What is CVE-2020-16147?

CVE-2020-16147 is a critical-severity vulnerability in Telmat Accesslog, classified under OS Command Injection. CVSS score: 9.8/10. Published 2020-09-24.

How severe is CVE-2020-16147?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Is CVE-2020-16147 known to be exploited?

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

RCE in Telmat Accesslog

CVE-2020-16147

The login page in Telmat AccessLog <= 6.0 (TAL_20180415) allows an attacker to get root shell access via Unauthenticated code injection over the network.

Vulnerability class: Command Injection (OS Command Injection)

Published 2020-09-24 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.020 (80.4th percentile), scored 2026-10-05.

Low probability of exploitation in the next 30 days, but still tracked. 80th percentile — 80.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.020 · newest: 0.020 · change: 0.000

Affected products

Weakness classification (CWE)

CWE-78 — OS Command Injection

Public proof-of-concept exploits

References

podalirius.net/cves/2020-16147/ (Exploit, Third Party Advisory)
podalirius.net/en/cves/2020-16147/ (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2020-16147?: CVE-2020-16147 is a critical-severity vulnerability in Telmat Accesslog, classified under OS Command Injection. CVSS score: 9.8/10. Published 2020-09-24.
How severe is CVE-2020-16147?: Critical severity. CVSS v3 base score is 9.8 out of 10.
Is CVE-2020-16147 known to be exploited?: 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.