CVE-2020-16147: The login page in Telmat AccessLog <= 6.0 (TAL_20180415) allows an attacker to get root shell access via Unaut

Q: How do I fix CVE-2020-16147?

accesslog firmware: mitigate or apply the listed mitigation; educ\@box firmware: mitigate or apply the listed mitigation; git\@box firmware: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Q: Is CVE-2020-16147 being exploited?

CVE-2020-16147 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2020-16147 affect?

CVE-2020-16147 affects accesslog firmware, educ\@box firmware, git\@box firmware. Severity is critical (CVSS 9.8). 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.

Q: How urgent is CVE-2020-16147?

Priority 65/100. Critical severity; Public exploit reference; Remotely exploitable, no login, no user action

This week

CRITICAL 9.8REMOTEMITIGATEMITIGATEMITIGATE

CVE-2020-16147 is a critical-severity flaw (CVSS 9.8) affecting accesslog firmware, educ\@box firmware, git\@box firmware. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

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.

Why this priority

Critical severity
Public exploit reference
Remotely exploitable, no login, no user action

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	9.8 (Critical)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	2.0% (top 19%)
CISA exploited list	No
Weakness	CWE-78
Published	2020-09-24
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: telmat

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2020-09-24 14:15 UTCPublished CVE record published
2026-06-17 02:57 UTCUpdated Record last modified

telmat accesslog firmware MITIGATE

Affected: <= 6.0\(tal_20180415\)

Fixed in: no fixed release known

Safe to downgrade to: no unaffected older release

Check your OS release

cat /etc/os-release; uname -r

Debian / Ubuntu

sudo apt update && sudo apt full-upgrade

RHEL / Amazon Linux / Fedora

sudo dnf upgrade --refresh

Windows

Install the latest cumulative update from Windows Update

If no patch exists yet

OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.

telmat educ\@box firmware MITIGATE

Affected: <= 6.0\(tal_20180415\)

Fixed in: no fixed release known

Safe to downgrade to: no unaffected older release

Check your OS release

cat /etc/os-release; uname -r

Debian / Ubuntu

sudo apt update && sudo apt full-upgrade

RHEL / Amazon Linux / Fedora

sudo dnf upgrade --refresh

Windows

Install the latest cumulative update from Windows Update

If no patch exists yet

OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.

telmat git\@box firmware MITIGATE

Affected: <= 6.0\(tal_20180415\)

Fixed in: no fixed release known

Safe to downgrade to: no unaffected older release

Check your OS release

cat /etc/os-release; uname -r

Debian / Ubuntu

sudo apt update && sudo apt full-upgrade

RHEL / Amazon Linux / Fedora

sudo dnf upgrade --refresh

Windows

Install the latest cumulative update from Windows Update

If no patch exists yet

OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2020-16147?

accesslog firmware: mitigate or apply the listed mitigation; educ\@box firmware: mitigate or apply the listed mitigation; git\@box firmware: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2020-16147 being exploited?

CVE-2020-16147 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2020-16147 affect?

CVE-2020-16147 affects accesslog firmware, educ\@box firmware, git\@box firmware. Severity is critical (CVSS 9.8). 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 urgent is CVE-2020-16147?

Priority 65/100. Critical severity; Public exploit reference; Remotely exploitable, no login, no user action

Software pages

Git vulnerabilities

Related CVEs

CVE-2020-16148 HIGH 7.2 MITIGATE MITIGATE The ping page of the administration panel in Telmat AccessLog <= 6.0 (TAL_20180415) allows an attacker to get

References

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