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CVE-2018-1000101

29
FAUCET Score

CVE-2018-1000101 is a critical Improper Null Termination vulnerability (CWE-170) affecting Mingw-w64 versions 5.0.3 and earlier, 5.0.4, 6.0.0, and 7.0.0 in the mingw-w64-crt (libc)->(v)snprintf functions. This flaw can corrupt subsequent string functions, potentially leading to severe consequences. With a CVSS score of 9.8 (CRITICAL), it is remotely exploitable over a network with low attack complexity, allowing for high impact on confidentiality, integrity, and availability. There is currently no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
<= 5.0.3CPE matchmatch criteria
cpe:2.3:a:mingw-w64:mingw-w64:*:*:*:*:*:*:*:*

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
2.35%
Probability of exploitation in next 30 days
EPSS Percentile
81.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0235 is in the 72nd percentile among its peer group of 36,862 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

raw.githubusercontent.com / distributedweaknessfiling/cvelist/master/2018/1000xxx/CVE-2018-1000101.json
sourceforge.net / p/mingw-w64/bugs/709
sourceforge.net / p/mingw-w64/bugs/709
Third Party Advisory
sourceforge.net / p/mingw-w64/mingw-w64/ci/v5.x/tree/mingw-w64-crt/stdio/snprintf.c
PatchThird Party Advisory
sourceforge.net / p/mingw-w64/mingw-w64/ci/v5.x/tree/mingw-w64-crt/stdio/vsnprintf.c
PatchThird Party Advisory