CVE-2018-21028
mediumpriority · track · 31EPSS 0.021 · 81 %ileEUUSgrimoire priorityP3 · Track
Exploitable?
—
no known exploitation
Likely / severe?
2.07% (81st) EPSS
CVSS 5 · medium
Who says so?
3 sources
cnnvd · enisa_euvd · nvd
EPSS · scored 2026-10-28
Boa through 0.94.14rc21 allows remote attackers to trigger a memory leak because of missing calls to the free function.
01
cvss
Technical severity, 0–10. One row per scoring source.
7.5
010
base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 5–7.5
v3.17.5highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Hprimary · NVD / NIST USexploitability 3.9 · impact 3.6
02
weaknesses
The CWE weakness classes this flaw belongs to.
03
affected products (2)
Products and version ranges known to be affected.
04
also known as (3)
Other names and identifiers for this entity.
05
sources
Which sources assert this record, and when.
07
references (7)
External citations — patches, advisories, analysis.
- https://github.com/gpg/boa/pull/1Patchcnnvd
- https://github.com/gpg/boa/pull/1/commits/e139b87835994d007fbd64eead6c1455d7b8cf4ecnnvd
- https://nvd.nist.gov/vuln/detail/CVE-2018-21028cnnvd
- https://github.com/gpg/boa/pull/1enisa_euvd
- https://github.com/gpg/boa/pull/1/commits/e139b87835994d007fbd64eead6c1455d7b8cf4eenisa_euvd
- https://github.com/gpg/boa/pull/1Third Party Advisorynvd
- https://github.com/gpg/boa/pull/1/commits/e139b87835994d007fbd64eead6c1455d7b8cf4ePatchThird Party Advisorynvd
scry
Attackers weaponise vulnerabilities like this against internet-exposed services. See what is exposed on your perimeter with a free passive scan.
Free scan