How severe is CVE-2023-0739?

Medium severity. CVSS v3 base score is 6.8 out of 10.

Vulnerability in Answer

CVE-2023-0739

Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') in GitHub repository answerdev/answer prior to 1.0.4.

Vulnerability class: Race Condition

Published 2023-02-08 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 6.8 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:H.

EPSS exploit prediction

EPSS: 0.007 (50.9th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 51st percentile — 50.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.007 · newest: 0.007 · change: 0.000

Affected products

Answer
Answerdev Answerdev/answer — versions unspecified

Weakness classification (CWE)

CWE-362 — Concurrent Execution using Shared Resource with Improper Synchronization (Race Condition)

References

huntr.dev/bounties/93d7fac9-50be-4624-9096-45b89fbfd4ae (Exploit, Third Party Advisory)
github.com/answerdev/answer/commit/1ee34b884b905d14d4db457563176b77a974b992 (Patch)

Frequently asked questions

What is CVE-2023-0739?: CVE-2023-0739 is a medium-severity vulnerability in Answer, classified under Concurrent Execution using Shared Resource with Improper Synchronization (Race Condition). CVSS score: 6.8/10. Published 2023-02-08.
How severe is CVE-2023-0739?: Medium severity. CVSS v3 base score is 6.8 out of 10.