How severe is CVE-2020-16147?

CVE-2020-16147 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2020-16147 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (79th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-16147?

CVE-2020-16147 primarily affects Telmat Accesslog Firmware. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2020-16147?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

When was CVE-2020-16147 published?

CVE-2020-16147 was published on 2020-09-24 and last updated on 2026-06-17.

CVE-2020-16147

CVE-2020-16147 is a critical-severity vulnerability in Telmat Accesslog Firmware with a CVSS 3.x base score of 9.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-78.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v2: 10.0
EPSS exploit prediction: 2% (79th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-78
Affected product: Telmat Accesslog Firmware
Published: 2020-09-24
Last modified: 2026-06-17

Description

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.

Frequently asked questions

What is 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.
How severe is CVE-2020-16147?: CVE-2020-16147 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2020-16147 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (79th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-16147?: CVE-2020-16147 primarily affects Telmat Accesslog Firmware. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2020-16147?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2020-16147 published?: CVE-2020-16147 was published on 2020-09-24 and last updated on 2026-06-17.

References

Affected products (3)

cpe:2.3:o:telmat:accesslog_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:telmat:educ\@box_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:telmat:git\@box_firmware:*:*:*:*:*:*:*:*

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