Vulnerability · CVE-2020-8231
Due to use of a dangling pointer, libcurl 7.29.0 through 7.71.1 can use the wrong connection when sending data.
Published Dec 14, 2020 · catalog updated Oct 14, 2026 · Due to use of
Check if you run it
No confirmed exploitation is on record for CVE-2020-8231. EPSS is 5.34%. Act only if a listed version of Due to use of is installed.
Gaps on this record
- The stored product name is a package slug. The name on this page is taken from the title (Due to use of).
- No vendor fix or required action is stored. Compare the linked advisory before you change production.
- Severity
- High7.5
- Known exploitation
- Not in CISA/VulnCheck KEV
- EPSS
- 5.34%
- Remediation
- Advisory link
- Affected products
- cpe debian/debian linux · cpe haxx/libcurl · cpe oracle/communications cloud native core policy · cpe siemens/sinec infrastructure network services · cpe splunk/universal forwarder
Due to use of a dangling pointer, libcurl 7.29.0 through 7.71.1 can use the wrong connection when sending data.
Are you affected?
Enter the version you run. The result uses only the ranges stored on this record.
The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.
- cpe debian/debian linux10.0
- cpe haxx/libcurlversion unspecified
- cpe oracle/communications cloud native core policy1.14.0
- cpe siemens/sinec infrastructure network servicesversion unspecified
- cpe splunk/universal forwarder9.1.0
How to fix CVE-2020-8231
Recommended remediation
A patch or advisory reference is linked. Open the original publisher for availability by product version.
Official advisories
What to do
Three questions, each answered from this record only. Confirm the vendor advisory before you patch.
Should you patch?
No confirmed exploitation is on record for CVE-2020-8231. EPSS is 5.34%. Act only if a listed version of Due to use of is installed.
Which versions are affected?
Compare what you have installed with debian/debian linux 10.0; oracle/communications cloud native core policy 1.14.0; splunk/universal forwarder 9.1.0. Compare the installed version with the linked vendor advisory before you change production.
What should an analyst verify?
CWE-416: Use After Free. EPSS 5.34%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.
Code
The project this record applies to. Exploit listings stay in References.
No public source repository is identified for this product.
Timeline
Detection, updates, and resolution for this record.
Dec 14, 2020 · NIST NVD
Detected
Due to use of a dangling pointer, libcurl 7.29.0 through 7.71.1 can use the wrong connection when sending data.
Oct 14, 2026 · NIST NVD
Updated
Due to use of a dangling pointer, libcurl 7.29.0 through 7.71.1 can use the wrong connection when sending data.
Sources
- CVE.orgVulnerability recordCVE-2020-8231
Official CVE identifier
cve.org - FIRST EPSSExploitation probabilityCVE-2020-8231
30-day exploitation probability 5.3%
first.org - NIST NVDVulnerability recordCVE-2020-8231
Due to use of a dangling pointer, libcurl 7.29.0 through 7.71.1 can use the wrong connection when sending data.
nvd.nist.gov
References
Freshness
Last verified in this catalog Oct 16, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.