What is CVE-2023-4127?

CVE-2023-4127 is a medium-severity vulnerability in Answer, classified under Race Condition within a Thread. CVSS score: 5.9/10. Published 2023-08-03.

How severe is CVE-2023-4127?

Medium severity. CVSS v3 base score is 5.9 out of 10.

Vulnerability in Answer

CVE-2023-4127

Race Condition within a Thread in GitHub repository answerdev/answer prior to v1.1.1.

Published 2023-08-03 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 5.9 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N.

EPSS exploit prediction

EPSS: 0.005 (40.4th percentile), scored 2026-10-20.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 40th percentile — 40.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.005 · newest: 0.005 · change: 0.000

Affected products

Answer
Answerdev Answerdev/answer — versions unspecified

Weakness classification (CWE)

CWE-366 — Race Condition within a Thread

References

huntr.dev/bounties/cf7d19e3-1318-4c77-8366-d8d04a0b41ba (Exploit, Patch, Third Party Advisory)
github.com/answerdev/answer/commit/47661dc8a356ce6aa7793f1bd950399292180182 (Patch)

Frequently asked questions

What is CVE-2023-4127?: CVE-2023-4127 is a medium-severity vulnerability in Answer, classified under Race Condition within a Thread. CVSS score: 5.9/10. Published 2023-08-03.
How severe is CVE-2023-4127?: Medium severity. CVSS v3 base score is 5.9 out of 10.