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CVE-2018-19862

50
FAUCET Score

CVE-2018-19862 is a critical buffer overflow vulnerability affecting MiniShare 1.4.1 and earlier, a discontinued product. This flaw allows unauthenticated remote attackers to execute arbitrary code by sending a specially crafted, long HTTP POST request. With a CVSS score of 9.8 (CRITICAL) and a FAUCET Risk Score of 98/100, the vulnerability is easily exploitable over the network with no user interaction required, leading to complete compromise of confidentiality, integrity, and availability. While not listed on CISA's KEV catalog, public exploit code is available on ExploitDB, and the vulnerability has garnered significant community discussion, indicating awareness among threat actors.

Impacted Technologies

VendorProductVersion(s)CPE
<= 1.4.1CPE matchmatch criteria
cpe:2.3:a:minishare_project:minishare:*:*:*:*:*:*:*:*

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
12.55%
Probability of exploitation in next 30 days
EPSS Percentile
95.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
ExploitDB: EDB-45999 · Dec 18, 2018
This CVE's current EPSS score of 0.1255 is in the 92nd percentile among its peer group of 36,897 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

No media coverage found for this CVE.

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

Remediation

Remediation records are not available for this CVE.

References

packetstormsecurity.com / files/150689/MiniShare-1.4.1-HEAD-POST-Buffer-Overflow.html
ExploitThird Party AdvisoryVDB Entry
seclists.org / fulldisclosure/2018/Dec/19
ExploitMailing ListThird Party Advisory
exploit-db.com / exploits/45999
ExploitThird Party AdvisoryVDB Entry