads to a computation where the pointer arithmetic results in a location outside valid memory locations belonging to the buffer. An attack can be used to obtain sensitive information, such as object heap addresses, etc.

Why

The product reads data past the end, or before the beginning, of the intended buffer.

How

An attacker operating through a network path may attempt exploitation without authentication after a user interaction. If successful, the issue may obtain information outside the intended access boundary.

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 → Out-of-bounds Read → obtain information outside the intended access boundary
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-125 ↗

CWE-125: Out-of-bounds Read. The product reads 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:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Common Vulnerability Scoring System 3.0: 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.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
No specific living-off-the-land technique is confirmed in the structured sources. Monitor normal administration tools for activity inconsistent with the affected service's baseline.
NetworkUnauthenticatedCWE-125
A

Official authority intelligence

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

Canadian Centre for Cyber Security · English · AV17-168Adobe security updates

Photoshop CC APSB17-35 - Adobe Connect APSB17-36 - Adobe Acrobat and Reader APSB17-37 - Adobe DNG Converter APSB17-38 - InDesign APSB17-39 - Adobe Digital Editions APSB17-40 - Adobe Shockwave Player APSB17-41 - Adobe Experience Manager CVE References: CVE-2017-3112, CVE-2017-3114, CVE-2017-11213, CVE-2017-11215, CVE-2017-11225, CVE-2017-11303, CVE-2017-11304, CVE-2017-11291, CVE-2017-11287, CVE-2017-11288, CVE-2017-11289, CVE-2017-11290, CVE-2017-16377, CVE-2017-16378, CVE-2017-16360, CVE-2017-16388, CVE-2017-16389, CVE-2017-16390, CVE-2017-16393, CVE-2017-16398, CVE-2017-16381, CVE-2017-16385, CVE-2017-16392, CVE-2017-16395, CVE-2017-16396, CVE-2017-16363, CVE-2017-16365, CVE-2017-16374, CVE-2017-16384, CVE-2017-16386, CVE-2017-16387, CVE-2017-16368, CVE-2017-16383, CVE-2017-16391, CVE-2017-16410, CVE-2017-16362, CVE-2017-16370, CVE-2017-16376, CVE-2017-16382, CVE-2017-16394, CVE-2017-16397, CVE-2017-16399, CVE-2017-16400, CVE-2017-16401, CVE-2017-16402, CVE-2017-16403, CVE-2017-16404, CVE-2017-16405, CVE-2017-16408, CVE-2017-16409, CVE-2017-16412, CVE-2017-16414, CVE-2017-16417, CVE-2017-16418, CVE-2017-16420, CVE-2017-11293, CVE-2017-16407, CVE-2017-16413, CVE-2017-16415, CVE-2017-16416, CVE-2017-16361, CVE-2017-16366, CVE-2017-16369, CVE-2017-16380, CVE-2017-16419, CVE-2017-16367, CVE-2017

Official advisory ↗
CERT-FR · French · CERTFR-2017-AVI-414Multiples vulnérabilités dans Adobe Acrobat et Reader

nce, un déni de service et une atteinte à la confidentialité des données. Solution Se référer au bulletin de sécurité de l'éditeur pour l'obtention des correctifs (cf. section Documentation). Documentation Bulletin de sécurité Adobe APSB17-36 du 14 novembre 2017 https://helpx.adobe.com/security/products/acrobat/apsb17-36.html Référence CVE CVE-2017-11293 https://www.cve.org/CVERecord?id=CVE-2017-11293 Référence CVE CVE-2017-16360 https://www.cve.org/CVERecord?id=CVE-2017-16360 Référence CVE CVE-2017-16361 https://www.cve.org/CVERecord?id=CVE-2017-16361 Référence CVE CVE-2017-16362 https://www.cve.org/CVERecord?id=CVE-2017-16362 Référence CVE CVE-2017-16363 https://www.cve.org/CVERecord?id=CVE-2017-16363 Référence CVE CVE-2017-16364 https://www.cve.org/CVERecord?id=CVE-2017-16364 Référence CVE CVE-2017-16365 https://www.cve.org/CVERecord?id=CVE-2017-16365 Référence CVE CVE-2017-16366 https://www.cve.org/CVERecord?id=CVE-2017-16366 Référence CVE CVE-2017-16367 https://www.cve.org/CVERecord?id=CVE-2017-16367 Référence CVE CVE-2017-16368 https://www.cve.org/CVERecord?id=CVE-2017-16368 Référence CVE CVE-2017-16369 https://www.cve.org/CVERecord?id=CVE-2017-16369 Référence CVE CVE-2017-16370 https://www.cve.org/CVERecord?id=CVE-2017-16370 Référence CVE CVE-2017-16371 https://www.cve.org/CVERecord?id=

Official advisory ↗
JVN iPedia · Japanese · JVNDB-2017-010664Adobe Reader および Acrobat におけるバッファオーバーリードの脆弱性

Adobe Reader および Acrobat には、バッファオーバーリードの脆弱性が存在します。

Official advisory ↗
KISA KrCERT/CC · Korean · KNVD-4817Adobe 제품군 신규 취약점 보안 업데이트 권고

- 원격 코드 실행으로 이어질 수 있는 버퍼 오버리드(over-read) 취약점(CVE-2017-16363, CVE-2017-16365, CVE-2017-

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 not verified
Affected
Adobe Acrobat Reader 2017.012.20098 and earlier versions, 2017.011.30066 and earlier versions, 2015.006.30355 and earlier versions, 11.0.22 and earlier versions: Adobe Acrobat Reader 2017.012.20098 and earlier versions, 2017.011.30066 and earlier versions, 2015.006.30355 and earlier versions, 11.0.22 and earlier versions
Fixed
No fixed version is explicitly recorded in the structured CVE data.
Action
No verified patch reference is present in the current structured sources. Check the vendor advisory before making a change.
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 9 Dec 2017 · Last source change 5 Aug 2024, 20:27 UTC · CWE-125 · Out-of-bounds Read

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-2017-7557
Product sourceCNA
Remediation sourceCVE/CNA references
CWE sourceNIST NVD
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. ENISA EUVD mappingEUVD-2017-7557 was added to the official ENISA EUVD mapping for this CVE.
    Before
    not recorded
    After
    {"euvdId":"EUVD-2017-7557"}
    ENISA EUVD ↗
  2. Vendor guidanceAuthoritative vendor guidance changed: added vendor advisory: helpx.adobe.com/apsb17-36.html.
    Before
    no authoritative guidance recorded
    After
    vendor advisory: helpx.adobe.com/apsb17-36.html
    helpx.adobe.com ↗
  3. SeveritySeverity changed from Unknown to High.
    Before
    Unknown
    After
    High
    NIST NVD ↗
  4. CVSS scoreCVSS score changed from not recorded to 8.8 (CVSS 3.0 · NIST NVD · CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H).
    Before
    not recorded
    After
    8.8 (CVSS 3.0 · NIST NVD · CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H)
    NIST NVD ↗
  5. Catalogue recordCVE added to the BlackTree catalogue.
    CNA ↗
Material fields only · duplicate refreshes suppressed · history retained for the configured operational retention period
CVE published
ENISA EUVD · EUVD-2017-7557↗Vendor advisory · Adobe APSB17-36↗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-2017-16363 · cve.blacktree.nl