CVSS 3.1
7.0 highCVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:HCVE-2021-29221
High (7.0) in erlang erlang\/otp. EPSS 0.6% chance of exploitation in the next 30 days.
A local privilege escalation vulnerability was discovered in Erlang/OTP prior to version 23.2.3. By adding files to an existing installation's directory, a local attacker could hijack accounts of other users running Erlang programs or possibly coerce a service running with "erlsrv.exe" to execute arbitrary code as Local System. This can occur only under specific conditions on Windows with unsafe filesystem permissions.
Severity
- EPSS
- 0.6% chance of exploitation in the next 30 days; higher than 47% of CVEs (scores of 2026-10-31)
- CWE
- CWE-426
- Published
- Modified
- Record from
- the NVD, synced
Affected
- erlang:erlang\/otp
References
- https://deepsurface.com/deepsurface-security-advisory-local-privilege-escalation-in-erlang-on-windows-cve-2021-29221/
- https://github.com/erlang/otp/releases/tag/OTP-23.2.3
- https://deepsurface.com/deepsurface-security-advisory-local-privilege-escalation-in-erlang-on-windows-cve-2021-29221/
- https://github.com/erlang/otp/releases/tag/OTP-23.2.3