SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

CVE-2018-16367

In OnlineJudge 2.0, the sandbox has an incorrect access control vulnerability that can write a file anywhere.

CRITICAL 9.9EPSS 2.17%

Does this matter?

High impact if exploited, but EPSS currently rates exploitation as unlikely (2.17%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.

Description

In OnlineJudge 2.0, the sandbox has an incorrect access control vulnerability that can write a file anywhere. A user can write a directory listing to /tmp, and can leak file data with a #include.

CVSS 3.0
9.9 CRITICALCVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
EPSS
2.17% probability · 82th percentile
Public exploits
None in Exploit-DB
CISA KEV
Not listed
Weakness
CWE-22
Affected
qduoj/onlinejudge
Source
cve@mitre.org
EPSS trend
0%3%5%27 October 2026: 2.17%27 October 202627 October 2026

EPSS 2.2% since 27 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.

References

Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.