What is CVE-2020-2771?

CVE-2020-2771 is a low-severity vulnerability in Oracle Solaris. CVSS score: 2.5/10. Published 2020-04-15.

How severe is CVE-2020-2771?

Low severity. CVSS v3 base score is 2.5 out of 10.

Is CVE-2020-2771 known to be exploited?

3 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Vulnerability in Oracle Solaris

CVE-2020-2771

Vulnerability in the Oracle Solaris product of Oracle Systems (component: Whodo). Supported versions that are affected are 10 and 11. Difficult to exploit vulnerability allows low privileged attacker with logon to the infrastructure where Oracle Solaris executes to compromise Oracle Solaris. Successful attacks require human interaction from a person other than the attacker and while the vulnerability is in Oracle Solaris, attacks may significantly impact additional products. Successful attacks of this vulnerability can result in unauthorized read access to a subset of Oracle Solaris accessible data. CVSS 3.0 Base Score 2.5 (Confidentiality impacts). CVSS Vector: (CVSS:3.0/AV:L/AC:H/PR:L/UI:R/S:C/C:L/I:N/A:N).

Published 2020-04-15 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 2.5 (Low). Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:C/C:L/I:N/A:N.

EPSS exploit prediction

EPSS: 0.005 (42.9th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 43rd percentile — 42.9% 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

Oracle Solaris — versions 10, 11
Oracle Corporation Solaris Operating System — versions 10, 11

Public proof-of-concept exploits

References

www.oracle.com/security-alerts/cpuapr2020.html (Vendor Advisory)
www.openwall.com/lists/oss-security/2020/04/15/3 (mailing-list, Mailing List, Third Party Advisory)
seclists.org/fulldisclosure/2020/Apr/25 (mailing-list, Mailing List, Third Party Advisory)
packetstormsecurity.com/files/157282/Oracle-Solaris-11.x-10-whodo-w-Buffer-Over… (Exploit, VDB Entry, Third Party Advisory)

Frequently asked questions

What is CVE-2020-2771?: CVE-2020-2771 is a low-severity vulnerability in Oracle Solaris. CVSS score: 2.5/10. Published 2020-04-15.
How severe is CVE-2020-2771?: Low severity. CVSS v3 base score is 2.5 out of 10.
Is CVE-2020-2771 known to be exploited?: 3 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.