Every CVE Search/ Get API key

CVE-2019-16166

GNU cflow through 1.6 has a heap-based buffer over-read in the nexttoken function in parser.c.

6.5 MediumFix available

GNU cflow through 1.6 has a heap-based buffer over-read in the nexttoken function in parser.c.

Attack profile

How easy it is to exploit

Attack vector
Network
Complexity
Low
Privileges needed
None
User interaction
Required

What an attacker can affect

Confidentiality
None
Integrity
None
Availability
High

Exploit likelihood

1.11%Up 0.7 points since Apr 14, 2021
90%50%10%1%

What each source reports

NVD Score used 6.5

GNU cflow through 1.6 has a heap-based buffer over-read in the nexttoken function in parser.c.

Record
CVE-2019-16166
CVSS 3.1
6.5 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
CVSS 2.0
4.3 MediumAV:N/AC:M/Au:N/C:N/I:N/A:P
Weakness
CWE-125
Updated
2026-11-02
CVE List No score

GNU cflow through 1.6 has a heap-based buffer over-read in the nexttoken function in parser.c.

Record
CVE-2019-16166
Updated
2026-11-02
EUVDEUVD-2019-6986 No score

GNU cflow through 1.6 has a heap-based buffer over-read in the nexttoken function in parser.c.

Record
EUVD-2019-6986
Updated
2026-11-03
GitHub AdvisoriesGHSA-5g5w-m23x-cv77 6.5

GNU cflow through 1.6 has a heap-based buffer over-read in the nexttoken function in parser.c.

GNU cflow through 1.6 has a heap-based buffer over-read in the nexttoken function in parser.c.

Record
GHSA-5g5w-m23x-cv77
CVSS 3.1
6.5 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Weakness
CWE-125
Updated
2026-11-02
OSV 6.5

GNU cflow through 1.6 has a heap-based buffer over-read in the nexttoken function in parser.c.

Record
CVE-2019-16166
CVSS 3.1
6.5 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Updated
2026-11-02
OSVDEBIAN-CVE-2019-16166 6.5

GNU cflow through 1.6 has a heap-based buffer over-read in the nexttoken function in parser.c.

Record
DEBIAN-CVE-2019-16166
CVSS 3.1
6.5 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Updated
2026-11-02
OSVUBUNTU-CVE-2019-16166 6.5

GNU cflow through 1.6 has a heap-based buffer over-read in the nexttoken function in parser.c.

Record
UBUNTU-CVE-2019-16166
CVSS 3.1
6.5 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Updated
2026-11-02
OSVopenSUSE-SU-2024:11709-1 No score

cflow-1.7-1.1 on GA media

These are all security issues fixed in the cflow-1.7-1.1 package on the GA media of openSUSE Tumbleweed.

Record
openSUSE-SU-2024:11709-1
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
cflow
Debian:12
 before 1:1.6-6
1:1.6-6
cflow
Debian:13
 before 1:1.6-6
1:1.6-6
cflow
Debian:14
 before 1:1.6-6
1:1.6-6
cflow
Ubuntu:Pro:16.04:LTS
 All versions, plus listed versions
1:1.4+dfsg1-3ubuntu11:1.4+dfsg1-3ubuntu1.16.04.1~esm1
 None known
cflow
Ubuntu:Pro:18.04:LTS
 All versions, plus listed versions
1:1.4+dfsg1-3ubuntu11:1.4+dfsg1-3ubuntu1.18.04.1~esm1
 None known
cflow
Ubuntu:20.04:LTS
 All versions, plus listed versions
1:1.6-4
 None known
cflow
Ubuntu:22.04:LTS
 All versions, plus listed versions
1:1.6-41:1.6-61:1.7-2
 None known
cflow
Ubuntu:24.04:LTS
 All versions, plus listed versions
1:1.7-41:1.7-5
 None known
cflow
Ubuntu:25.10
 All versions, plus listed versions
1:1.7-51:1.8-1
 None known
cflow
Ubuntu:26.10
 All versions, plus listed versions
1:1.8-1build1
 None known
cflow
Ubuntu:26.04:LTS
 All versions, plus listed versions
1:1.8-11:1.8-1build1
 None known
cflow
openSUSE:Tumbleweed
From an advisory covering 2 CVEs
 before 1.7-1.1
1.7-1.1

History

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

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

In short

CVE-2019-16166 is a medium vulnerability (CVSS 6.5) in Gnu Cflow, published September 9, 2019. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.11%, the 66th percentile. Fixed in cflow 1:1.6-6.

References

Pages All vulnerabilities Browse Docs Sources Guide Get API key
MoveEnter Open