CVE-2018-4879

An issue was discovered in Adobe Acrobat Reader 2018.009.20050 and earlier versions, 2017.011.30070 and earlier versions, 2015.006.30394 and earlier versions. The vulnerability is caused by the computation that writes data past the end of the intended buffer; the computation is part of the image conversion module that processes Enhanced Metafile Format Plus (EMF+) data. An attacker can potentially leverage the vulnerability to corrupt sensitive data or execute arbitrary code.

Published: 2018-02-27 Last update: 2024-11-21 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2018-4879 is rated High Risk (78.3/100): CVSS Critical severity, with high exploitation likelihood (EPSS 40.15%, 97th percentile). EPSS ranks this CVE among the most likely to be exploited in the near term. EPSS rose +9.87% over the last day, indicating growing attacker interest. High exploitation likelihood—assess exposure and prioritize remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2018-4879

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-05-17 30.28% 40.15% +9.87%
2 2026-03-17 30.40% 30.28% -0.12%
3 2025-11-21 — 30.40% —

Full EPSS history (25 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2018-4879

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
9.8 3.0 CRITICAL
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 3.9 5.9 [email protected]
10.0 2.0 HIGH
AV:N/AC:L/Au:N/C:C/I:C/A:C Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:C)
Complete confidentiality impact.
Integrity impact (I:C)
Complete integrity impact.
Availability impact (A:C)
Complete availability impact.
 10.0 10.0 [email protected]

Weakness enumeration for CVE-2018-4879

Affected software / configurations for CVE-2018-4879

Vendor Product Version Raw CPE
adobe acrobat >= 17.0, <= 17.011.30070 cpe:2.3:a:adobe:acrobat:*:*:*:*:*:*:*:*
adobe acrobat_dc >= -, <= 18.009.20050 cpe:2.3:a:adobe:acrobat_dc:*:*:*:*:continuous:*:*:*
adobe acrobat_dc >= 15.0, <= 15.006.30394 cpe:2.3:a:adobe:acrobat_dc:*:*:*:*:classic:*:*:*
adobe acrobat_reader >= 17.0, <= 17.011.30070 cpe:2.3:a:adobe:acrobat_reader:*:*:*:*:*:*:*:*
adobe acrobat_reader_dc >= -, <= 18.009.20050 cpe:2.3:a:adobe:acrobat_reader_dc:*:*:*:*:continuous:*:*:*
adobe acrobat_reader_dc >= 15.0, <= 15.006.30394 cpe:2.3:a:adobe:acrobat_reader_dc:*:*:*:*:classic:*:*:*

References for CVE-2018-4879

cvelogic Threat Intelligence