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CVE-2018-3988

18
FAUCET Score

CVE-2018-3988 describes a vulnerability in Signal Messenger for Android versions up to 4.24.8, where using the photo feature within the "attach file" menu for "disappearing messages" leaves the image in a publicly accessible cache directory. This allows any application on the system to access the private information. Rated as MEDIUM severity with a CVSS score of 4.7, the vulnerability requires local access and high attack complexity to achieve high confidentiality impact. There is no evidence of active exploitation, publicly available exploit code, or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
4.24.8CPE matchmatch criteria
cpe:2.3:a:signal:private_messenger:4.24.8:*:*:*:*:android:*:*

CVSS Data

CVSS version used by this source: 3.0

3.3LOW

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

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
LOW
Integrity Impact
NONE
Availability Impact
NONE
Exploitability Score
1.8
Impact Score
1.4
CvssVersion
3.0

Exploit Intelligence

EPSS Score
0.51%
Probability of exploitation in next 30 days
EPSS Percentile
40.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0051 is in the 86th percentile among its peer group of 1,297 CVEs.

Social Chatter

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

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.4 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

talosintelligence.com / vulnerability_reports/TALOS-2018-0656
ExploitThird Party Advisory
securityfocus.com / bid/106207
Broken LinkThird Party AdvisoryVDB Entry