CVE-2020-27794 json
A double free issue was discovered in radare2 in cmd_info.c:cmd_info().
published 2022-08-19 4 y ago modified 2026-06-17 4 mo ago also EUVD-2020-20296
- cvss
- 9.1
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.1%
- EPSS 1.1% chance of exploitation in 30 days, percentile 66%
- public exploits
- 0
- none known
Summary
A double free issue was discovered in radare2 in cmd_info.c:cmd_info(). Successful exploitation could lead to modification of unexpected memory locations and potentially causing a crash.
Patch / fix
- radare radare2 4.4.0
- radare2 Alpine 3.24, Alpine 3.23, Alpine 3.22 +4 more 4.4.0-r0
alpine advisories ALPINE-CVE-2020-27794
Alpine secdb © Alpine Linux, from https://secdb.alpinelinux.org via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0
Exploit prediction
1.14% chance of exploitation in the next 30 days, higher than 66% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- github.com https://github.com/radareorg/radare2/issues/16303 referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 9.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H |
Affected products
- n/a radare2
Classification
- Weakness
-
- CWE-415 Double Free
References
-
github.com
/radareorg/radare2/commit/cb8b683758edddae2d2f62e8e63a738c39f92683
patch, third-party-advisory
-
github.com
/radareorg/radare2/issues/16303
exploit, issue-tracking, patch, third-party-advisory
Sources
- CVE List CVE-2020-27794
- NVD CVE-2020-27794
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.