CVE-2020-24753
9.8
CRITICAL · CVSS 3.1 · EPSS 2.6% (pctl 85)
In your normal cycle
Critical by CVSS (9.8), but no sign of active exploitation.
Description
A memory corruption vulnerability in Objective Open CBOR Run-time (oocborrt) in versions before 2020-08-12 could allow an attacker to execute code via crafted Concise Binary Object Representation (CBOR) input to the cbor2json decoder. An uncaught error while decoding CBOR Major Type 3 text strings leads to the use of an attacker-controllable uninitialized stack value. This can be used to modify memory, causing a crash or potentially exploitable heap corruption.
Scoring
| CVSS | 9.8 (CRITICAL, v3.1) |
|---|---|
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| EPSS | 2.64% — more likely to be exploited than 85% of all CVEs |
| Weakness | CWE-755 |
| On CISA KEV | no |
| Public exploit | none known |
| Published | 2020-09-17 |
| Last modified | 2026-06-17 |
Affected (1)
| Vendor | Product |
|---|---|
| objective open cbor run-time project | objective open cbor run-time |
References
→ the Explorer · watch your stack · NVD