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CVE-2018-1000101

Mingw-w64 version 5.0.3 and earlier, 5.0.4, 6.0.0 and 7.0.0 contains an Improper Null Termination...

9.8 CriticalFix available

Mingw-w64 version 5.0.3 and earlier, 5.0.4, 6.0.0 and 7.0.0 contains an Improper Null Termination (CWE-170) vulnerability in mingw-w64-crt (libc)->(v)snprintf that can result in The bug may be used to corrupt subsequent string functions. This attack appear to be exploitable via Depending on the usage, worst case: network.

Attack profile

How easy it is to exploit

Attack vector
Network
Complexity
Low
Privileges needed
None
User interaction
None

What an attacker can affect

Confidentiality
High
Integrity
High
Availability
High

Exploit likelihood

2.24%Up 1.4 points since Apr 14, 2021
90%50%10%1%

What each source reports

NVD Score used 9.8

Mingw-w64 version 5.0.3 and earlier, 5.0.4, 6.0.0 and 7.0.0 contains an Improper Null Termination (CWE-170) vulnerability in mingw-w64-crt (libc)->(v)snprintf that can result in The bug may be used to corrupt subsequent string functions. This attack appear to be exploitable via Depending on the usage, worst case: network.

Record
CVE-2018-1000101
CVSS 3.0
9.8 CriticalCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS 2.0
7.5 HighAV:N/AC:L/Au:N/C:P/I:P/A:P
Updated
2026-11-02
CVE List No score

Mingw-w64 version 5.0.3 and earlier, 5.0.4, 6.0.0 and 7.0.0 contains an Improper Null Termination (CWE-170) vulnerability in mingw-w64-crt (libc)->(v)snprintf that can result in The bug may be used to corrupt subsequent string functions. This attack appear to be exploitable via Depending on the usage, worst case: network.

Record
CVE-2018-1000101
Updated
2026-11-02
EUVDEUVD-2018-1839 No score

Mingw-w64 version 5.0.3 and earlier, 5.0.4, 6.0.0 and 7.0.0 contains an Improper Null Termination (CWE-170) vulnerability in mingw-w64-crt (libc)->(v)snprintf that can result in The bug may be used to corrupt subsequent string functions. This attack appear to be exploitable via Depending on the usage, worst case: network.

Record
EUVD-2018-1839
Updated
2026-11-03
GitHub AdvisoriesGHSA-2994-cf23-4hmp 9.8

Mingw-w64 version 5.0.3 and earlier, 5.0.4, 6.0.0 and 7.0.0 contains an Improper Null Termination...

Mingw-w64 version 5.0.3 and earlier, 5.0.4, 6.0.0 and 7.0.0 contains an Improper Null Termination (CWE-170) vulnerability in mingw-w64-crt (libc)->(v)snprintf that can result in The bug may be used to corrupt subsequent string functions. This attack appear to be exploitable via Depending on the usage, worst case: network.

Record
GHSA-2994-cf23-4hmp
CVSS 3.0
9.8 CriticalCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Updated
2026-11-02
OSV 9.8

Mingw-w64 version 5.0.3 and earlier, 5.0.4, 6.0.0 and 7.0.0 contains an Improper Null Termination (CWE-170) vulnerability in mingw-w64-crt (libc)->(v)snprintf that can result in The bug may be used to corrupt subsequent string functions. This attack appear to be exploitable via Depending on the usage, worst case: network.

Record
CVE-2018-1000101
CVSS 3.0
9.8 CriticalCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Updated
2026-11-02
OSVDEBIAN-CVE-2018-1000101 9.8

Mingw-w64 version 5.0.3 and earlier, 5.0.4, 6.0.0 and 7.0.0 contains an Improper Null Termination (CWE-170) vulnerability in mingw-w64-crt (libc)->(v)snprintf that can result in The bug may be used to corrupt subsequent string functions. This attack appear to be exploitable via Depending on the usage, worst case: network.

Record
DEBIAN-CVE-2018-1000101
CVSS 3.0
9.8 CriticalCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Updated
2026-11-02
OSVUBUNTU-CVE-2018-1000101 9.8

Mingw-w64 version 5.0.3 and earlier, 5.0.4, 6.0.0 and 7.0.0 contains an Improper Null Termination (CWE-170) vulnerability in mingw-w64-crt (libc)->(v)snprintf that can result in The bug may be used to corrupt subsequent string functions. This attack appear to be exploitable via Depending on the usage, worst case: network.

Record
UBUNTU-CVE-2018-1000101
CVSS 3.0
9.8 CriticalCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
mingw-w64
Debian:12
 before 8.0.0-1
8.0.0-1
mingw-w64
Debian:13
 before 8.0.0-1
8.0.0-1
mingw-w64
Debian:14
 before 8.0.0-1
8.0.0-1
mingw-w64
Ubuntu:14.04:LTS
 All versions, plus listed versions
3.0~svn5915-13.0.0-33.1.0-1
 None known
mingw-w64
Ubuntu:16.04:LTS
 All versions, plus listed versions
4.0.2-44.0.4-14.0.4-2
 None known
mingw-w64
Ubuntu:18.04:LTS
 All versions, plus listed versions
5.0.2-25.0.3-1
 None known
mingw-w64
Ubuntu:20.04:LTS
 All versions, plus listed versions
6.0.0-36.0.0-47.0.0-2
 None known
mingw-w64
Ubuntu:22.04:LTS
 All versions, plus listed versions
8.0.0-1
 None known
mingw-w64
Ubuntu:24.04:LTS
 All versions, plus listed versions
11.0.1-211.0.1-311.0.1-3build1
 None known
mingw-w64
Ubuntu:25.10
 All versions, plus listed versions
12.0.0-3
 None known
mingw-w64
Ubuntu:26.10
 All versions, plus listed versions
13.0.0-2ubuntu1
 None known
mingw-w64
Ubuntu:26.04:LTS
 All versions, plus listed versions
12.0.0-313.0.0-1+bootstrap213.0.0-2ubuntu1
 None known

History

History
RecordedChangedSources
aliasesEUVD
first indexedCVE List, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2018-1000101 is a critical vulnerability (CVSS 9.8) in Mingw-w64, published March 6, 2018. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 2.24%, the 82nd percentile. Fixed in mingw-w64 8.0.0-1.

References

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