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CVE-2018-21028

Boa through 0.94.14rc21 allows remote attackers to trigger a memory leak because of missing calls...

7.5 High

Boa through 0.94.14rc21 allows remote attackers to trigger a memory leak because of missing calls to the free function.

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
None
Integrity
None
Availability
High

Exploit likelihood

2.07%Up 1.3 points since Apr 14, 2021
90%50%10%1%

What each source reports

NVD Score used 7.5

Boa through 0.94.14rc21 allows remote attackers to trigger a memory leak because of missing calls to the free function.

Record
CVE-2018-21028
CVSS 3.1
7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS 2.0
5.0 MediumAV:N/AC:L/Au:N/C:N/I:N/A:P
Weakness
CWE-772
Updated
2026-11-02
CVE List No score

Boa through 0.94.14rc21 allows remote attackers to trigger a memory leak because of missing calls to the free function.

Record
CVE-2018-21028
Updated
2026-11-02
EUVDEUVD-2018-13550 No score

Boa through 0.94.14rc21 allows remote attackers to trigger a memory leak because of missing calls to the free function.

Record
EUVD-2018-13550
Updated
2026-11-03
GitHub AdvisoriesGHSA-w8rr-89rm-479r 7.5

Boa through 0.94.14rc21 allows remote attackers to trigger a memory leak because of missing calls...

Boa through 0.94.14rc21 allows remote attackers to trigger a memory leak because of missing calls to the free function.

Record
GHSA-w8rr-89rm-479r
CVSS 3.1
7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness
CWE-772
Updated
2026-11-02
OSV 7.5

Boa through 0.94.14rc21 allows remote attackers to trigger a memory leak because of missing calls to the free function.

Record
CVE-2018-21028
CVSS 3.1
7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Updated
2026-11-02

Affected products

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-2018-21028 is a high vulnerability (CVSS 7.5) in Boa, published October 11, 2019. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 2.07%, the 81st percentile. No source names a fixed version.

References

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