SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

CVE-2018-20221

Secure/SAService.rem in Deltek Ajera Timesheets 9.10.16 and prior are vulnerable to remote code execution via deserialization of untrusted user input from an authenticated user.

EXPLOITHIGH 8.8EPSS 10.3%

Does this matter?

EPSS puts the probability of exploitation in the next 30 days at 10.3%, higher than 96% of all known CVEs. Patch or mitigate before the next change window.

Description

Secure/SAService.rem in Deltek Ajera Timesheets 9.10.16 and prior are vulnerable to remote code execution via deserialization of untrusted user input from an authenticated user. The executed code will run as the IIS Application Pool that is running the application.

CVSS 3.0
8.8 HIGHCVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS
10.27% probability · 96th percentile
Public exploits
1 in Exploit-DB · first 7 January 2019
CISA KEV
Not listed
Weakness
CWE-502
Affected
deltek/ajera
Source
cve@mitre.org
EPSS trend
0%8%15%21 September 2026: 7.94%22 September 2026: 10.27%27 October 2026: 10.27%21 September 202627 October 2026

EPSS moved from 7.9% on 21 September 2026 to 10.3% on 27 October 2026. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”.

Public exploits (1)

Entries in Exploit-DB that cite this CVE. Links go to the Exploit-DB page and to the file in the public repository; nothing is hosted here. A verified tick means the Exploit-DB team confirmed the exploit works against the stated version.

EDB-IDTitleTypePublishedVerified
EDB-46086source ↗Ajera Timesheets 9.10.16 - Deserialization of Untrusted Datawindows · Anthony Colewebapps7 January 2019no

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