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CVE-2018-4991

33
FAUCET Score

CVE-2018-4991 describes an improper certificate validation vulnerability in Adobe Creative Cloud Desktop Application versions 4.4.1.298 and earlier. This critical vulnerability, with a CVSS score of 9.8, allows for a security bypass due to its network-based attack vector, low complexity, and potential for complete compromise of confidentiality, integrity, and availability. While there is no evidence of active exploitation or publicly available exploit code, the vulnerability has garnered significant community attention with 11 mentions and one media article.

Impacted Technologies

VendorProductVersion(s)CPE
<= 4.4.1.298CPE matchmatch criteria
cpe:2.3:a:adobe:creative_cloud:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

9.8CRITICAL

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
5.9
CvssVersion
3.0

Exploit Intelligence

EPSS Score
4.69%
Probability of exploitation in next 30 days
EPSS Percentile
90.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0469 is in the 85th percentile among its peer group of 36,833 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Patches (1)

adobevendor investigatingvia nvd_reference
View patch

References

helpx.adobe.com / security/products/creative-cloud/apsb18-12.html
Vendor Advisory
securityfocus.com / bid/104103
Third Party AdvisoryVDB Entry
securitytracker.com / id/1040860
Third Party AdvisoryVDB Entry